From patchwork Mon Apr 14 08:58:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 3978581 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2DA4B9F336 for ; Mon, 14 Apr 2014 09:01:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6171F201BC for ; Mon, 14 Apr 2014 09:01:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7CDF2201B4 for ; Mon, 14 Apr 2014 09:01:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752379AbaDNJBU (ORCPT ); Mon, 14 Apr 2014 05:01:20 -0400 Received: from mga09.intel.com ([134.134.136.24]:3996 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754546AbaDNJBD (ORCPT ); Mon, 14 Apr 2014 05:01:03 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 14 Apr 2014 01:56:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,856,1389772800"; d="scan'208";a="520339881" Received: from paasikivi.fi.intel.com ([10.237.72.42]) by orsmga002.jf.intel.com with ESMTP; 14 Apr 2014 02:00:57 -0700 Received: from nauris.fi.intel.com (nauris.localdomain [192.168.240.2]) by paasikivi.fi.intel.com (Postfix) with ESMTP id C7F5C209A7 for ; Mon, 14 Apr 2014 12:00:56 +0300 (EEST) Received: by nauris.fi.intel.com (Postfix, from userid 1000) id F14BA20112; Mon, 14 Apr 2014 12:01:22 +0300 (EEST) From: Sakari Ailus To: linux-media@vger.kernel.org Subject: [PATCH v2 20/21] smiapp: Define macros for obtaining properties of register definitions Date: Mon, 14 Apr 2014 11:58:45 +0300 Message-Id: <1397465926-29724-21-git-send-email-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1397465926-29724-1-git-send-email-sakari.ailus@linux.intel.com> References: <1397465926-29724-1-git-send-email-sakari.ailus@linux.intel.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The register address, width and flags are encoded as a 32-bit value. Add macros for obtaining these separately. Use the macros in register access functions. Signed-off-by: Sakari Ailus --- drivers/media/i2c/smiapp/smiapp-regs.c | 13 +++++++------ drivers/media/i2c/smiapp/smiapp-regs.h | 4 ++++ 2 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/media/i2c/smiapp/smiapp-regs.c b/drivers/media/i2c/smiapp/smiapp-regs.c index c2db205..47b9e4c 100644 --- a/drivers/media/i2c/smiapp/smiapp-regs.c +++ b/drivers/media/i2c/smiapp/smiapp-regs.c @@ -165,7 +165,7 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val, bool only8) { struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int len = (u8)(reg >> 16); + u8 len = SMIAPP_REG_WIDTH(reg); int rval; if (len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT @@ -173,9 +173,10 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val, return -EINVAL; if (len == SMIAPP_REG_8BIT || !only8) - rval = ____smiapp_read(sensor, (u16)reg, len, val); + rval = ____smiapp_read(sensor, SMIAPP_REG_ADDR(reg), len, val); else - rval = ____smiapp_read_8only(sensor, (u16)reg, len, val); + rval = ____smiapp_read_8only(sensor, SMIAPP_REG_ADDR(reg), len, + val); if (rval < 0) return rval; @@ -208,9 +209,9 @@ int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val) struct i2c_msg msg; unsigned char data[6]; unsigned int retries; - unsigned int flags = reg >> 24; - unsigned int len = (u8)(reg >> 16); - u16 offset = reg; + u8 flags = SMIAPP_REG_FLAGS(reg); + u8 len = SMIAPP_REG_WIDTH(reg); + u16 offset = SMIAPP_REG_ADDR(reg); int r; if ((len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT && diff --git a/drivers/media/i2c/smiapp/smiapp-regs.h b/drivers/media/i2c/smiapp/smiapp-regs.h index 934130b..aeecab8 100644 --- a/drivers/media/i2c/smiapp/smiapp-regs.h +++ b/drivers/media/i2c/smiapp/smiapp-regs.h @@ -28,6 +28,10 @@ #include #include +#define SMIAPP_REG_ADDR(reg) ((u16)reg) +#define SMIAPP_REG_WIDTH(reg) ((u8)(reg >> 16)) +#define SMIAPP_REG_FLAGS(reg) ((u8)(reg >> 24)) + /* Use upper 8 bits of the type field for flags */ #define SMIAPP_REG_FLAG_FLOAT (1 << 24)