From patchwork Wed Sep 15 16:25:57 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dominik Brodowski X-Patchwork-Id: 64840 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 9979FB70D1 for ; Thu, 16 Sep 2010 02:30:44 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754586Ab0IOQaI (ORCPT ); Wed, 15 Sep 2010 12:30:08 -0400 Received: from isilmar-3.linta.de ([188.40.101.200]:36624 "EHLO linta.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752681Ab0IOQaH (ORCPT ); Wed, 15 Sep 2010 12:30:07 -0400 Received: (qmail 19290 invoked from network); 15 Sep 2010 16:30:03 -0000 Received: from p54a03786.dip.t-dialin.net (HELO comet.dominikbrodowski.net) (brodo@84.160.55.134) by isilmar-3.linta.de with (DHE-RSA-AES256-SHA encrypted) SMTP; 15 Sep 2010 16:30:03 -0000 Received: by comet.dominikbrodowski.net (Postfix, from userid 1000) id 033C980233; Wed, 15 Sep 2010 18:27:32 +0200 (CEST) From: Dominik Brodowski To: Cc: Dominik Brodowski , netdev@vger.kernel.org Subject: [PATCH 3/3] pcmcia pcnet_cs: try setting io_lines to 16 if card setup fails Date: Wed, 15 Sep 2010 18:25:57 +0200 Message-Id: <1284567957-15709-3-git-send-email-linux@dominikbrodowski.net> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <20100915162503.GA15043@comet.dominikbrodowski.net> References: <20100915162503.GA15043@comet.dominikbrodowski.net> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Some pcnet_cs compatible cards require an exact 16-lines match of the ioport areas specified in CIS, but set the "iolines" value in the CIS incorrectly. We can easily work around this issue -- same as we do in serial_cs -- by first trying setting iolines to the CIS-specified value, and then trying a 16-line match. Reported-and-tested-by: Wolfram Sang Hardware-supplied-by: Jochen Frieling CC: netdev@vger.kernel.org Signed-off-by: Dominik Brodowski --- drivers/net/pcmcia/pcnet_cs.c | 139 ++++++++++++++++++++++++---------------- 1 files changed, 83 insertions(+), 56 deletions(-) diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index 49279b0..f9b509a 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -508,7 +508,8 @@ static int pcnet_confcheck(struct pcmcia_device *p_dev, unsigned int vcc, void *priv_data) { - int *has_shmem = priv_data; + int *priv = priv_data; + int try = (*priv & 0x1); int i; cistpl_io_t *io = &cfg->io; @@ -525,77 +526,103 @@ static int pcnet_confcheck(struct pcmcia_device *p_dev, i = p_dev->resource[1]->end = 0; } - *has_shmem = ((cfg->mem.nwin == 1) && - (cfg->mem.win[0].len >= 0x4000)); + *priv &= ((cfg->mem.nwin == 1) && + (cfg->mem.win[0].len >= 0x4000)) ? 0x10 : ~0x10; + p_dev->resource[0]->start = io->win[i].base; p_dev->resource[0]->end = io->win[i].len; - p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; + if (!try) + p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; + else + p_dev->io_lines = 16; if (p_dev->resource[0]->end + p_dev->resource[1]->end >= 32) return try_io_port(p_dev); - return 0; + return -EINVAL; +} + +static hw_info_t *pcnet_try_config(struct pcmcia_device *link, + int *has_shmem, int try) +{ + struct net_device *dev = link->priv; + hw_info_t *local_hw_info; + pcnet_dev_t *info = PRIV(dev); + int priv = try; + int ret; + + ret = pcmcia_loop_config(link, pcnet_confcheck, &priv); + if (ret) { + dev_warn(&link->dev, "no useable port range found\n"); + return NULL; + } + *has_shmem = (priv & 0x10); + + if (!link->irq) + return NULL; + + if (resource_size(link->resource[1]) == 8) { + link->conf.Attributes |= CONF_ENABLE_SPKR; + link->conf.Status = CCSR_AUDIO_ENA; + } + if ((link->manf_id == MANFID_IBM) && + (link->card_id == PRODID_IBM_HOME_AND_AWAY)) + link->conf.ConfigIndex |= 0x10; + + ret = pcmcia_request_configuration(link, &link->conf); + if (ret) + return NULL; + + dev->irq = link->irq; + dev->base_addr = link->resource[0]->start; + + if (info->flags & HAS_MISC_REG) { + if ((if_port == 1) || (if_port == 2)) + dev->if_port = if_port; + else + dev_notice(&link->dev, "invalid if_port requested\n"); + } else + dev->if_port = 0; + + if ((link->conf.ConfigBase == 0x03c0) && + (link->manf_id == 0x149) && (link->card_id == 0xc1ab)) { + dev_info(&link->dev, + "this is an AX88190 card - use axnet_cs instead.\n"); + return NULL; + } + + local_hw_info = get_hwinfo(link); + if (!local_hw_info) + local_hw_info = get_prom(link); + if (!local_hw_info) + local_hw_info = get_dl10019(link); + if (!local_hw_info) + local_hw_info = get_ax88190(link); + if (!local_hw_info) + local_hw_info = get_hwired(link); + + return local_hw_info; } static int pcnet_config(struct pcmcia_device *link) { struct net_device *dev = link->priv; pcnet_dev_t *info = PRIV(dev); - int ret, start_pg, stop_pg, cm_offset; + int start_pg, stop_pg, cm_offset; int has_shmem = 0; hw_info_t *local_hw_info; dev_dbg(&link->dev, "pcnet_config\n"); - ret = pcmcia_loop_config(link, pcnet_confcheck, &has_shmem); - if (ret) - goto failed; - - if (!link->irq) - goto failed; - - if (resource_size(link->resource[1]) == 8) { - link->conf.Attributes |= CONF_ENABLE_SPKR; - link->conf.Status = CCSR_AUDIO_ENA; - } - if ((link->manf_id == MANFID_IBM) && - (link->card_id == PRODID_IBM_HOME_AND_AWAY)) - link->conf.ConfigIndex |= 0x10; - - ret = pcmcia_request_configuration(link, &link->conf); - if (ret) - goto failed; - dev->irq = link->irq; - dev->base_addr = link->resource[0]->start; - if (info->flags & HAS_MISC_REG) { - if ((if_port == 1) || (if_port == 2)) - dev->if_port = if_port; - else - printk(KERN_NOTICE "pcnet_cs: invalid if_port requested\n"); - } else { - dev->if_port = 0; - } - - if ((link->conf.ConfigBase == 0x03c0) && - (link->manf_id == 0x149) && (link->card_id == 0xc1ab)) { - printk(KERN_INFO "pcnet_cs: this is an AX88190 card!\n"); - printk(KERN_INFO "pcnet_cs: use axnet_cs instead.\n"); - goto failed; - } - - local_hw_info = get_hwinfo(link); - if (local_hw_info == NULL) - local_hw_info = get_prom(link); - if (local_hw_info == NULL) - local_hw_info = get_dl10019(link); - if (local_hw_info == NULL) - local_hw_info = get_ax88190(link); - if (local_hw_info == NULL) - local_hw_info = get_hwired(link); - - if (local_hw_info == NULL) { - printk(KERN_NOTICE "pcnet_cs: unable to read hardware net" - " address for io base %#3lx\n", dev->base_addr); - goto failed; + local_hw_info = pcnet_try_config(link, &has_shmem, 0); + if (!local_hw_info) { + /* check whether forcing io_lines to 16 helps... */ + pcmcia_disable_device(link); + local_hw_info = pcnet_try_config(link, &has_shmem, 1); + if (local_hw_info == NULL) { + dev_notice(&link->dev, "unable to read hardware net" + " address for io base %#3lx\n", dev->base_addr); + goto failed; + } } info->flags = local_hw_info->flags;