From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755214Ab0CCRSp (ORCPT ); Wed, 3 Mar 2010 12:18:45 -0500 Received: from mail.dev.rtsoft.ru ([213.79.90.226]:37357 "HELO mail.dev.rtsoft.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754876Ab0CCRRr (ORCPT ); Wed, 3 Mar 2010 12:17:47 -0500 Date: Wed, 3 Mar 2010 20:17:45 +0300 From: Anton Vorontsov To: Jeff Garzik Cc: Sergei Shtylyov , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 08/11] ahci: Introduce ahci_set_em_messages() Message-ID: <20100303171745.GH12362@oksana.dev.rtsoft.ru> References: <20100303171713.GA6322@oksana.dev.rtsoft.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20100303171713.GA6322@oksana.dev.rtsoft.ru> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Factor out some ahci_em_messages handling code from ahci_init_one(). We would like to reuse it for non-PCI devices. Signed-off-by: Anton Vorontsov --- drivers/ata/ahci.c | 41 ++++++++++++++++++++++++----------------- 1 files changed, 24 insertions(+), 17 deletions(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index f904683..4f05cf0 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -3231,6 +3231,29 @@ static inline void ahci_gtf_filter_workaround(struct ata_host *host) {} #endif +static void ahci_set_em_messages(struct ahci_host_priv *hpriv, + struct ata_port_info *pi) +{ + u8 messages; + void __iomem *mmio = hpriv->mmio; + u32 em_loc = readl(mmio + HOST_EM_LOC); + u32 em_ctl = readl(mmio + HOST_EM_CTL); + + if (!ahci_em_messages || !(hpriv->cap & HOST_CAP_EMS)) + return; + + messages = (em_ctl & EM_CTRL_MSG_TYPE) >> 16; + + /* we only support LED message type right now */ + if ((messages & 0x01) && (ahci_em_messages == 1)) { + /* store em_loc */ + hpriv->em_loc = ((em_loc >> 16) * 4); + pi->flags |= ATA_FLAG_EM; + if (!(em_ctl & EM_CTL_ALHD)) + pi->flags |= ATA_FLAG_SW_ACTIVITY; + } +} + static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; @@ -3334,23 +3357,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (hpriv->cap & HOST_CAP_PMP) pi.flags |= ATA_FLAG_PMP; - if (ahci_em_messages && (hpriv->cap & HOST_CAP_EMS)) { - u8 messages; - void __iomem *mmio = hpriv->mmio; - u32 em_loc = readl(mmio + HOST_EM_LOC); - u32 em_ctl = readl(mmio + HOST_EM_CTL); - - messages = (em_ctl & EM_CTRL_MSG_TYPE) >> 16; - - /* we only support LED message type right now */ - if ((messages & 0x01) && (ahci_em_messages == 1)) { - /* store em_loc */ - hpriv->em_loc = ((em_loc >> 16) * 4); - pi.flags |= ATA_FLAG_EM; - if (!(em_ctl & EM_CTL_ALHD)) - pi.flags |= ATA_FLAG_SW_ACTIVITY; - } - } + ahci_set_em_messages(hpriv, &pi); if (ahci_broken_system_poweroff(pdev)) { pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN; -- 1.7.0