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Date: Sun, 31 Jul 2011 00:03:00 -0700 From: Andres Salomon <dilinger@...ued.net> To: dcbw@...hat.com Cc: David Woodhouse <dwmw2@...radead.org>, libertas-dev@...ts.infradead.org, dsd@...top.org, cjb@...top.org, linux-kernel@...r.kernel.org Subject: [PATCH] libertas: prioritize usb8388_v5.bin firmware on OLPC machines Normally, the v9 firmware will be loaded if it's available. However, on OLPC XO-1 machines, the v5 firmware supports extra functionality. This makes the libertas driver attempt to load the v5 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. Signed-off-by: Andres Salomon <dilinger@...ued.net> --- drivers/net/wireless/libertas/if_usb.c | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index b5acc39..6a2e70e 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -973,6 +973,26 @@ static const struct { { MODEL_8682, "libertas/usb8682.bin" } }; +#ifdef CONFIG_OLPC + +/* default OLPC firmware to try; index into fw_table above */ +#define OLPC_FW 1 + +static int try_olpc_fw(struct if_usb_card *cardp) +{ + int retval = -ENOENT; + + /* try the OLPC firmware first; fall back to any others */ + if (machine_is_olpc()) + retval = request_firmware(&cardp->fw, + fw_table[OLPC_FW].fwname, &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 +1001,10 @@ 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) -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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