From patchwork Tue Aug 8 13:30:13 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 9888203 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 91DF560363 for ; Tue, 8 Aug 2017 13:32:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 84EED208C2 for ; Tue, 8 Aug 2017 13:32:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 79B7828914; Tue, 8 Aug 2017 13:32:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2690F208C2 for ; Tue, 8 Aug 2017 13:32:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752533AbdHHNcP (ORCPT ); Tue, 8 Aug 2017 09:32:15 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:40326 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752408AbdHHNbA (ORCPT ); Tue, 8 Aug 2017 09:31:00 -0400 Received: from mms-0439.qualcomm.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 5578C4F891; Tue, 8 Aug 2017 16:30:53 +0300 (EEST) From: Todor Tomov To: mchehab@kernel.org, hans.verkuil@cisco.com, s.nawrocki@samsung.com, sakari.ailus@iki.fi, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: Todor Tomov Subject: [PATCH v4 16/21] camss: vfe: Configure scaler module in VFE Date: Tue, 8 Aug 2017 16:30:13 +0300 Message-Id: <1502199018-28250-17-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1502199018-28250-1-git-send-email-todor.tomov@linaro.org> References: <1502199018-28250-1-git-send-email-todor.tomov@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add scaler module configuration support to be able to apply scaling. Signed-off-by: Todor Tomov --- drivers/media/platform/qcom/camss-8x16/camss-vfe.c | 59 +++++++++++++++++----- 1 file changed, 46 insertions(+), 13 deletions(-) diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c index c6b230b..cc1fc68 100644 --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c @@ -198,13 +198,16 @@ #define VFE_0_DEMUX_ODD_CFG_PATTERN_UYVY 0xc9ca #define VFE_0_DEMUX_ODD_CFG_PATTERN_VYUY 0xcac9 +#define VFE_0_SCALE_ENC_Y_CFG 0x75c +#define VFE_0_SCALE_ENC_Y_H_IMAGE_SIZE 0x760 +#define VFE_0_SCALE_ENC_Y_H_PHASE 0x764 +#define VFE_0_SCALE_ENC_Y_V_IMAGE_SIZE 0x76c +#define VFE_0_SCALE_ENC_Y_V_PHASE 0x770 #define VFE_0_SCALE_ENC_CBCR_CFG 0x778 #define VFE_0_SCALE_ENC_CBCR_H_IMAGE_SIZE 0x77c #define VFE_0_SCALE_ENC_CBCR_H_PHASE 0x780 -#define VFE_0_SCALE_ENC_CBCR_H_PAD 0x78c #define VFE_0_SCALE_ENC_CBCR_V_IMAGE_SIZE 0x790 #define VFE_0_SCALE_ENC_CBCR_V_PHASE 0x794 -#define VFE_0_SCALE_ENC_CBCR_V_PAD 0x7a0 #define VFE_0_CLAMP_ENC_MAX_CFG 0x874 #define VFE_0_CLAMP_ENC_MAX_CFG_CH0 (0xff << 0) @@ -670,6 +673,20 @@ static void vfe_set_demux_cfg(struct vfe_device *vfe, struct vfe_line *line) writel_relaxed(odd_cfg, vfe->base + VFE_0_DEMUX_ODD_CFG); } +static inline u8 vfe_calc_interp_reso(u16 input, u16 output) +{ + if (input / output >= 16) + return 0; + + if (input / output >= 8) + return 1; + + if (input / output >= 4) + return 2; + + return 3; +} + static void vfe_set_scale_cfg(struct vfe_device *vfe, struct vfe_line *line) { u32 p = line->video_out.active_fmt.fmt.pix_mp.pixelformat; @@ -678,35 +695,51 @@ static void vfe_set_scale_cfg(struct vfe_device *vfe, struct vfe_line *line) u8 interp_reso; u32 phase_mult; + writel_relaxed(0x3, vfe->base + VFE_0_SCALE_ENC_Y_CFG); + + input = line->fmt[MSM_VFE_PAD_SINK].width; + output = line->compose.width; + reg = (output << 16) | input; + writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_H_IMAGE_SIZE); + + interp_reso = vfe_calc_interp_reso(input, output); + phase_mult = input * (1 << (13 + interp_reso)) / output; + reg = (interp_reso << 20) | phase_mult; + writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_H_PHASE); + + input = line->fmt[MSM_VFE_PAD_SINK].height; + output = line->compose.height; + reg = (output << 16) | input; + writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_V_IMAGE_SIZE); + + interp_reso = vfe_calc_interp_reso(input, output); + phase_mult = input * (1 << (13 + interp_reso)) / output; + reg = (interp_reso << 20) | phase_mult; + writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_V_PHASE); + writel_relaxed(0x3, vfe->base + VFE_0_SCALE_ENC_CBCR_CFG); input = line->fmt[MSM_VFE_PAD_SINK].width; - output = line->fmt[MSM_VFE_PAD_SRC].width / 2; + output = line->compose.width / 2; reg = (output << 16) | input; writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_H_IMAGE_SIZE); - interp_reso = 3; + interp_reso = vfe_calc_interp_reso(input, output); phase_mult = input * (1 << (13 + interp_reso)) / output; reg = (interp_reso << 20) | phase_mult; writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_H_PHASE); - reg = input; - writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_H_PAD); - input = line->fmt[MSM_VFE_PAD_SINK].height; - output = line->fmt[MSM_VFE_PAD_SRC].height; + output = line->compose.height; if (p == V4L2_PIX_FMT_NV12 || p == V4L2_PIX_FMT_NV21) - output = line->fmt[MSM_VFE_PAD_SRC].height / 2; + output = line->compose.height / 2; reg = (output << 16) | input; writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_V_IMAGE_SIZE); - interp_reso = 3; + interp_reso = vfe_calc_interp_reso(input, output); phase_mult = input * (1 << (13 + interp_reso)) / output; reg = (interp_reso << 20) | phase_mult; writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_V_PHASE); - - reg = input; - writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_V_PAD); } static void vfe_set_clamp_cfg(struct vfe_device *vfe)