From patchwork Sat Dec 7 20:47:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Apitzsch_via_B4_Relay?= X-Patchwork-Id: 848383 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EFBC6158874; Sat, 7 Dec 2024 20:48:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733604507; cv=none; b=sTlPH1nWSG+5it8jcBGNffYHjPbhyrYrLtNl2UTloPth09T58P8M7moORpIDCVM20w0kePxVfju/L+StP8HP6utASSb+8b7QFSl19HuIcpwM/AyC6ycXtSUHBSoZ4E04z4gOeIzkVIoZi3VG+AyL2hrLg6eV3DXJEaQuQQgwqBQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733604507; c=relaxed/simple; bh=luwQqnqN7G5H7tdJ3SkWlZVRYpsWa0cGgir4k6f0jI4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=CkH62CEWvXdLc4UXUshStgqzIx4Uvf9JySVCokfKTbHiUUQoTMR96U7gWNGv1or9ZyyMNR8wfR63TYFhQsKZ8JkQBeA1yKl0gH7kuVAYgoRjxt/Sp4aQGWXs8HNUyrSIP14Seuk0Az6+ri4tfVXucAJK/X5k2V3Df2QMK2sHo0c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bkn7lSw3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bkn7lSw3" Received: by smtp.kernel.org (Postfix) with ESMTPS id AA15DC4CEF1; Sat, 7 Dec 2024 20:48:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733604506; bh=luwQqnqN7G5H7tdJ3SkWlZVRYpsWa0cGgir4k6f0jI4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=bkn7lSw3+uZ6bABnqHTVTQXk3iSz0pgHAUURaD0sW8CCGdji3xvn8Cy3oiyOjjC/F zXzC9TG4ndThwwImENCsZM77kUxBm9W9sM49PrLB6/GtNqjN1YmXsxtxYqvXoV/WGe A+g3e0r+nn3J3+MEUdXrn8RfRM3ZLeFFHZ9KMp/6bhbwIBoy7Ay1mzle4Si1lK2I92 lC7wuz2gDSei64Rq4msbVwjBL3RObTsP6qDo9wE2FZnvWABjRK82fKlwe1Ru1nqhq7 pmDCZfoIww5fEeM6u3yrBTWOM0z7is1q/liToQeEA2k5ZcIQtvrtzBiOGEXDq8Yqy6 zAT2pt+5ogbTg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0411E7717F; Sat, 7 Dec 2024 20:48:26 +0000 (UTC) From: =?utf-8?q?Andr=C3=A9_Apitzsch_via_B4_Relay?= Date: Sat, 07 Dec 2024 21:47:58 +0100 Subject: [PATCH v3 09/12] media: i2c: imx214: Add analogue/digital gain control Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241207-imx214-v3-9-ab60af7ee915@apitzsch.eu> References: <20241207-imx214-v3-0-ab60af7ee915@apitzsch.eu> In-Reply-To: <20241207-imx214-v3-0-ab60af7ee915@apitzsch.eu> To: Ricardo Ribalda , Sakari Ailus , Mauro Carvalho Chehab Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Dave Stevenson , Vincent Knecht , =?utf-8?q?Andr=C3=A9_Apitzsch?= , Ricardo Ribalda X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1733604504; l=4360; i=git@apitzsch.eu; s=20240325; h=from:subject:message-id; bh=cw+yJDd3SjuLV2GaKcypZv6W/vwBf+RRXM5LyGnTosw=; b=oXE5IeRdFzkQEqr9PWEG881V1OChx7Nea97MmCN8h3KrVK1cZkH++st3taOg/AWhTdXpXQq1k ZDXTBFgxvLeCAF3E+ichgscIuXvNJieohBvBp1Bb/hl6CHY7d2nXmzl X-Developer-Key: i=git@apitzsch.eu; a=ed25519; pk=wxovcZRfvNYBMcTw4QFFtNEP4qv39gnBfnfyImXZxiU= X-Endpoint-Received: by B4 Relay for git@apitzsch.eu/20240325 with auth_id=142 X-Original-From: =?utf-8?q?Andr=C3=A9_Apitzsch?= Reply-To: git@apitzsch.eu From: André Apitzsch The imx214 sensor supports analogue gain up to 8x and digital gain up to 16x. Implement the corresponding controls in the driver. Default gain values are not modified by this patch. Acked-by: Ricardo Ribalda Signed-off-by: André Apitzsch --- drivers/media/i2c/imx214.c | 53 +++++++++++++++++++++++++++++++++------------- 1 file changed, 38 insertions(+), 15 deletions(-) diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index f7715b13edd09169d81fbbd04dc231be37cc59f0..a35e4e60e55c2b9d9e3090c98e695f78d099cf44 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -52,12 +52,20 @@ /* Analog gain control */ #define IMX214_REG_ANALOG_GAIN CCI_REG16(0x0204) #define IMX214_REG_SHORT_ANALOG_GAIN CCI_REG16(0x0216) +#define IMX214_ANA_GAIN_MIN 0 +#define IMX214_ANA_GAIN_MAX 448 +#define IMX214_ANA_GAIN_STEP 1 +#define IMX214_ANA_GAIN_DEFAULT 0x0 /* Digital gain control */ #define IMX214_REG_DIG_GAIN_GREENR CCI_REG16(0x020e) #define IMX214_REG_DIG_GAIN_RED CCI_REG16(0x0210) #define IMX214_REG_DIG_GAIN_BLUE CCI_REG16(0x0212) #define IMX214_REG_DIG_GAIN_GREENB CCI_REG16(0x0214) +#define IMX214_DGTL_GAIN_MIN 0x0100 +#define IMX214_DGTL_GAIN_MAX 0x0fff +#define IMX214_DGTL_GAIN_DEFAULT 0x0100 +#define IMX214_DGTL_GAIN_STEP 1 #define IMX214_REG_ORIENTATION CCI_REG8(0x0101) @@ -280,13 +288,6 @@ static const struct cci_reg_sequence mode_4096x2304[] = { { IMX214_REG_SHORT_EXPOSURE, 500 }, - { IMX214_REG_ANALOG_GAIN, 0 }, - { IMX214_REG_DIG_GAIN_GREENR, 256 }, - { IMX214_REG_DIG_GAIN_RED, 256 }, - { IMX214_REG_DIG_GAIN_BLUE, 256 }, - { IMX214_REG_DIG_GAIN_GREENB, 256 }, - { IMX214_REG_SHORT_ANALOG_GAIN, 0 }, - { CCI_REG8(0x4170), 0x00 }, { CCI_REG8(0x4171), 0x10 }, { CCI_REG8(0x4176), 0x00 }, @@ -350,13 +351,6 @@ static const struct cci_reg_sequence mode_1920x1080[] = { { IMX214_REG_SHORT_EXPOSURE, 500 }, - { IMX214_REG_ANALOG_GAIN, 0 }, - { IMX214_REG_DIG_GAIN_GREENR, 256 }, - { IMX214_REG_DIG_GAIN_RED, 256 }, - { IMX214_REG_DIG_GAIN_BLUE, 256 }, - { IMX214_REG_DIG_GAIN_GREENB, 256 }, - { IMX214_REG_SHORT_ANALOG_GAIN, 0 }, - { CCI_REG8(0x4170), 0x00 }, { CCI_REG8(0x4171), 0x10 }, { CCI_REG8(0x4176), 0x00 }, @@ -747,6 +741,18 @@ static int imx214_entity_init_state(struct v4l2_subdev *subdev, return 0; } +static int imx214_update_digital_gain(struct imx214 *imx214, u32 val) +{ + int ret = 0; + + cci_write(imx214->regmap, IMX214_REG_DIG_GAIN_GREENR, val, &ret); + cci_write(imx214->regmap, IMX214_REG_DIG_GAIN_RED, val, &ret); + cci_write(imx214->regmap, IMX214_REG_DIG_GAIN_BLUE, val, &ret); + cci_write(imx214->regmap, IMX214_REG_DIG_GAIN_GREENB, val, &ret); + + return ret; +} + static int imx214_set_ctrl(struct v4l2_ctrl *ctrl) { struct imx214 *imx214 = container_of(ctrl->handler, @@ -778,6 +784,15 @@ static int imx214_set_ctrl(struct v4l2_ctrl *ctrl) return 0; switch (ctrl->id) { + case V4L2_CID_ANALOGUE_GAIN: + cci_write(imx214->regmap, IMX214_REG_ANALOG_GAIN, + ctrl->val, &ret); + cci_write(imx214->regmap, IMX214_REG_SHORT_ANALOG_GAIN, + ctrl->val, &ret); + break; + case V4L2_CID_DIGITAL_GAIN: + ret = imx214_update_digital_gain(imx214, ctrl->val); + break; case V4L2_CID_EXPOSURE: cci_write(imx214->regmap, IMX214_REG_EXPOSURE, ctrl->val, &ret); break; @@ -824,7 +839,7 @@ static int imx214_ctrls_init(struct imx214 *imx214) return ret; ctrl_hdlr = &imx214->ctrls; - ret = v4l2_ctrl_handler_init(&imx214->ctrls, 10); + ret = v4l2_ctrl_handler_init(&imx214->ctrls, 12); if (ret) return ret; @@ -872,6 +887,14 @@ static int imx214_ctrls_init(struct imx214 *imx214) IMX214_EXPOSURE_STEP, exposure_def); + v4l2_ctrl_new_std(ctrl_hdlr, &imx214_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + IMX214_ANA_GAIN_MIN, IMX214_ANA_GAIN_MAX, + IMX214_ANA_GAIN_STEP, IMX214_ANA_GAIN_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx214_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + IMX214_DGTL_GAIN_MIN, IMX214_DGTL_GAIN_MAX, + IMX214_DGTL_GAIN_STEP, IMX214_DGTL_GAIN_DEFAULT); + imx214->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx214_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); if (imx214->hflip)