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[media] adp1653: Add driver for LED flash controller
This patch adds the driver for the adp1653 LED flash controller. This controller supports a high power led in flash and torch modes and an indicator light, sometimes also called privacy light. The adp1653 is used on the Nokia N900. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Tuukka Toivonen <tuukkat76@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: David Cohen <dacohen@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sakari Ailus
Mauro Carvalho Chehab
parent
7ba85fa4fd
commit
13abadad17
@ -489,6 +489,15 @@ config VIDEO_TCM825X
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This is a driver for the Toshiba TCM825x VGA camera sensor.
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It is used for example in Nokia N800.
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comment "Flash devices"
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config VIDEO_ADP1653
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tristate "ADP1653 flash support"
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depends on I2C && VIDEO_V4L2 && MEDIA_CONTROLLER
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---help---
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This is a driver for the ADP1653 flash controller. It is used for
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example in Nokia N900.
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comment "Video improvement chips"
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config VIDEO_UPD64031A
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@ -70,6 +70,7 @@ obj-$(CONFIG_VIDEO_MT9V032) += mt9v032.o
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obj-$(CONFIG_VIDEO_SR030PC30) += sr030pc30.o
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obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o
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obj-$(CONFIG_VIDEO_M5MOLS) += m5mols/
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obj-$(CONFIG_VIDEO_ADP1653) += adp1653.o
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obj-$(CONFIG_SOC_CAMERA_IMX074) += imx074.o
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obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o
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491
drivers/media/video/adp1653.c
Normal file
491
drivers/media/video/adp1653.c
Normal file
@ -0,0 +1,491 @@
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/*
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* drivers/media/video/adp1653.c
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*
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* Copyright (C) 2008--2011 Nokia Corporation
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*
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* Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
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*
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* Contributors:
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* Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
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* Tuukka Toivonen <tuukkat76@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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* TODO:
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* - fault interrupt handling
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* - hardware strobe
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* - power doesn't need to be ON if all lights are off
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*
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*/
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/version.h>
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#include <media/adp1653.h>
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#include <media/v4l2-device.h>
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#define TIMEOUT_MAX 820000
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#define TIMEOUT_STEP 54600
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#define TIMEOUT_MIN (TIMEOUT_MAX - ADP1653_REG_CONFIG_TMR_SET_MAX \
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* TIMEOUT_STEP)
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#define TIMEOUT_US_TO_CODE(t) ((TIMEOUT_MAX + (TIMEOUT_STEP / 2) - (t)) \
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/ TIMEOUT_STEP)
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#define TIMEOUT_CODE_TO_US(c) (TIMEOUT_MAX - (c) * TIMEOUT_STEP)
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/* Write values into ADP1653 registers. */
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static int adp1653_update_hw(struct adp1653_flash *flash)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&flash->subdev);
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u8 out_sel;
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u8 config = 0;
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int rval;
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out_sel = ADP1653_INDICATOR_INTENSITY_uA_TO_REG(
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flash->indicator_intensity->val)
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<< ADP1653_REG_OUT_SEL_ILED_SHIFT;
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switch (flash->led_mode->val) {
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case V4L2_FLASH_LED_MODE_NONE:
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break;
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case V4L2_FLASH_LED_MODE_FLASH:
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/* Flash mode, light on with strobe, duration from timer */
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config = ADP1653_REG_CONFIG_TMR_CFG;
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config |= TIMEOUT_US_TO_CODE(flash->flash_timeout->val)
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<< ADP1653_REG_CONFIG_TMR_SET_SHIFT;
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break;
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case V4L2_FLASH_LED_MODE_TORCH:
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/* Torch mode, light immediately on, duration indefinite */
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out_sel |= ADP1653_FLASH_INTENSITY_mA_TO_REG(
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flash->torch_intensity->val)
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<< ADP1653_REG_OUT_SEL_HPLED_SHIFT;
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break;
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}
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rval = i2c_smbus_write_byte_data(client, ADP1653_REG_OUT_SEL, out_sel);
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if (rval < 0)
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return rval;
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rval = i2c_smbus_write_byte_data(client, ADP1653_REG_CONFIG, config);
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if (rval < 0)
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return rval;
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return 0;
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}
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static int adp1653_get_fault(struct adp1653_flash *flash)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&flash->subdev);
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int fault;
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int rval;
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fault = i2c_smbus_read_byte_data(client, ADP1653_REG_FAULT);
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if (IS_ERR_VALUE(fault))
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return fault;
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flash->fault |= fault;
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if (!flash->fault)
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return 0;
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/* Clear faults. */
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rval = i2c_smbus_write_byte_data(client, ADP1653_REG_OUT_SEL, 0);
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if (IS_ERR_VALUE(rval))
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return rval;
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flash->led_mode->val = V4L2_FLASH_LED_MODE_NONE;
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rval = adp1653_update_hw(flash);
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if (IS_ERR_VALUE(rval))
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return rval;
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return flash->fault;
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}
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static int adp1653_strobe(struct adp1653_flash *flash, int enable)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&flash->subdev);
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u8 out_sel = ADP1653_INDICATOR_INTENSITY_uA_TO_REG(
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flash->indicator_intensity->val)
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<< ADP1653_REG_OUT_SEL_ILED_SHIFT;
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int rval;
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if (flash->led_mode->val != V4L2_FLASH_LED_MODE_FLASH)
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return -EBUSY;
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if (!enable)
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return i2c_smbus_write_byte_data(client, ADP1653_REG_OUT_SEL,
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out_sel);
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out_sel |= ADP1653_FLASH_INTENSITY_mA_TO_REG(
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flash->flash_intensity->val)
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<< ADP1653_REG_OUT_SEL_HPLED_SHIFT;
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rval = i2c_smbus_write_byte_data(client, ADP1653_REG_OUT_SEL, out_sel);
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if (rval)
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return rval;
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/* Software strobe using i2c */
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rval = i2c_smbus_write_byte_data(client, ADP1653_REG_SW_STROBE,
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ADP1653_REG_SW_STROBE_SW_STROBE);
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if (rval)
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return rval;
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return i2c_smbus_write_byte_data(client, ADP1653_REG_SW_STROBE, 0);
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}
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/* --------------------------------------------------------------------------
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* V4L2 controls
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*/
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static int adp1653_get_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct adp1653_flash *flash =
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container_of(ctrl->handler, struct adp1653_flash, ctrls);
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int rval;
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rval = adp1653_get_fault(flash);
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if (IS_ERR_VALUE(rval))
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return rval;
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ctrl->cur.val = 0;
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if (flash->fault & ADP1653_REG_FAULT_FLT_SCP)
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ctrl->cur.val |= V4L2_FLASH_FAULT_SHORT_CIRCUIT;
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if (flash->fault & ADP1653_REG_FAULT_FLT_OT)
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ctrl->cur.val |= V4L2_FLASH_FAULT_OVER_TEMPERATURE;
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if (flash->fault & ADP1653_REG_FAULT_FLT_TMR)
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ctrl->cur.val |= V4L2_FLASH_FAULT_TIMEOUT;
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if (flash->fault & ADP1653_REG_FAULT_FLT_OV)
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ctrl->cur.val |= V4L2_FLASH_FAULT_OVER_VOLTAGE;
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flash->fault = 0;
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return 0;
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}
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static int adp1653_set_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct adp1653_flash *flash =
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container_of(ctrl->handler, struct adp1653_flash, ctrls);
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int rval;
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rval = adp1653_get_fault(flash);
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if (IS_ERR_VALUE(rval))
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return rval;
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if ((rval & (ADP1653_REG_FAULT_FLT_SCP |
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ADP1653_REG_FAULT_FLT_OT |
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ADP1653_REG_FAULT_FLT_OV)) &&
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(ctrl->id == V4L2_CID_FLASH_STROBE ||
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ctrl->id == V4L2_CID_FLASH_TORCH_INTENSITY ||
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ctrl->id == V4L2_CID_FLASH_LED_MODE))
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return -EBUSY;
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switch (ctrl->id) {
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case V4L2_CID_FLASH_STROBE:
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return adp1653_strobe(flash, 1);
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case V4L2_CID_FLASH_STROBE_STOP:
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return adp1653_strobe(flash, 0);
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}
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return adp1653_update_hw(flash);
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}
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static const struct v4l2_ctrl_ops adp1653_ctrl_ops = {
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.g_volatile_ctrl = adp1653_get_ctrl,
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.s_ctrl = adp1653_set_ctrl,
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};
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static int adp1653_init_controls(struct adp1653_flash *flash)
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{
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struct v4l2_ctrl *fault;
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v4l2_ctrl_handler_init(&flash->ctrls, 9);
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flash->led_mode =
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v4l2_ctrl_new_std_menu(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_LED_MODE,
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V4L2_FLASH_LED_MODE_TORCH, ~0x7, 0);
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v4l2_ctrl_new_std_menu(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_STROBE_SOURCE,
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V4L2_FLASH_STROBE_SOURCE_SOFTWARE, ~0x1, 0);
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v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_STROBE, 0, 0, 0, 0);
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v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_STROBE_STOP, 0, 0, 0, 0);
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flash->flash_timeout =
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v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_TIMEOUT, TIMEOUT_MIN,
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flash->platform_data->max_flash_timeout,
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TIMEOUT_STEP,
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flash->platform_data->max_flash_timeout);
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flash->flash_intensity =
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v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_INTENSITY,
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ADP1653_FLASH_INTENSITY_MIN,
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flash->platform_data->max_flash_intensity,
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1, flash->platform_data->max_flash_intensity);
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flash->torch_intensity =
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v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_TORCH_INTENSITY,
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ADP1653_TORCH_INTENSITY_MIN,
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flash->platform_data->max_torch_intensity,
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ADP1653_FLASH_INTENSITY_STEP,
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flash->platform_data->max_torch_intensity);
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flash->indicator_intensity =
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v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_INDICATOR_INTENSITY,
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ADP1653_INDICATOR_INTENSITY_MIN,
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flash->platform_data->max_indicator_intensity,
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ADP1653_INDICATOR_INTENSITY_STEP,
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ADP1653_INDICATOR_INTENSITY_MIN);
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fault = v4l2_ctrl_new_std(&flash->ctrls, &adp1653_ctrl_ops,
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V4L2_CID_FLASH_FAULT, 0,
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V4L2_FLASH_FAULT_OVER_VOLTAGE
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| V4L2_FLASH_FAULT_OVER_TEMPERATURE
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| V4L2_FLASH_FAULT_SHORT_CIRCUIT, 0, 0);
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if (flash->ctrls.error)
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return flash->ctrls.error;
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fault->is_volatile = 1;
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flash->subdev.ctrl_handler = &flash->ctrls;
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return 0;
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}
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/* --------------------------------------------------------------------------
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* V4L2 subdev operations
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*/
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static int
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adp1653_init_device(struct adp1653_flash *flash)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&flash->subdev);
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int rval;
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/* Clear FAULT register by writing zero to OUT_SEL */
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rval = i2c_smbus_write_byte_data(client, ADP1653_REG_OUT_SEL, 0);
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if (rval < 0) {
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dev_err(&client->dev, "failed writing fault register\n");
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return -EIO;
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}
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mutex_lock(&flash->ctrls.lock);
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/* Reset faults before reading new ones. */
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flash->fault = 0;
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rval = adp1653_get_fault(flash);
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mutex_unlock(&flash->ctrls.lock);
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if (rval > 0) {
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dev_err(&client->dev, "faults detected: 0x%1.1x\n", rval);
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return -EIO;
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}
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mutex_lock(&flash->ctrls.lock);
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rval = adp1653_update_hw(flash);
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mutex_unlock(&flash->ctrls.lock);
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if (rval) {
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dev_err(&client->dev,
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"adp1653_update_hw failed at %s\n", __func__);
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return -EIO;
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}
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return 0;
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}
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static int
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__adp1653_set_power(struct adp1653_flash *flash, int on)
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{
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int ret;
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ret = flash->platform_data->power(&flash->subdev, on);
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if (ret < 0)
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return ret;
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if (!on)
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return 0;
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ret = adp1653_init_device(flash);
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if (ret < 0)
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flash->platform_data->power(&flash->subdev, 0);
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return ret;
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}
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static int
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adp1653_set_power(struct v4l2_subdev *subdev, int on)
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{
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struct adp1653_flash *flash = to_adp1653_flash(subdev);
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int ret = 0;
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mutex_lock(&flash->power_lock);
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/* If the power count is modified from 0 to != 0 or from != 0 to 0,
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* update the power state.
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*/
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if (flash->power_count == !on) {
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ret = __adp1653_set_power(flash, !!on);
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if (ret < 0)
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goto done;
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}
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/* Update the power count. */
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flash->power_count += on ? 1 : -1;
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WARN_ON(flash->power_count < 0);
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done:
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mutex_unlock(&flash->power_lock);
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return ret;
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}
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static int adp1653_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
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{
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return adp1653_set_power(sd, 1);
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}
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static int adp1653_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
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{
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return adp1653_set_power(sd, 0);
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}
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static const struct v4l2_subdev_core_ops adp1653_core_ops = {
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.s_power = adp1653_set_power,
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};
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static const struct v4l2_subdev_ops adp1653_ops = {
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.core = &adp1653_core_ops,
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};
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static const struct v4l2_subdev_internal_ops adp1653_internal_ops = {
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.open = adp1653_open,
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.close = adp1653_close,
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};
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/* --------------------------------------------------------------------------
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* I2C driver
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*/
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#ifdef CONFIG_PM
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static int adp1653_suspend(struct device *dev)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct v4l2_subdev *subdev = i2c_get_clientdata(client);
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struct adp1653_flash *flash = to_adp1653_flash(subdev);
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if (!flash->power_count)
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return 0;
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return __adp1653_set_power(flash, 0);
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}
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static int adp1653_resume(struct device *dev)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct v4l2_subdev *subdev = i2c_get_clientdata(client);
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struct adp1653_flash *flash = to_adp1653_flash(subdev);
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if (!flash->power_count)
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return 0;
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||||
|
||||
return __adp1653_set_power(flash, 1);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
#define adp1653_suspend NULL
|
||||
#define adp1653_resume NULL
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
|
||||
static int adp1653_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *devid)
|
||||
{
|
||||
struct adp1653_flash *flash;
|
||||
int ret;
|
||||
|
||||
flash = kzalloc(sizeof(*flash), GFP_KERNEL);
|
||||
if (flash == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
flash->platform_data = client->dev.platform_data;
|
||||
|
||||
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;
|
||||
|
||||
adp1653_init_controls(flash);
|
||||
|
||||
ret = media_entity_init(&flash->subdev.entity, 0, NULL, 0);
|
||||
if (ret < 0)
|
||||
kfree(flash);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __exit adp1653_remove(struct i2c_client *client)
|
||||
{
|
||||
struct v4l2_subdev *subdev = i2c_get_clientdata(client);
|
||||
struct adp1653_flash *flash = to_adp1653_flash(subdev);
|
||||
|
||||
v4l2_device_unregister_subdev(&flash->subdev);
|
||||
v4l2_ctrl_handler_free(&flash->ctrls);
|
||||
media_entity_cleanup(&flash->subdev.entity);
|
||||
kfree(flash);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id adp1653_id_table[] = {
|
||||
{ ADP1653_NAME, 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, adp1653_id_table);
|
||||
|
||||
static struct dev_pm_ops adp1653_pm_ops = {
|
||||
.suspend = adp1653_suspend,
|
||||
.resume = adp1653_resume,
|
||||
};
|
||||
|
||||
static struct i2c_driver adp1653_i2c_driver = {
|
||||
.driver = {
|
||||
.name = ADP1653_NAME,
|
||||
.pm = &adp1653_pm_ops,
|
||||
},
|
||||
.probe = adp1653_probe,
|
||||
.remove = __exit_p(adp1653_remove),
|
||||
.id_table = adp1653_id_table,
|
||||
};
|
||||
|
||||
static int __init adp1653_init(void)
|
||||
{
|
||||
int rval;
|
||||
|
||||
rval = i2c_add_driver(&adp1653_i2c_driver);
|
||||
if (rval)
|
||||
printk(KERN_ALERT "%s: failed at i2c_add_driver\n", __func__);
|
||||
|
||||
return rval;
|
||||
}
|
||||
|
||||
static void __exit adp1653_exit(void)
|
||||
{
|
||||
i2c_del_driver(&adp1653_i2c_driver);
|
||||
}
|
||||
|
||||
module_init(adp1653_init);
|
||||
module_exit(adp1653_exit);
|
||||
|
||||
MODULE_AUTHOR("Sakari Ailus <sakari.ailus@nokia.com>");
|
||||
MODULE_DESCRIPTION("Analog Devices ADP1653 LED flash driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
126
include/media/adp1653.h
Normal file
126
include/media/adp1653.h
Normal file
@ -0,0 +1,126 @@
|
||||
/*
|
||||
* include/media/adp1653.h
|
||||
*
|
||||
* Copyright (C) 2008--2011 Nokia Corporation
|
||||
*
|
||||
* Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
|
||||
*
|
||||
* Contributors:
|
||||
* Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
|
||||
* Tuukka Toivonen <tuukkat76@gmail.com>
|
||||
*
|
||||
* 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 ADP1653_H
|
||||
#define ADP1653_H
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/videodev2.h>
|
||||
#include <media/v4l2-ctrls.h>
|
||||
#include <media/v4l2-subdev.h>
|
||||
|
||||
#define ADP1653_NAME "adp1653"
|
||||
#define ADP1653_I2C_ADDR (0x60 >> 1)
|
||||
|
||||
/* Register definitions */
|
||||
#define ADP1653_REG_OUT_SEL 0x00
|
||||
#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN 0x01
|
||||
#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX 0x0b
|
||||
#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN 0x0c
|
||||
#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX 0x1f
|
||||
#define ADP1653_REG_OUT_SEL_HPLED_SHIFT 3
|
||||
#define ADP1653_REG_OUT_SEL_ILED_MAX 0x07
|
||||
#define ADP1653_REG_OUT_SEL_ILED_SHIFT 0
|
||||
|
||||
#define ADP1653_REG_CONFIG 0x01
|
||||
#define ADP1653_REG_CONFIG_TMR_CFG (1 << 4)
|
||||
#define ADP1653_REG_CONFIG_TMR_SET_MAX 0x0f
|
||||
#define ADP1653_REG_CONFIG_TMR_SET_SHIFT 0
|
||||
|
||||
#define ADP1653_REG_SW_STROBE 0x02
|
||||
#define ADP1653_REG_SW_STROBE_SW_STROBE (1 << 0)
|
||||
|
||||
#define ADP1653_REG_FAULT 0x03
|
||||
#define ADP1653_REG_FAULT_FLT_SCP (1 << 3)
|
||||
#define ADP1653_REG_FAULT_FLT_OT (1 << 2)
|
||||
#define ADP1653_REG_FAULT_FLT_TMR (1 << 1)
|
||||
#define ADP1653_REG_FAULT_FLT_OV (1 << 0)
|
||||
|
||||
#define ADP1653_INDICATOR_INTENSITY_MIN 0
|
||||
#define ADP1653_INDICATOR_INTENSITY_STEP 2500
|
||||
#define ADP1653_INDICATOR_INTENSITY_MAX \
|
||||
(ADP1653_REG_OUT_SEL_ILED_MAX * ADP1653_INDICATOR_INTENSITY_STEP)
|
||||
#define ADP1653_INDICATOR_INTENSITY_uA_TO_REG(a) \
|
||||
((a) / ADP1653_INDICATOR_INTENSITY_STEP)
|
||||
#define ADP1653_INDICATOR_INTENSITY_REG_TO_uA(a) \
|
||||
((a) * ADP1653_INDICATOR_INTENSITY_STEP)
|
||||
|
||||
#define ADP1653_FLASH_INTENSITY_BASE 35
|
||||
#define ADP1653_FLASH_INTENSITY_STEP 15
|
||||
#define ADP1653_FLASH_INTENSITY_MIN \
|
||||
(ADP1653_FLASH_INTENSITY_BASE \
|
||||
+ ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN * ADP1653_FLASH_INTENSITY_STEP)
|
||||
#define ADP1653_FLASH_INTENSITY_MAX \
|
||||
(ADP1653_FLASH_INTENSITY_MIN + \
|
||||
(ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX - \
|
||||
ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN + 1) * \
|
||||
ADP1653_FLASH_INTENSITY_STEP)
|
||||
|
||||
#define ADP1653_FLASH_INTENSITY_mA_TO_REG(a) \
|
||||
((a) < ADP1653_FLASH_INTENSITY_BASE ? 0 : \
|
||||
(((a) - ADP1653_FLASH_INTENSITY_BASE) / ADP1653_FLASH_INTENSITY_STEP))
|
||||
#define ADP1653_FLASH_INTENSITY_REG_TO_mA(a) \
|
||||
((a) * ADP1653_FLASH_INTENSITY_STEP + ADP1653_FLASH_INTENSITY_BASE)
|
||||
|
||||
#define ADP1653_TORCH_INTENSITY_MIN \
|
||||
(ADP1653_FLASH_INTENSITY_BASE \
|
||||
+ ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN * ADP1653_FLASH_INTENSITY_STEP)
|
||||
#define ADP1653_TORCH_INTENSITY_MAX \
|
||||
(ADP1653_TORCH_INTENSITY_MIN + \
|
||||
(ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX - \
|
||||
ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN + 1) * \
|
||||
ADP1653_FLASH_INTENSITY_STEP)
|
||||
|
||||
struct adp1653_platform_data {
|
||||
int (*power)(struct v4l2_subdev *sd, int on);
|
||||
|
||||
u32 max_flash_timeout; /* flash light timeout in us */
|
||||
u32 max_flash_intensity; /* led intensity, flash mode */
|
||||
u32 max_torch_intensity; /* led intensity, torch mode */
|
||||
u32 max_indicator_intensity; /* indicator led intensity */
|
||||
};
|
||||
|
||||
#define to_adp1653_flash(sd) container_of(sd, struct adp1653_flash, subdev)
|
||||
|
||||
struct adp1653_flash {
|
||||
struct v4l2_subdev subdev;
|
||||
struct adp1653_platform_data *platform_data;
|
||||
|
||||
struct v4l2_ctrl_handler ctrls;
|
||||
struct v4l2_ctrl *led_mode;
|
||||
struct v4l2_ctrl *flash_timeout;
|
||||
struct v4l2_ctrl *flash_intensity;
|
||||
struct v4l2_ctrl *torch_intensity;
|
||||
struct v4l2_ctrl *indicator_intensity;
|
||||
|
||||
struct mutex power_lock;
|
||||
int power_count;
|
||||
int fault;
|
||||
};
|
||||
|
||||
#endif /* ADP1653_H */
|
||||
Loading…
Reference in New Issue
Block a user