From patchwork Wed Nov 4 10:36:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 11880253 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4FB7114B4 for ; Wed, 4 Nov 2020 10:37:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37A1220786 for ; Wed, 4 Nov 2020 10:37:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729624AbgKDKh4 (ORCPT ); Wed, 4 Nov 2020 05:37:56 -0500 Received: from relay11.mail.gandi.net ([217.70.178.231]:54123 "EHLO relay11.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729638AbgKDKhz (ORCPT ); Wed, 4 Nov 2020 05:37:55 -0500 Received: from uno.lan (93-34-118-233.ip49.fastwebnet.it [93.34.118.233]) (Authenticated sender: jacopo@jmondi.org) by relay11.mail.gandi.net (Postfix) with ESMTPSA id 31992100006; Wed, 4 Nov 2020 10:37:51 +0000 (UTC) From: Jacopo Mondi To: linux-media@vger.kernel.org Cc: Jacopo Mondi , mchehab@kernel.org, sakari.ailus@linux.intel.com, hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, roman.kovalivskyi@globallogic.com, dafna.hirschfeld@collabora.com, dave.stevenson@raspberrypi.org, naush@raspberrypi.com, erosca@de.adit-jv.com, Dave Stevenson Subject: [PATCH v2 24/30] media: ov5647: Support V4L2_CID_VBLANK control Date: Wed, 4 Nov 2020 11:36:16 +0100 Message-Id: <20201104103622.595908-25-jacopo@jmondi.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201104103622.595908-1-jacopo@jmondi.org> References: <20201104103622.595908-1-jacopo@jmondi.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Dave Stevenson Adds vblank control to allow for frame rate control. Signed-off-by: Dave Stevenson Signed-off-by: Jacopo Mondi --- drivers/media/i2c/ov5647.c | 46 +++++++++++++++++++++++++++++++++++--- 1 file changed, 43 insertions(+), 3 deletions(-) diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c index 82813f548702e..f3962071f8a97 100644 --- a/drivers/media/i2c/ov5647.c +++ b/drivers/media/i2c/ov5647.c @@ -50,6 +50,8 @@ #define OV5647_REG_AEC_AGC 0x3503 #define OV5647_REG_GAIN_HI 0x350a #define OV5647_REG_GAIN_LO 0x350b +#define OV5647_REG_VTS_HI 0x380e +#define OV5647_REG_VTS_LO 0x380f #define OV5647_REG_FRAME_OFF_NUMBER 0x4202 #define OV5647_REG_MIPI_CTRL00 0x4800 #define OV5647_REG_MIPI_CTRL14 0x4814 @@ -68,6 +70,9 @@ #define OV5647_PIXEL_ARRAY_WIDTH 2592U #define OV5647_PIXEL_ARRAY_HEIGHT 1944U +#define OV5647_VBLANK_MIN 4 +#define OV5647_VTS_MAX 32767 + struct regval_list { u16 addr; u8 data; @@ -78,6 +83,7 @@ struct ov5647_mode { struct v4l2_rect crop; u64 pixel_rate; int hts; + int vts; const struct regval_list *reg_list; unsigned int num_regs; }; @@ -101,6 +107,7 @@ struct ov5647 { const struct ov5647_mode *current_mode; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *hblank; + struct v4l2_ctrl *vblank; }; static inline struct ov5647 *to_sensor(struct v4l2_subdev *sd) @@ -152,8 +159,6 @@ static const struct regval_list ov5647_640x480_sbggr8[] = { {0x3b07, 0x0c}, {0x380c, 0x07}, {0x380d, 0x68}, - {0x380e, 0x03}, - {0x380f, 0xd8}, {0x3814, 0x31}, {0x3815, 0x31}, {0x3708, 0x64}, @@ -589,6 +594,7 @@ static const struct ov5647_mode ov5647_sbggr8_modes[] = { }, .pixel_rate = 77291670, .hts = 1896, + .vts = 0x3d8, .reg_list = ov5647_640x480_sbggr8, .num_regs = ARRAY_SIZE(ov5647_640x480_sbggr8) }, @@ -612,6 +618,7 @@ static const struct ov5647_mode ov5647_sbggr10_modes[] = { }, .pixel_rate = 87500000, .hts = 2844, + .vts = 0x7b0, .reg_list = ov5647_2592x1944_sbggr10, .num_regs = ARRAY_SIZE(ov5647_2592x1944_sbggr10) }, @@ -632,6 +639,7 @@ static const struct ov5647_mode ov5647_sbggr10_modes[] = { }, .pixel_rate = 81666700, .hts = 2416, + .vts = 0x450, .reg_list = ov5647_1080p30_sbggr10, .num_regs = ARRAY_SIZE(ov5647_1080p30_sbggr10) }, @@ -652,6 +660,7 @@ static const struct ov5647_mode ov5647_sbggr10_modes[] = { }, .pixel_rate = 81666700, .hts = 1896, + .vts = 0x59b, .reg_list = ov5647_2x2binned_sbggr10, .num_regs = ARRAY_SIZE(ov5647_2x2binned_sbggr10) }, @@ -672,6 +681,7 @@ static const struct ov5647_mode ov5647_sbggr10_modes[] = { }, .pixel_rate = 55000000, .hts = 1852, + .vts = 0x1f8, .reg_list = ov5647_640x480_sbggr10, .num_regs = ARRAY_SIZE(ov5647_640x480_sbggr10) }, @@ -696,6 +706,22 @@ static const struct ov5647_format_list ov5647_formats[] = { #define OV5647_DEFAULT_MODE (&ov5647_formats[1].modes[3]) #define OV5647_DEFAULT_FORMAT (ov5647_formats[1].modes[3].format) +static int ov5647_write16(struct v4l2_subdev *sd, u16 reg, u16 val) +{ + unsigned char data[4] = { reg >> 8, reg & 0xff, val >> 8, val & 0xff}; + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + ret = i2c_master_send(client, data, 4); + if (ret < 0) { + dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n", + __func__, reg); + return ret; + } + + return 0; +} + static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val) { unsigned char data[3] = { reg >> 8, reg & 0xff, val}; @@ -1118,6 +1144,11 @@ static int ov5647_set_pad_fmt(struct v4l2_subdev *sd, hblank = mode->hts - mode->format.width; __v4l2_ctrl_modify_range(sensor->hblank, hblank, hblank, 1, hblank); + __v4l2_ctrl_modify_range(sensor->vblank, OV5647_VBLANK_MIN, + OV5647_VTS_MAX - mode->format.height, + 1, mode->vts - mode->format.height); + __v4l2_ctrl_s_ctrl(sensor->vblank, mode->vts - mode->format.height); + *fmt = mode->format; mutex_unlock(&sensor->lock); @@ -1325,6 +1356,9 @@ static int ov5647_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_HBLANK: /* Read-only, but we adjust it based on mode. */ return 0; + case V4L2_CID_VBLANK: + return ov5647_write16(sd, OV5647_REG_VTS_HI, + sensor->mode->format.height + ctrl->val); default: dev_info(&client->dev, "Control (id:0x%x, val:0x%x) not supported\n", @@ -1344,7 +1378,7 @@ static int ov5647_init_controls(struct ov5647 *sensor) struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd); int hblank; - v4l2_ctrl_handler_init(&sensor->ctrls, 7); + v4l2_ctrl_handler_init(&sensor->ctrls, 8); v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 0); @@ -1383,6 +1417,12 @@ static int ov5647_init_controls(struct ov5647 *sensor) goto handler_free; sensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, + V4L2_CID_VBLANK, OV5647_VBLANK_MIN, + OV5647_VTS_MAX - sensor->mode->format.height, + 1, sensor->mode->vts - + sensor->mode->format.height); + if (sensor->ctrls.error) goto handler_free;