From 4c55523e600ee762c2b00b1ade4c5a82b57d07aa Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Thu, 5 Jun 2008 13:08:35 +0200 Subject: [PATCH] libertas: check for old, unsupported hardware Signed-off-by: Holger Schurig Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_cs.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 6870276259e9..9d6ca7fe9539 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -268,6 +268,12 @@ static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 r #define IF_CS_SCRATCH_BOOT_OK 0x00 #define IF_CS_SCRATCH_HELPER_OK 0x5a +/* + * Used to detect ancient chips: + */ +#define IF_CS_PRODUCT_ID 0x0000001C +#define IF_CS_CF8385_B1_REV 0x12 + /********************************************************************/ /* I/O and interrupt handling */ @@ -861,6 +867,12 @@ static int if_cs_probe(struct pcmcia_device *p_dev) p_dev->irq.AssignedIRQ, p_dev->io.BasePort1, p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1); + /* Check if we have a current silicon */ + if (if_cs_read8(card, IF_CS_PRODUCT_ID) < IF_CS_CF8385_B1_REV) { + lbs_pr_err("old chips like 8385 rev B1 aren't supported\n"); + ret = -ENODEV; + goto out2; + } /* Load the firmware early, before calling into libertas.ko */ ret = if_cs_prog_helper(card); -- 2.39.5