Return-path: Received: from mail-fx0-f158.google.com ([209.85.220.158]:56903 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757467AbZCWV6w convert rfc822-to-8bit (ORCPT ); Mon, 23 Mar 2009 17:58:52 -0400 Received: by fxm2 with SMTP id 2so2012200fxm.37 for ; Mon, 23 Mar 2009 14:58:49 -0700 (PDT) From: Marek Vasut To: Dan Williams Subject: Re: [PATCH] Marvell CF8381 Date: Mon, 23 Mar 2009 22:58:57 +0100 Cc: Holger Schurig , linux-wireless@vger.kernel.org, libertas-dev@lists.infradead.org References: <200903220127.21836.marek.vasut@gmail.com> <200903231327.18890.hs4233@mail.mn-solutions.de> <1237824927.14758.20.camel@localhost.localdomain> In-Reply-To: <1237824927.14758.20.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200903232258.57323.marek.vasut@gmail.com> (sfid-20090323_225855_409197_71D2D74A) Sender: linux-wireless-owner@vger.kernel.org List-ID: On Monday 23 of March 2009 17:15:27 Dan Williams wrote: > On Mon, 2009-03-23 at 13:27 +0100, Holger Schurig wrote: > > > - priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF; > > > + priv->regioncode = (le16_to_cpu(cmd.regioncode) & > > > > 0xFF00) >> 8; > > > > Hmm, the change that this breaks 8385 is quite high, maybe 100 > > percent. > > The cf8385-5.0.16.p0-26306 (gumstix) driver has: > > Adapter->RegionCode = wlan_le16_to_cpu(hwspec->RegionCode) >> 8; > > So it appears there's precedent for this even on 8385 parts. > > Dan > > > It could simply be the case that your firmware returns the value > > in a different order than mine. So we either need to test for the > > firmware version or for the hardware before getting the value via > > one or the other method. > > > > Maybe it's worthwhile to create some hw_is_8381() function and > > then do the things that need to be differently based on it's > > return value? > > > > > > > > The documentation for CMG_GET_HW_SPEC that I have says > > > > RegionCode UINT16 Set to 0 > > > > so I see no indicator that we have two 8 bit values here. But > > we've seen bugs in docs before :-) > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-wireless" > > in the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html Ok, so this should be it. I dropped the 8305 support since I found I have some issues with it still. >From 3ac8f34db9c4d96197fbdc2776ebbcd571e3fbbe Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 23 Mar 2009 22:55:51 +0100 Subject: [PATCH] Add support for CF8381 WiFi card. A detection function was added for identifying CF8381. Signed-off-by: --- drivers/net/wireless/libertas/if_cs.c | 24 +++++++++++++++++++++++- 1 files changed, 23 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 3f02e6a..56b6475 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -273,7 +273,20 @@ 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 + +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); +} /********************************************************************/ /* I/O and interrupt handling */ @@ -757,6 +770,7 @@ 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 +873,14 @@ 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 (prod_id < IF_CS_CF8385_B1_REV) { lbs_pr_err("old chips like 8385 rev B1 aren't supported\n"); ret = -ENODEV; goto out2; @@ -950,6 +971,7 @@ static void if_cs_detach(struct pcmcia_device *p_dev) /********************************************************************/ static struct pcmcia_device_id if_cs_ids[] = { + PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID), PCMCIA_DEVICE_MANF_CARD(0x02df, 0x8103), PCMCIA_DEVICE_NULL, }; -- 1.6.2