diff options
Diffstat (limited to 'drivers/staging/media/atomisp/include/media/lm3554.h')
| -rw-r--r-- | drivers/staging/media/atomisp/include/media/lm3554.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/include/media/lm3554.h b/drivers/staging/media/atomisp/include/media/lm3554.h new file mode 100644 index 000000000000..03a916ade531 --- /dev/null +++ b/drivers/staging/media/atomisp/include/media/lm3554.h @@ -0,0 +1,130 @@ +/* + * include/media/lm3554.h + * + * Copyright (c) 2010-2012 Intel Corporation. All Rights Reserved. + * + * 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. + * + * + */ +#ifndef _LM3554_H_ +#define _LM3554_H_ + +#include <linux/videodev2.h> +#include <media/v4l2-subdev.h> + +#define LM3554_ID 3554 + +#define v4l2_queryctrl_entry_integer(_id, _name,\ + _minimum, _maximum, _step, \ + _default_value, _flags) \ + {\ + .id = (_id), \ + .type = V4L2_CTRL_TYPE_INTEGER, \ + .name = _name, \ + .minimum = (_minimum), \ + .maximum = (_maximum), \ + .step = (_step), \ + .default_value = (_default_value),\ + .flags = (_flags),\ + } +#define v4l2_queryctrl_entry_boolean(_id, _name,\ + _default_value, _flags) \ + {\ + .id = (_id), \ + .type = V4L2_CTRL_TYPE_BOOLEAN, \ + .name = _name, \ + .minimum = 0, \ + .maximum = 1, \ + .step = 1, \ + .default_value = (_default_value),\ + .flags = (_flags),\ + } + +#define s_ctrl_id_entry_integer(_id, _name, \ + _minimum, _maximum, _step, \ + _default_value, _flags, \ + _s_ctrl, _g_ctrl) \ + {\ + .qc = v4l2_queryctrl_entry_integer(_id, _name,\ + _minimum, _maximum, _step,\ + _default_value, _flags), \ + .s_ctrl = _s_ctrl, \ + .g_ctrl = _g_ctrl, \ + } + +#define s_ctrl_id_entry_boolean(_id, _name, \ + _default_value, _flags, \ + _s_ctrl, _g_ctrl) \ + {\ + .qc = v4l2_queryctrl_entry_boolean(_id, _name,\ + _default_value, _flags), \ + .s_ctrl = _s_ctrl, \ + .g_ctrl = _g_ctrl, \ + } + +/* Value settings for Flash Time-out Duration*/ +#define LM3554_DEFAULT_TIMEOUT 512U +#define LM3554_MIN_TIMEOUT 32U +#define LM3554_MAX_TIMEOUT 1024U +#define LM3554_TIMEOUT_STEPSIZE 32U + +/* Flash modes */ +#define LM3554_MODE_SHUTDOWN 0 +#define LM3554_MODE_INDICATOR 1 +#define LM3554_MODE_TORCH 2 +#define LM3554_MODE_FLASH 3 + +/* timer delay time */ +#define LM3554_TIMER_DELAY 5 + +/* Percentage <-> value macros */ +#define LM3554_MIN_PERCENT 0U +#define LM3554_MAX_PERCENT 100U +#define LM3554_CLAMP_PERCENTAGE(val) \ + clamp(val, LM3554_MIN_PERCENT, LM3554_MAX_PERCENT) + +#define LM3554_VALUE_TO_PERCENT(v, step) (((((unsigned long)(v)) * (step)) + 50) / 100) +#define LM3554_PERCENT_TO_VALUE(p, step) (((((unsigned long)(p)) * 100) + (step >> 1)) / (step)) + +/* Product specific limits + * TODO: get these from platform data */ +#define LM3554_FLASH_MAX_LVL 0x0F /* 1191mA */ + +/* Flash brightness, input is percentage, output is [0..15] */ +#define LM3554_FLASH_STEP \ + ((100ul * (LM3554_MAX_PERCENT) + ((LM3554_FLASH_MAX_LVL) >> 1)) / ((LM3554_FLASH_MAX_LVL))) +#define LM3554_FLASH_DEFAULT_BRIGHTNESS \ + LM3554_VALUE_TO_PERCENT(13, LM3554_FLASH_STEP) + +/* Torch brightness, input is percentage, output is [0..7] */ +#define LM3554_TORCH_STEP 1250 +#define LM3554_TORCH_DEFAULT_BRIGHTNESS \ + LM3554_VALUE_TO_PERCENT(2, LM3554_TORCH_STEP) + +/* Indicator brightness, input is percentage, output is [0..3] */ +#define LM3554_INDICATOR_STEP 2500 +#define LM3554_INDICATOR_DEFAULT_BRIGHTNESS \ + LM3554_VALUE_TO_PERCENT(1, LM3554_INDICATOR_STEP) + +/* + * lm3554_platform_data - Flash controller platform data + */ +struct lm3554_platform_data { + int gpio_torch; + int gpio_strobe; + int gpio_reset; + + unsigned int current_limit; + unsigned int envm_tx2; + unsigned int tx2_polarity; +}; + +#endif /* _LM3554_H_ */ |