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Fri, 22 Apr 2022 01:42:13 +0000 From: Ming Qian To: mchehab@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, mirela.rabulea@oss.nxp.com Cc: hverkuil-cisco@xs4all.nl, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3] media: imx-jpeg: Encoder support to set jpeg quality Date: Fri, 22 Apr 2022 09:41:57 +0800 Message-Id: <20220422014157.8200-1-ming.qian@nxp.com> X-Mailer: git-send-email 2.35.1 X-ClientProxiedBy: SI2P153CA0023.APCP153.PROD.OUTLOOK.COM (2603:1096:4:190::6) To AM6PR04MB6341.eurprd04.prod.outlook.com (2603:10a6:20b:d8::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e1f5f31a-67f5-40ba-ea97-08da240152cc X-MS-TrafficTypeDiagnostic: AM9PR04MB8145:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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- - /* quality factor */ - writel(0x4b, reg + CAST_QUALITY); } void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg) @@ -114,6 +111,14 @@ void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg) writel(0x140, reg + CAST_MODE); } +void mxc_jpeg_enc_set_quality(struct device *dev, void __iomem *reg, u8 quality) +{ + dev_dbg(dev, "CAST Encoder Quality %d...\n", quality); + + /* quality factor */ + writel(quality, reg + CAST_QUALITY); +} + void mxc_jpeg_dec_mode_go(struct device *dev, void __iomem *reg) { dev_dbg(dev, "CAST Decoder GO...\n"); diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h index ae70d3a0dc24..356e40140987 100644 --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h @@ -119,6 +119,7 @@ int mxc_jpeg_enable(void __iomem *reg); void wait_frmdone(struct device *dev, void __iomem *reg); void mxc_jpeg_enc_mode_conf(struct device *dev, void __iomem *reg); void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg); +void mxc_jpeg_enc_set_quality(struct device *dev, void __iomem *reg, u8 quality); void mxc_jpeg_dec_mode_go(struct device *dev, void __iomem *reg); int mxc_jpeg_get_slot(void __iomem *reg); u32 mxc_jpeg_get_offset(void __iomem *reg, int slot); diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c index 0c3a1efbeae7..1bd245ba00e2 100644 --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c @@ -624,6 +624,7 @@ static irqreturn_t mxc_jpeg_dec_irq(int irq, void *priv) ctx->enc_state == MXC_JPEG_ENC_CONF) { ctx->enc_state = MXC_JPEG_ENCODING; dev_dbg(dev, "Encoder config finished. Start encoding...\n"); + mxc_jpeg_enc_set_quality(dev, reg, ctx->jpeg_quality); mxc_jpeg_enc_mode_go(dev, reg); goto job_unlock; } @@ -1563,6 +1564,51 @@ static void mxc_jpeg_set_default_params(struct mxc_jpeg_ctx *ctx) } } +static int mxc_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct mxc_jpeg_ctx *ctx = + container_of(ctrl->handler, struct mxc_jpeg_ctx, ctrl_handler); + + switch (ctrl->id) { + case V4L2_CID_JPEG_COMPRESSION_QUALITY: + ctx->jpeg_quality = ctrl->val; + break; + default: + dev_err(ctx->mxc_jpeg->dev, "Invalid control, id = %d, val = %d\n", + ctrl->id, ctrl->val); + return -EINVAL; + } + + return 0; +} + +static const struct v4l2_ctrl_ops mxc_jpeg_ctrl_ops = { + .s_ctrl = mxc_jpeg_s_ctrl, +}; + +static void mxc_jpeg_encode_ctrls(struct mxc_jpeg_ctx *ctx) +{ + v4l2_ctrl_new_std(&ctx->ctrl_handler, &mxc_jpeg_ctrl_ops, + V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, 100, 1, 75); +} + +static int mxc_jpeg_ctrls_setup(struct mxc_jpeg_ctx *ctx) +{ + v4l2_ctrl_handler_init(&ctx->ctrl_handler, 2); + + if (ctx->mxc_jpeg->mode == MXC_JPEG_ENCODE) + mxc_jpeg_encode_ctrls(ctx); + + if (ctx->ctrl_handler.error) { + int err = ctx->ctrl_handler.error; + + v4l2_ctrl_handler_free(&ctx->ctrl_handler); + return err; + } + + return v4l2_ctrl_handler_setup(&ctx->ctrl_handler); +} + static int mxc_jpeg_open(struct file *file) { struct mxc_jpeg_dev *mxc_jpeg = video_drvdata(file); @@ -1594,6 +1640,12 @@ static int mxc_jpeg_open(struct file *file) goto error; } + ret = mxc_jpeg_ctrls_setup(ctx); + if (ret) { + dev_err(ctx->mxc_jpeg->dev, "failed to setup mxc jpeg controls\n"); + goto err_ctrls_setup; + } + ctx->fh.ctrl_handler = &ctx->ctrl_handler; mxc_jpeg_set_default_params(ctx); ctx->slot = MXC_MAX_SLOTS; /* slot not allocated yet */ @@ -1605,6 +1657,8 @@ static int mxc_jpeg_open(struct file *file) return 0; +err_ctrls_setup: + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); error: v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); @@ -1962,6 +2016,8 @@ static int mxc_jpeg_subscribe_event(struct v4l2_fh *fh, return v4l2_event_subscribe(fh, sub, 0, NULL); case V4L2_EVENT_SOURCE_CHANGE: return v4l2_src_change_event_subscribe(fh, sub); + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subscribe_event(fh, sub); default: return -EINVAL; } @@ -2035,6 +2091,7 @@ static int mxc_jpeg_release(struct file *file) else dev_dbg(dev, "Release JPEG encoder instance on slot %d.", ctx->slot); + v4l2_ctrl_handler_free(&ctx->ctrl_handler); v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h index 9ae56e6e0fbe..9c9da32b2125 100644 --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h @@ -96,6 +96,8 @@ struct mxc_jpeg_ctx { unsigned int slot; unsigned int source_change; bool header_parsed; + struct v4l2_ctrl_handler ctrl_handler; + u8 jpeg_quality; }; struct mxc_jpeg_slot_data {