diff options
Diffstat (limited to 'drivers/staging/camera_flash/adp1653.h')
| -rwxr-xr-x | drivers/staging/camera_flash/adp1653.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/staging/camera_flash/adp1653.h b/drivers/staging/camera_flash/adp1653.h new file mode 100755 index 00000000000..3035ab56d99 --- /dev/null +++ b/drivers/staging/camera_flash/adp1653.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * License terms: GNU General Public License (GPL), version 2. + */ +#ifndef __ADP1653_H__ +#define __ADP1653_H__ + +#include <linux/types.h> +#define ADP1653_ID (0) /*chip does not give any id :) so be it zero!*/ + +#define OUTPUT_SEL_REG (0x00) +#define CONFIG_TIMER_REG (0x01) +#define SW_STROBE_REG (0x02) +#define FAULT_STATUS_REG (0x03) + +/* Fault codes, FALUT_STATUS_REG bits */ +#define OVER_VOLTAGE_FAULT (0x01) +#define TIMEOUT_FAULT (0x02) +#define OVER_TEMPERATURE_FAULT (0x04) +#define SHORT_CIRCUIT_FAULT (0x08) + +/*CONFIG_TIMER_REG bits*/ +#define TIMER_ENABLE (0x10) + +struct adp1653_priv_data{ + struct i2c_client *i2c_client; + unsigned long curr_mode; + unsigned long enable_gpio; + unsigned long strobe_gpio; + unsigned long irq_no; + unsigned long status; + uint8_t fault; + uint8_t flash_intensity; + uint8_t flash_duration; + uint8_t torch_intensity; + uint8_t indicator_intensity; +}; + +/*Intensity current limits in Micro Amps*/ +/* over 250mA flash current is reduced */ +/* do not know why, neither really care about */ +//#define FLASH_MAX_INTENSITY (500000) /*code - 31*/ +#define FLASH_MAX_INTENSITY (250000) +#define FLASH_MIN_INTENSITY (215000) /*code - 12*/ +#define TORCH_MAX_INTENSITY (200000) /*code - 11*/ +#define TORCH_MIN_INTENSITY (50000) /*code - 1*/ +#define ILED_MAX_INTENSITY (17500) /*Code - 7*/ +#define ILED_MIN_INTENSITY (2500) /*code - 1*/ + +#define FLASH_MAX_STROBE_DURATION (820000) /*820 uSec*/ + +#define DURATION_USEC_TO_CODE(_code,_duration) do{ \ + if(_duration > FLASH_MAX_STROBE_DURATION) \ + _duration = FLASH_MAX_STROBE_DURATION; \ + _code = (FLASH_MAX_STROBE_DURATION - _duration) / 54600;\ +}while(0); + +#define HPLED_UAMP_TO_CODE(_current) ((_current - 35000) / 15000) + +#define FLASH_UAMP_TO_CODE(_code,_current){ \ + if(_current > FLASH_MAX_INTENSITY) \ + _current = FLASH_MAX_INTENSITY; \ + if(_current < FLASH_MIN_INTENSITY) \ + _current = FLASH_MIN_INTENSITY; \ + _code = HPLED_UAMP_TO_CODE(_current); \ +}while(0) + +#define TORCH_UAMP_TO_CODE(_code,_current){ \ + if(_current > TORCH_MAX_INTENSITY) \ + _current = TORCH_MAX_INTENSITY; \ + if(_current < TORCH_MIN_INTENSITY) \ + _current = TORCH_MIN_INTENSITY; \ + _code = HPLED_UAMP_TO_CODE(_current); \ +}while(0) + +#define ILED_UAMP_TO_CODE(_code,_current) do { \ + if(_current > ILED_MAX_INTENSITY) \ + _current = ILED_MAX_INTENSITY; \ + _code = _current / ILED_MIN_INTENSITY; /* Min current: 2.5mA/2500uA*/ \ +}while(0) + +#endif |