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path: root/drivers/firewire/fw-card.c
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Diffstat (limited to 'drivers/firewire/fw-card.c')
-rw-r--r--drivers/firewire/fw-card.c85
1 files changed, 5 insertions, 80 deletions
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index d63d0ed9e048..8b8c8c22f0fc 100644
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -181,83 +181,9 @@ void fw_core_remove_descriptor(struct fw_descriptor *desc)
mutex_unlock(&card_mutex);
}
-#define IRM_RETRIES 2
-
-/*
- * The abi is set by device_for_each_child(), even though we have no use
- * for data, nor do we have a meaningful return value.
- */
-int fw_irm_set_broadcast_channel_register(struct device *dev, void *data)
+static int set_broadcast_channel(struct device *dev, void *data)
{
- struct fw_device *d;
- int rcode;
- int node_id;
- int max_speed;
- int retries;
- int generation;
- __be32 regval;
- struct fw_card *card;
-
- d = fw_device(dev);
- /* FIXME: do we need locking here? */
- generation = d->generation;
- smp_rmb(); /* Ensure generation is at least as old as node_id */
- node_id = d->node_id;
- max_speed = d->max_speed;
- retries = IRM_RETRIES;
- card = d->card;
-tryagain_r:
- rcode = fw_run_transaction(card, TCODE_READ_QUADLET_REQUEST,
- node_id, generation, max_speed,
- CSR_REGISTER_BASE + CSR_BROADCAST_CHANNEL,
- &regval, 4);
- switch (rcode) {
- case RCODE_BUSY:
- if (retries--)
- goto tryagain_r;
- fw_notify("node %x read broadcast channel busy\n",
- node_id);
- return 0;
-
- default:
- fw_notify("node %x read broadcast channel failed %x\n",
- node_id, rcode);
- return 0;
-
- case RCODE_COMPLETE:
- /*
- * Paranoid reporting of nonstandard broadcast channel
- * contents goes here
- */
- if (regval != cpu_to_be32(BROADCAST_CHANNEL_INITIAL))
- return 0;
- break;
- }
- retries = IRM_RETRIES;
- regval = cpu_to_be32(BROADCAST_CHANNEL_INITIAL |
- BROADCAST_CHANNEL_VALID);
-tryagain_w:
- rcode = fw_run_transaction(card,
- TCODE_WRITE_QUADLET_REQUEST, node_id,
- generation, max_speed,
- CSR_REGISTER_BASE + CSR_BROADCAST_CHANNEL,
- &regval, 4);
- switch (rcode) {
- case RCODE_BUSY:
- if (retries--)
- goto tryagain_w;
- fw_notify("node %x write broadcast channel busy\n",
- node_id);
- return 0;
-
- default:
- fw_notify("node %x write broadcast channel failed %x\n",
- node_id, rcode);
- return 0;
-
- case RCODE_COMPLETE:
- return 0;
- }
+ fw_device_set_broadcast_channel(fw_device(dev), (long)data);
return 0;
}
@@ -268,9 +194,9 @@ static void allocate_broadcast_channel(struct fw_card *card, int generation)
fw_iso_resource_manage(card, generation, 1ULL << 31,
&channel, &bandwidth, true);
if (channel == 31) {
- card->is_irm = true;
- device_for_each_child(card->device, NULL,
- fw_irm_set_broadcast_channel_register);
+ card->broadcast_channel_allocated = true;
+ device_for_each_child(card->device, (void *)(long)generation,
+ set_broadcast_channel);
}
}
@@ -302,7 +228,6 @@ static void fw_card_bm_work(struct work_struct *work)
__be32 lock_data[2];
spin_lock_irqsave(&card->lock, flags);
- card->is_irm = false;
if (card->local_node == NULL) {
spin_unlock_irqrestore(&card->lock, flags);