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authorHolger Schurig <hs4233@mail.mn-solutions.de>2008-06-05 13:08:35 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-06-14 12:18:03 -0400
commit4c55523e600ee762c2b00b1ade4c5a82b57d07aa (patch)
tree186c6a2315b7381b0fbc63b4bcece82a3b57f601 /drivers/net/wireless/libertas
parent5314325692239a977a58fc796b4f4fb783643012 (diff)
libertas: check for old, unsupported hardware
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas')
-rw-r--r--drivers/net/wireless/libertas/if_cs.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 6870276259e..9d6ca7fe953 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);