From patchwork Fri Apr 29 21:30:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Pavel Machek X-Patchwork-Id: 616976 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2001:1868:205::9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3qxRk10Pz6z9sDD for ; Sat, 30 Apr 2016 07:32:25 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1awFzt-0004uM-80; Fri, 29 Apr 2016 21:30:49 +0000 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1awFzn-0004hu-3z for linux-arm-kernel@lists.infradead.org; Fri, 29 Apr 2016 21:30:47 +0000 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 87BBE8237F; Fri, 29 Apr 2016 23:30:21 +0200 (CEST) Date: Fri, 29 Apr 2016 23:30:20 +0200 From: Pavel Machek To: Hans Verkuil Subject: [pre-rfc] focus and flash for Nokia N900 (was Re: v4l subdevs without big device was Re: drivers/media/i2c/adp1653.c: does not show as /dev/video* or v4l-subdev*) Message-ID: <20160429213020.GA25594@amd> References: <20160428084546.GA9957@amd> <20160429071525.GA4823@amd> <57230DE7.3020701@xs4all.nl> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <57230DE7.3020701@xs4all.nl> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160429_143043_714330_9A73A111 X-CRM114-Status: GOOD ( 35.43 ) X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-4.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [195.113.26.193 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ivo.g.dimitrov.75@gmail.com, linux-media@vger.kernel.org, khilman@kernel.org, tony@atomide.com, mchehab@osg.samsung.com, aaro.koskinen@iki.fi, kernel list , sre@kernel.org, sakari.ailus@iki.fi, pali.rohar@gmail.com, tuukkat76@gmail.com, linux-omap@vger.kernel.org, patrikbachan@gmail.com, linux-arm-kernel , serge@hallyn.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org Hi! > "5. DT Bindings for flash & lens controllers > > There are drivers that create their MC topology using the device tree information, > which works great for entities that transport data, but how to detect entities > that don’t transport data such as flash devices, focusers, etc.? How can those be > deduced using the device tree? > > Sensor DT node add phandle to focus controller: add generic v4l binding properties > to reference such devices." > > This wasn't a problem with the original N900 since that didn't use DT AFAIK and > these devices were loaded explicitly through board code. > > But now you run into the same problem that I have. > > The solution is that sensor devices have to provide phandles to those controller > devices. And to do that you need to define bindings which is always the hard part. > > Look in Documentation/devicetree/bindings/media/video-interfaces.txt, section > "Optional endpoint properties". > > Something like: > > controllers: an array of phandles to controller devices associated with this > endpoint such as flash and lens controllers. Ok, so after a big fight, I got both auto focus and flash to work on n900. Relative to N900 camera trees recently posted. Subdevs behave rather funny, and --sleep-forever is needed for useful operation. YA=/my/tui/yavta/yavta # torch sudo $YA --sleep-forever --set-control '0x009c0901 2' /dev/v4l-subdev11 # focus -- near sudo $YA --sleep-forever --set-control '0x009a090a 1023' /dev/l-subdev12 Signed-off-by: Pavel Machek diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index 9c9c1e8..acf1457 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -239,6 +239,7 @@ pinctrl-names = "default"; pinctrl-0 = <&camera_pins>; + ti,camera-flashes = <&adp1653 &cam1 &ad5820 &cam1>; ports { port@1 { @@ -251,7 +252,7 @@ data-lanes = <1>; lane-polarity = <0 0>; clock-inv = <0>; - strobe = <0>; + strobe = <1>; crc = <0>; }; }; @@ -879,6 +880,16 @@ }; }; }; + + /* D/A converter for auto-focus */ + ad5820: dac@0c { + compatible = "adi,ad5820"; + reg = <0x0c>; + + VANA-supply = <&vaux4>; + + #io-channel-cells = <0>; + }; }; &mmc1 { diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 254c106..77313a1 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -279,6 +279,13 @@ config VIDEO_ML86V7667 To compile this driver as a module, choose M here: the module will be called ml86v7667. +config VIDEO_AD5820 + tristate "AD5820 lens voice coil support" + depends on I2C && VIDEO_V4L2 && MEDIA_CONTROLLER + ---help--- + This is a driver for the AD5820 camera lens voice coil. + It is used for example in Nokia N900 (RX-51). + config VIDEO_SAA7110 tristate "Philips SAA7110 video decoder" depends on VIDEO_V4L2 && I2C diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 05e79aa..34434ae 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_VIDEO_SAA717X) += saa717x.o obj-$(CONFIG_VIDEO_SAA7127) += saa7127.o obj-$(CONFIG_VIDEO_SAA7185) += saa7185.o obj-$(CONFIG_VIDEO_SAA6752HS) += saa6752hs.o +obj-$(CONFIG_VIDEO_AD5820) += ad5820.o obj-$(CONFIG_VIDEO_ADV7170) += adv7170.o obj-$(CONFIG_VIDEO_ADV7175) += adv7175.o obj-$(CONFIG_VIDEO_ADV7180) += adv7180.o diff --git a/drivers/media/i2c/ad5820.c b/drivers/media/i2c/ad5820.c new file mode 100644 index 0000000..5aee185 --- /dev/null +++ b/drivers/media/i2c/ad5820.c @@ -0,0 +1,526 @@ +/* + * drivers/media/i2c/ad5820.c + * + * AD5820 DAC driver for camera voice coil focus. + * + * Copyright (C) 2008 Nokia Corporation + * Copyright (C) 2007 Texas Instruments + * + * Contact: Tuukka Toivonen + * Sakari Ailus + * + * Based on af_d88.c by Texas Instruments. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define CODE_TO_RAMP_US(s) ((s) == 0 ? 0 : (1 << ((s) - 1)) * 50) +#define RAMP_US_TO_CODE(c) fls(((c) + ((c)>>1)) / 50) + +/** + * @brief I2C write using i2c_transfer(). + * @param coil - the driver data structure + * @param data - register value to be written + * @returns nonnegative on success, negative if failed + */ +static int ad5820_write(struct ad5820_device *coil, u16 data) +{ + struct i2c_client *client = v4l2_get_subdevdata(&coil->subdev); + struct i2c_msg msg; + int r; + + if (!client->adapter) + return -ENODEV; + + data = cpu_to_be16(data); + msg.addr = client->addr; + msg.flags = 0; + msg.len = 2; + msg.buf = (u8 *)&data; + + r = i2c_transfer(client->adapter, &msg, 1); + if (r < 0) { + dev_err(&client->dev, "write failed, error %d\n", r); + return r; + } + + return 0; +} + +/** + * @brief I2C read using i2c_transfer(). + * @param coil - the driver data structure + * @returns unsigned 16-bit register value on success, negative if failed + */ +static int ad5820_read(struct ad5820_device *coil) +{ + struct i2c_client *client = v4l2_get_subdevdata(&coil->subdev); + struct i2c_msg msg; + int r; + u16 data = 0; + + if (!client->adapter) + return -ENODEV; + + msg.addr = client->addr; + msg.flags = I2C_M_RD; + msg.len = 2; + msg.buf = (u8 *)&data; + + r = i2c_transfer(client->adapter, &msg, 1); + if (r < 0) { + dev_err(&client->dev, "read failed, error %d\n", r); + return r; + } + + return be16_to_cpu(data); +} + +/* + * Calculate status word and write it to the device based on current + * values of V4L2 controls. It is assumed that the stored V4L2 control + * values are properly limited and rounded. + */ +static int ad5820_update_hw(struct ad5820_device *coil) +{ + u16 status; + + status = RAMP_US_TO_CODE(coil->focus_ramp_time); + status |= coil->focus_ramp_mode + ? AD5820_RAMP_MODE_64_16 : AD5820_RAMP_MODE_LINEAR; + status |= coil->focus_absolute << AD5820_DAC_SHIFT; + + if (coil->standby) + status |= AD5820_POWER_DOWN; + + return ad5820_write(coil, status); +} + +/* + * Power handling + */ +static int ad5820_power_off(struct ad5820_device *coil, int standby) +{ + int ret = 0; + + /* + * Go to standby first as real power off my be denied by the hardware + * (single power line control for both coil and sensor). + */ + if (standby) { + coil->standby = 1; + ret = ad5820_update_hw(coil); + } + +// ret |= coil->platform_data->set_xshutdown(&coil->subdev, 0); + ret |= regulator_disable(coil->vana); + + return ret; +} + +static int ad5820_power_on(struct ad5820_device *coil, int restore) +{ + int ret; + + printk("ad5820_power_on: 1\n"); + ret = regulator_enable(coil->vana); + if (ret < 0) + return ret; + + printk("ad5820_power_on: 2\n"); +#if 0 + printk("ad5820_power_on: pd %lx\n", coil->platform_data); + printk("ad5820_power_on: xs %lx\n", coil->platform_data->set_xshutdown); + ret = coil->platform_data->set_xshutdown(&coil->subdev, 1); + if (ret) + goto fail; +#endif + + printk("ad5820_power_on: 3\n"); + if (restore) { + /* Restore the hardware settings. */ + coil->standby = 0; + printk("ad5820_power_on: 4\n"); + ret = ad5820_update_hw(coil); + if (ret) + goto fail; + } + printk("ad5820_power_on: 5\n"); + return 0; + +fail: + coil->standby = 1; + +#if 0 + coil->platform_data->set_xshutdown(&coil->subdev, 0); +#endif + regulator_disable(coil->vana); + + return ret; +} + +/* + * V4L2 controls + */ +static int ad5820_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ad5820_device *coil = + container_of(ctrl->handler, struct ad5820_device, ctrls); + u32 code; + int r = 0; + + switch (ctrl->id) { + case V4L2_CID_FOCUS_ABSOLUTE: + coil->focus_absolute = ctrl->val; + return ad5820_update_hw(coil); + + case V4L2_CID_FOCUS_AD5820_RAMP_TIME: + code = RAMP_US_TO_CODE(ctrl->val); + ctrl->val = CODE_TO_RAMP_US(code); + coil->focus_ramp_time = ctrl->val; + break; + + case V4L2_CID_FOCUS_AD5820_RAMP_MODE: + coil->focus_ramp_mode = ctrl->val; + break; + } + + return r; +} + +static const struct v4l2_ctrl_ops ad5820_ctrl_ops = { + .s_ctrl = ad5820_set_ctrl, +}; + +static const char *ad5820_focus_menu[] = { + "Linear ramp", + "64/16 ramp", +}; + +static const struct v4l2_ctrl_config ad5820_ctrls[] = { + { + .ops = &ad5820_ctrl_ops, + .id = V4L2_CID_FOCUS_AD5820_RAMP_TIME, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Focus ramping time [us]", + .min = 0, + .max = 3200, + .step = 50, + .def = 0, + .flags = 0, + }, + { + .ops = &ad5820_ctrl_ops, + .id = V4L2_CID_FOCUS_AD5820_RAMP_MODE, + .type = V4L2_CTRL_TYPE_MENU, + .name = "Focus ramping mode", + .min = 0, + .max = ARRAY_SIZE(ad5820_focus_menu), + .step = 0, + .def = 0, + .flags = 0, + .qmenu = ad5820_focus_menu, + }, +}; + + +static int ad5820_init_controls(struct ad5820_device *coil) +{ + unsigned int i; + + v4l2_ctrl_handler_init(&coil->ctrls, ARRAY_SIZE(ad5820_ctrls) + 1); + + /* + * V4L2_CID_FOCUS_ABSOLUTE + * + * Minimum current is 0 mA, maximum is 100 mA. Thus, 1 code is + * equivalent to 100/1023 = 0.0978 mA. Nevertheless, we do not use [mA] + * for focus position, because it is meaningless for user. Meaningful + * would be to use focus distance or even its inverse, but since the + * driver doesn't have sufficiently knowledge to do the conversion, we + * will just use abstract codes here. In any case, smaller value = focus + * position farther from camera. The default zero value means focus at + * infinity, and also least current consumption. + */ + v4l2_ctrl_new_std(&coil->ctrls, &ad5820_ctrl_ops, + V4L2_CID_FOCUS_ABSOLUTE, 0, 1023, 1, 0); + + /* V4L2_CID_TEST_PATTERN and V4L2_CID_MODE_* */ + for (i = 0; i < ARRAY_SIZE(ad5820_ctrls); ++i) + v4l2_ctrl_new_custom(&coil->ctrls, &ad5820_ctrls[i], NULL); + + if (coil->ctrls.error) + return coil->ctrls.error; + + coil->focus_absolute = 0; + coil->focus_ramp_time = 0; + coil->focus_ramp_mode = 0; + + coil->subdev.ctrl_handler = &coil->ctrls; + return 0; +} + +/* + * V4L2 subdev operations + */ +static int +ad5820_registered(struct v4l2_subdev *subdev) +{ + static const int CHECK_VALUE = 0x3FF0; + + struct ad5820_device *coil = to_ad5820_device(subdev); + struct i2c_client *client = v4l2_get_subdevdata(subdev); + u16 status = AD5820_POWER_DOWN | CHECK_VALUE; + int rval; + + printk("registered\n"); + coil->vana = regulator_get(&client->dev, "VANA"); + if (IS_ERR(coil->vana)) { + dev_err(&client->dev, "could not get regulator for vana\n"); + return -ENODEV; + } +#if 0 + printk("detect\n"); + /* Detect that the chip is there */ + rval = ad5820_power_on(coil, 0); + if (rval) + goto not_detected; + rval = ad5820_write(coil, status); + if (rval) + goto not_detected; + rval = ad5820_read(coil); + if (rval != status) + goto not_detected; + + + { + int i, j; + for (j = 0; j<5; j++) { + printk("hwtest: phase %d\n", j); + for (i=0; i<1023; i++) { + coil->focus_absolute = i; + msleep(1); + ad5820_update_hw(coil); + } + } + } + + printk("detect ok, poweroff\n"); + ad5820_power_off(coil, 1); +#endif + printk("controls\n"); + return ad5820_init_controls(coil); + +not_detected: + dev_err(&client->dev, "not detected\n"); + ad5820_power_off(coil, 0); + regulator_put(coil->vana); + return -ENODEV; +} + +static int +ad5820_set_power(struct v4l2_subdev *subdev, int on) +{ + struct ad5820_device *coil = to_ad5820_device(subdev); + int ret = 0; + + mutex_lock(&coil->power_lock); + + /* + * If the power count is modified from 0 to != 0 or from != 0 to 0, + * update the power state. + */ + if (coil->power_count == !on) { + ret = on ? ad5820_power_on(coil, 1) : ad5820_power_off(coil, 1); + if (ret < 0) + goto done; + } + + /* Update the power count. */ + coil->power_count += on ? 1 : -1; + WARN_ON(coil->power_count < 0); + +done: + mutex_unlock(&coil->power_lock); + return ret; +} + +static int ad5820_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + return ad5820_set_power(sd, 1); +} + +static int ad5820_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + return ad5820_set_power(sd, 0); +} + +static const struct v4l2_subdev_core_ops ad5820_core_ops = { + .s_power = ad5820_set_power, +}; + +static const struct v4l2_subdev_ops ad5820_ops = { + .core = &ad5820_core_ops, +}; + +static const struct v4l2_subdev_internal_ops ad5820_internal_ops = { + .registered = ad5820_registered, + .open = ad5820_open, + .close = ad5820_close, +}; + +/* + * I2C driver + */ +#ifdef CONFIG_PM + +static int ad5820_suspend(struct device *dev) +{ + struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct v4l2_subdev *subdev = i2c_get_clientdata(client); + struct ad5820_device *coil = to_ad5820_device(subdev); + + if (!coil->power_count) + return 0; + + return ad5820_power_off(coil, 0); +} + +static int ad5820_resume(struct device *dev) +{ + struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct v4l2_subdev *subdev = i2c_get_clientdata(client); + struct ad5820_device *coil = to_ad5820_device(subdev); + + if (!coil->power_count) + return 0; + + return ad5820_power_on(coil, 1); +} + +#else + +#define ad5820_suspend NULL +#define ad5820_resume NULL + +#endif /* CONFIG_PM */ + +static int ad5820_probe(struct i2c_client *client, + const struct i2c_device_id *devid) +{ + struct ad5820_device *coil; + int ret = 0; + + coil = kzalloc(sizeof(*coil), GFP_KERNEL); + if (coil == NULL) + return -ENOMEM; + + coil->platform_data = NULL; // client->dev.platform_data; + + mutex_init(&coil->power_lock); + + v4l2_i2c_subdev_init(&coil->subdev, client, &ad5820_ops); + coil->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + coil->subdev.internal_ops = &ad5820_internal_ops; + strcpy(coil->subdev.name, "ad5820 focus"); + + ret = media_entity_pads_init(&coil->subdev.entity, 0, NULL); + if (ret < 0) { + kfree(coil); + return ret; + } + + ret = v4l2_async_register_subdev(&coil->subdev); + if (ret < 0) + kfree(coil); + + printk("Hack -- testing hw\n"); + ad5820_registered(coil); + + printk("hw test done\n"); + + return ret; +} + +static int __exit ad5820_remove(struct i2c_client *client) +{ + struct v4l2_subdev *subdev = i2c_get_clientdata(client); + struct ad5820_device *coil = to_ad5820_device(subdev); + + v4l2_device_unregister_subdev(&coil->subdev); + v4l2_ctrl_handler_free(&coil->ctrls); + media_entity_cleanup(&coil->subdev.entity); + if (coil->vana) + regulator_put(coil->vana); + + kfree(coil); + return 0; +} + +static const struct i2c_device_id ad5820_id_table[] = { + { AD5820_NAME, 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ad5820_id_table); + +static SIMPLE_DEV_PM_OPS(ad5820_pm, ad5820_suspend, ad5820_resume); + +static struct i2c_driver ad5820_i2c_driver = { + .driver = { + .name = AD5820_NAME, + .pm = &ad5820_pm, + }, + .probe = ad5820_probe, + .remove = __exit_p(ad5820_remove), + .id_table = ad5820_id_table, +}; + +static int __init ad5820_init(void) +{ + int rval; + + rval = i2c_add_driver(&ad5820_i2c_driver); + if (rval) + printk(KERN_INFO "%s: failed registering " AD5820_NAME "\n", + __func__); + + return rval; +} + +static void __exit ad5820_exit(void) +{ + i2c_del_driver(&ad5820_i2c_driver); +} + + +module_init(ad5820_init); +module_exit(ad5820_exit); + +MODULE_AUTHOR("Tuukka Toivonen "); +MODULE_DESCRIPTION("AD5820 camera lens driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c index 0cd494e..6dd5d6a 100644 --- a/drivers/media/i2c/adp1653.c +++ b/drivers/media/i2c/adp1653.c @@ -306,6 +306,8 @@ adp1653_init_device(struct adp1653_flash *flash) return -EIO; } + dev_info(&client->dev, "adp1653 device ok\n", __func__); + return 0; } @@ -492,6 +494,8 @@ static int adp1653_probe(struct i2c_client *client, if (flash == NULL) return -ENOMEM; + dev_info(&client->dev, "adp1653 probe\n"); + if (client->dev.of_node) { ret = adp1653_of_init(client, flash, client->dev.of_node); if (ret) @@ -505,11 +509,13 @@ static int adp1653_probe(struct i2c_client *client, flash->platform_data = client->dev.platform_data; } + dev_info(&client->dev, "adp1653 probe: subdev\n", __func__); mutex_init(&flash->power_lock); v4l2_i2c_subdev_init(&flash->subdev, client, &adp1653_ops); flash->subdev.internal_ops = &adp1653_internal_ops; flash->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + strcpy(flash->subdev.name, "adp1653 flash"); ret = adp1653_init_controls(flash); if (ret) @@ -519,6 +525,14 @@ static int adp1653_probe(struct i2c_client *client, if (ret < 0) goto free_and_quit; + dev_info(&client->dev, "adp1653 probe: should be ok\n"); + + ret = v4l2_async_register_subdev(&flash->subdev); + if (ret < 0) + goto free_and_quit; + + dev_info(&client->dev, "adp1653 probe: async register subdev ok\n"); + flash->subdev.entity.function = MEDIA_ENT_F_FLASH; return 0; @@ -538,6 +552,8 @@ static int adp1653_remove(struct i2c_client *client) v4l2_ctrl_handler_free(&flash->ctrls); media_entity_cleanup(&flash->subdev.entity); + dev_info(&client->dev, "adp1653 remove\n"); + return 0; } diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 6361fde..23d484c 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -2095,13 +2095,20 @@ static void isp_of_parse_node_csi2(struct device *dev, buscfg->bus.csi2.crc = 1; } -static int isp_of_parse_node(struct device *dev, struct device_node *node, - struct isp_async_subdev *isd) +static int isp_of_parse_node_endpoint(struct device *dev, + struct device_node *node, + struct isp_async_subdev *isd) { - struct isp_bus_cfg *buscfg = &isd->bus; + struct isp_bus_cfg *buscfg; struct v4l2_of_endpoint vep; int ret; + isd->bus = devm_kzalloc(dev, sizeof(*isd->bus), GFP_KERNEL); + if (!isd->bus) + return -ENOMEM; + + buscfg = isd->bus; + ret = v4l2_of_parse_endpoint(node, &vep); if (ret) return ret; @@ -2144,10 +2151,51 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node, return 0; } +static int isp_of_parse_node(struct device *dev, struct device_node *node, + struct v4l2_async_notifier *notifier, + u32 group_id, bool link) +{ + struct isp_async_subdev *isd; + + isd = devm_kzalloc(dev, sizeof(*isd), GFP_KERNEL); + if (!isd) { + of_node_put(node); + return -ENOMEM; + } + + notifier->subdevs[notifier->num_subdevs] = &isd->asd; + + if (link) { + if (isp_of_parse_node_endpoint(dev, node, isd)) { + of_node_put(node); + return -EINVAL; + } + + isd->asd.match.of.node = of_graph_get_remote_port_parent(node); + of_node_put(node); + } else { + isd->asd.match.of.node = node; + } + + if (!isd->asd.match.of.node) { + dev_warn(dev, "bad remote port parent\n"); + return -EINVAL; + } + + isd->asd.match_type = V4L2_ASYNC_MATCH_OF; + isd->group_id = group_id; + notifier->num_subdevs++; + + return 0; +} + static int isp_of_parse_nodes(struct device *dev, struct v4l2_async_notifier *notifier) { struct device_node *node = NULL; + int ret; + unsigned int flash = 0; + u32 group_id = 0; notifier->subdevs = devm_kcalloc( dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL); @@ -2156,30 +2204,57 @@ static int isp_of_parse_nodes(struct device *dev, while (notifier->num_subdevs < ISP_MAX_SUBDEVS && (node = of_graph_get_next_endpoint(dev->of_node, node))) { - struct isp_async_subdev *isd; + ret = isp_of_parse_node(dev, node, notifier, group_id++, true); + if (ret) + return ret; + } - isd = devm_kzalloc(dev, sizeof(*isd), GFP_KERNEL); - if (!isd) { - of_node_put(node); - return -ENOMEM; - } + while (notifier->num_subdevs < ISP_MAX_SUBDEVS && + (node = of_parse_phandle(dev->of_node, "ti,camera-flashes", + flash++))) { + struct device_node *sensor_node = + of_parse_phandle(dev->of_node, "ti,camera-flashes", + flash++); + unsigned int i; + u32 flash_group_id; + + if (!sensor_node) + return -EINVAL; - notifier->subdevs[notifier->num_subdevs] = &isd->asd; + for (i = 0; i < notifier->num_subdevs; i++) { + struct isp_async_subdev *isd = container_of( + notifier->subdevs[i], struct isp_async_subdev, + asd); - if (isp_of_parse_node(dev, node, isd)) { - of_node_put(node); - return -EINVAL; + if (!isd->bus) + continue; + + dev_dbg(dev, "match \"%s\", \"%s\"\n",sensor_node->name, + isd->asd.match.of.node->name); + + if (sensor_node != isd->asd.match.of.node) + continue; + + dev_dbg(dev, "found\n"); + + flash_group_id = isd->group_id; + break; } - isd->asd.match.of.node = of_graph_get_remote_port_parent(node); - of_node_put(node); - if (!isd->asd.match.of.node) { - dev_warn(dev, "bad remote port parent\n"); - return -EINVAL; + /* + * No sensor was found --- complain and allocate a new + * group ID. + */ + if (i == notifier->num_subdevs) { + dev_warn(dev, "no device node \"%s\" was found", + sensor_node->name); + flash_group_id = group_id++; } - isd->asd.match_type = V4L2_ASYNC_MATCH_OF; - notifier->num_subdevs++; + ret = isp_of_parse_node(dev, node, notifier, flash_group_id, + false); + if (ret) + return ret; } return notifier->num_subdevs; @@ -2192,8 +2267,9 @@ static int isp_subdev_notifier_bound(struct v4l2_async_notifier *async, struct isp_async_subdev *isd = container_of(asd, struct isp_async_subdev, asd); +// subdev->entity.group_id = isd->group_id; isd->sd = subdev; - isd->sd->host_priv = &isd->bus; + isd->sd->host_priv = isd->bus; return 0; } @@ -2396,12 +2472,15 @@ static int isp_probe(struct platform_device *pdev) if (ret < 0) goto error_register_entities; - isp->notifier.bound = isp_subdev_notifier_bound; - isp->notifier.complete = isp_subdev_notifier_complete; + if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { + isp->notifier.bound = isp_subdev_notifier_bound; + isp->notifier.complete = isp_subdev_notifier_complete; - ret = v4l2_async_notifier_register(&isp->v4l2_dev, &isp->notifier); - if (ret) - goto error_register_entities; + ret = v4l2_async_notifier_register(&isp->v4l2_dev, + &isp->notifier); + if (ret) + goto error_register_entities; + } isp_core_init(isp, 1); omap3isp_put(isp); diff --git a/drivers/media/platform/omap3isp/isp.h b/drivers/media/platform/omap3isp/isp.h index 7e6f663..639b3ca 100644 --- a/drivers/media/platform/omap3isp/isp.h +++ b/drivers/media/platform/omap3isp/isp.h @@ -228,8 +228,9 @@ struct isp_device { struct isp_async_subdev { struct v4l2_subdev *sd; - struct isp_bus_cfg bus; + struct isp_bus_cfg *bus; struct v4l2_async_subdev asd; + u32 group_id; }; #define v4l2_dev_to_isp_device(dev) \ diff --git a/drivers/media/platform/omap3isp/ispcsiphy.c b/drivers/media/platform/omap3isp/ispcsiphy.c index 495447d..750ce93 100644 --- a/drivers/media/platform/omap3isp/ispcsiphy.c +++ b/drivers/media/platform/omap3isp/ispcsiphy.c @@ -177,7 +177,7 @@ static int omap3isp_csiphy_config(struct isp_csiphy *phy) struct isp_async_subdev *isd = container_of(pipe->external->asd, struct isp_async_subdev, asd); - buscfg = &isd->bus; + buscfg = isd->bus; } if (buscfg->interface == ISP_INTERFACE_CCP2B_PHY1 diff --git a/include/media/ad5820.h b/include/media/ad5820.h new file mode 100644 index 0000000..f5a1565 --- /dev/null +++ b/include/media/ad5820.h @@ -0,0 +1,70 @@ +/* + * include/media/ad5820.h + * + * Copyright (C) 2008 Nokia Corporation + * Copyright (C) 2007 Texas Instruments + * + * Contact: Tuukka Toivonen + * Sakari Ailus + * + * Based on af_d88.c by Texas Instruments. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef AD5820_H +#define AD5820_H + +#include +#include +#include + +#include +#include + +struct regulator; + +#define AD5820_NAME "ad5820" +#define AD5820_I2C_ADDR (0x18 >> 1) + +/* Register definitions */ +#define AD5820_POWER_DOWN (1 << 15) +#define AD5820_DAC_SHIFT 4 +#define AD5820_RAMP_MODE_LINEAR (0 << 3) +#define AD5820_RAMP_MODE_64_16 (1 << 3) + +struct ad5820_platform_data { + int (*set_xshutdown)(struct v4l2_subdev *subdev, int set); +}; + +#define to_ad5820_device(sd) container_of(sd, struct ad5820_device, subdev) + +struct ad5820_device { + struct v4l2_subdev subdev; + struct ad5820_platform_data *platform_data; + struct regulator *vana; + + struct v4l2_ctrl_handler ctrls; + u32 focus_absolute; + u32 focus_ramp_time; + u32 focus_ramp_mode; + + struct mutex power_lock; + int power_count; + + int standby : 1; +}; + +#endif /* AD5820_H */