diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-08 20:52:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-08 20:52:19 -0700 |
| commit | 84f7586edab93052bbe7eb72e1e9bce5f7b6ae45 (patch) | |
| tree | 4e76cabe691946dbc01bbc72c67a5ac0eac52038 /drivers/firewire/core-card.c | |
| parent | 8d86dc6a5bcd0f1d5b9364d43843f1bb4b15f57a (diff) | |
| parent | 10389536742cefbedecb67a5b2906f155cf3a1c3 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: core: check for 1394a compliant IRM, fix inaccessibility of Sony camcorder
Diffstat (limited to 'drivers/firewire/core-card.c')
| -rw-r--r-- | drivers/firewire/core-card.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index 9dcb30466ec..371713ff026 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -231,7 +231,7 @@ void fw_schedule_bm_work(struct fw_card *card, unsigned long delay) static void fw_card_bm_work(struct work_struct *work) { struct fw_card *card = container_of(work, struct fw_card, work.work); - struct fw_device *root_device; + struct fw_device *root_device, *irm_device; struct fw_node *root_node; unsigned long flags; int root_id, new_root_id, irm_id, local_id; @@ -239,6 +239,7 @@ static void fw_card_bm_work(struct work_struct *work) bool do_reset = false; bool root_device_is_running; bool root_device_is_cmc; + bool irm_is_1394_1995_only; spin_lock_irqsave(&card->lock, flags); @@ -248,12 +249,18 @@ static void fw_card_bm_work(struct work_struct *work) } generation = card->generation; + root_node = card->root_node; fw_node_get(root_node); root_device = root_node->data; root_device_is_running = root_device && atomic_read(&root_device->state) == FW_DEVICE_RUNNING; root_device_is_cmc = root_device && root_device->cmc; + + irm_device = card->irm_node->data; + irm_is_1394_1995_only = irm_device && irm_device->config_rom && + (irm_device->config_rom[2] & 0x000000f0) == 0; + root_id = root_node->node_id; irm_id = card->irm_node->node_id; local_id = card->local_node->node_id; @@ -276,8 +283,15 @@ static void fw_card_bm_work(struct work_struct *work) if (!card->irm_node->link_on) { new_root_id = local_id; - fw_notify("IRM has link off, making local node (%02x) root.\n", - new_root_id); + fw_notify("%s, making local node (%02x) root.\n", + "IRM has link off", new_root_id); + goto pick_me; + } + + if (irm_is_1394_1995_only) { + new_root_id = local_id; + fw_notify("%s, making local node (%02x) root.\n", + "IRM is not 1394a compliant", new_root_id); goto pick_me; } @@ -316,8 +330,8 @@ static void fw_card_bm_work(struct work_struct *work) * root, and thus, IRM. */ new_root_id = local_id; - fw_notify("BM lock failed, making local node (%02x) root.\n", - new_root_id); + fw_notify("%s, making local node (%02x) root.\n", + "BM lock failed", new_root_id); goto pick_me; } } else if (card->bm_generation != generation) { |