diff options
| author | Andres Salomon <dilinger@queued.net> | 2011-09-08 17:35:17 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-09-14 13:57:00 -0400 |
| commit | 55768fa6d9462c18c1ce3c862db3bf55bac3b1c7 (patch) | |
| tree | 6019a6189cc30d8d02f54506dc0071a57e9c4285 | |
| parent | fd235913f9d86fde954f7e1215bd0921ee70cb19 (diff) | |
libertas: prioritize usb8388_olpc.bin firmware on OLPC machines
Normally, the v9 firmware will be loaded if it's available. However, on
OLPC XO-1 machines, the olpc-specific firmware supports extra functionality.
This makes the libertas driver attempt to load the custom firmware first
if the machine is an OLPC machine; if that fails (or it's not an OLPC
machine), fall back to attempting to load the other firmwares.
usb8388_olpc.bin is currently found in the linux-firmware repository.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/libertas/if_usb.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index 0c846f5a646..8147f1e2a0b 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -973,6 +973,23 @@ static const struct { { MODEL_8682, "libertas/usb8682.bin" } }; +#ifdef CONFIG_OLPC + +static int try_olpc_fw(struct if_usb_card *cardp) +{ + int retval = -ENOENT; + + /* try the OLPC firmware first; fall back to fw_table list */ + if (machine_is_olpc() && cardp->model == MODEL_8388) + retval = request_firmware(&cardp->fw, + "libertas/usb8388_olpc.bin", &cardp->udev->dev); + return retval; +} + +#else +static int try_olpc_fw(struct if_usb_card *cardp) { return -ENOENT; } +#endif /* !CONFIG_OLPC */ + static int get_fw(struct if_usb_card *cardp, const char *fwname) { int i; @@ -981,6 +998,10 @@ static int get_fw(struct if_usb_card *cardp, const char *fwname) if (fwname) return request_firmware(&cardp->fw, fwname, &cardp->udev->dev); + /* Handle OLPC firmware */ + if (try_olpc_fw(cardp) == 0) + return 0; + /* Otherwise search for firmware to use */ for (i = 0; i < ARRAY_SIZE(fw_table); i++) { if (fw_table[i].model != cardp->model) |