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authorStefan Richter <stefanr@s5r6.in-berlin.de>2007-10-21 10:43:11 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2007-10-22 19:48:55 +0200
commitc74e92c209cf30ae6003e042e7c017eb6c370b64 (patch)
tree8448c05baad9d41d42f792441eceb5d2ac2a04b7 /drivers/firewire
parent55b70a0300b873c0ec7ea6e33752af56f41250ce (diff)
firewire: fw-ohci: log a note about unsupported features
because there seems to be more time needed to implement this. Also, change related error return values to more appropriate ones. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire')
-rw-r--r--drivers/firewire/fw-ohci.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index 2f307c4df335..e4b9a7d17afc 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -1459,7 +1459,7 @@ ohci_allocate_iso_context(struct fw_card *card, int type, size_t header_size)
/* FIXME: We need a fallback for pre 1.1 OHCI. */
if (callback == handle_ir_dualbuffer_packet &&
ohci->version < OHCI_VERSION_1_1)
- return ERR_PTR(-EINVAL);
+ return ERR_PTR(-ENOSYS);
spin_lock_irqsave(&ohci->lock, flags);
index = ffs(*mask) - 1;
@@ -1778,7 +1778,7 @@ ohci_queue_iso(struct fw_iso_context *base,
buffer, payload);
else
/* FIXME: Implement fallback for OHCI 1.0 controllers. */
- return -EINVAL;
+ return -ENOSYS;
}
static const struct fw_card_driver ohci_driver = {
@@ -1898,7 +1898,12 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent)
ohci->version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
fw_notify("Added fw-ohci device %s, OHCI version %x.%x\n",
dev->dev.bus_id, ohci->version >> 16, ohci->version & 0xff);
-
+ if (ohci->version < OHCI_VERSION_1_1) {
+ fw_notify(" Isochronous I/O is not yet implemented for "
+ "OHCI 1.0 chips.\n");
+ fw_notify(" Cameras, audio devices etc. won't work on "
+ "this controller with this driver version.\n");
+ }
return 0;
fail_self_id: