From dc7d243d75b906cc964c12caa3b2eebe953a69be Mon Sep 17 00:00:00 2001
From: Marek Vasut <marek.vasut@gmail.com>
Date: Tue, 24 Mar 2009 21:33:43 +0100
Subject: [PATCH] Add support for CF8381 WiFi card.
A detection function was added for identifying CF8381.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/libertas/if_cs.c | 34 +++++++++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index cedeac6322fe..2a5b083bf9bd 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -273,7 +273,28 @@ static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 r
*/
#define IF_CS_PRODUCT_ID 0x0000001C
#define IF_CS_CF8385_B1_REV 0x12
+#define IF_CS_CF8381_B3_REV 0x04
+/*
+ * Used to detect other cards than CF8385 since their revisions of silicon
+ * doesn't match those from CF8385, eg. CF8381 B3 works with this driver.
+ */
+#define CF8381_MANFID 0x02db
+#define CF8381_CARDID 0x6064
+#define CF8385_MANFID 0x02df
+#define CF8385_CARDID 0x8103
+
+static inline int if_cs_hw_is_cf8381(struct pcmcia_device *p_dev)
+{
+ return (p_dev->manf_id == CF8381_MANFID &&
+ p_dev->card_id == CF8381_CARDID);
+}
+
+static inline int if_cs_hw_is_cf8385(struct pcmcia_device *p_dev)
+{
+ return (p_dev->manf_id == CF8385_MANFID &&
+ p_dev->card_id == CF8385_CARDID);
+}
/********************************************************************/
/* I/O and interrupt handling */
@@ -757,6 +778,7 @@ static void if_cs_release(struct pcmcia_device *p_dev)
static int if_cs_probe(struct pcmcia_device *p_dev)
{
int ret = -ENOMEM;
+ unsigned int prod_id;
struct lbs_private *priv;
struct if_cs_card *card;
/* CIS parsing */
@@ -859,7 +881,14 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
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) {
+ prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID);
+ if (if_cs_hw_is_cf8381(p_dev) && prod_id < IF_CS_CF8381_B3_REV) {
+ lbs_pr_err("old chips like 8381 rev B3 aren't supported\n");
+ ret = -ENODEV;
+ goto out2;
+ }
+
+ if (if_cs_hw_is_cf8385(p_dev) && prod_id < IF_CS_CF8385_B1_REV) {
lbs_pr_err("old chips like 8385 rev B1 aren't supported\n");
ret = -ENODEV;
goto out2;
@@ -950,7 +979,8 @@ static void if_cs_detach(struct pcmcia_device *p_dev)
/********************************************************************/
static struct pcmcia_device_id if_cs_ids[] = {
- PCMCIA_DEVICE_MANF_CARD(0x02df, 0x8103),
+ PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID),
+ PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID),
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
--
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