diff options
Diffstat (limited to 'drivers/staging/media/atomisp/i2c/imx/dw9718.h')
-rw-r--r-- | drivers/staging/media/atomisp/i2c/imx/dw9718.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/i2c/imx/dw9718.h b/drivers/staging/media/atomisp/i2c/imx/dw9718.h new file mode 100644 index 0000000..4a1040c --- /dev/null +++ b/drivers/staging/media/atomisp/i2c/imx/dw9718.h @@ -0,0 +1,64 @@ +/* + * Support for dw9719 vcm driver. + * + * Copyright (c) 2014 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. + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + */ + +#ifndef __DW9718_H__ +#define __DW9718_H__ + +#include "../../include/linux/atomisp_platform.h" +#include <linux/types.h> + +#define DW9718_VCM_ADDR (0x18 >> 1) + +/* dw9718 device structure */ +struct dw9718_device { + struct timespec timestamp_t_focus_abs; + s16 number_of_steps; + bool initialized; /* true if dw9718 is detected */ + s32 focus; /* Current focus value */ + struct timespec focus_time; /* Time when focus was last time set */ + __u8 buffer[4]; /* Used for i2c transactions */ + const struct camera_af_platform_data *platform_data; + __u8 power_on; +}; + +#define DW9718_MAX_FOCUS_POS 1023 + +/* Register addresses */ +#define DW9718_PD 0x00 +#define DW9718_CONTROL 0x01 +#define DW9718_DATA_M 0x02 +#define DW9718_DATA_L 0x03 +#define DW9718_SW 0x04 +#define DW9718_SACT 0x05 +#define DW9718_FLAG 0x10 + +#define DW9718_CONTROL_SW_LINEAR BIT(0) +#define DW9718_CONTROL_S_SAC4 (BIT(1) | BIT(3)) +#define DW9718_CONTROL_OCP_DISABLE BIT(4) +#define DW9718_CONTROL_UVLO_DISABLE BIT(5) + +#define DW9718_SACT_MULT_TWO 0x00 +#define DW9718_SACT_PERIOD_8_8MS 0x19 +#define DW9718_SACT_DEFAULT_VAL 0x60 + +#define DW9718_DEFAULT_FOCUS_POSITION 300 + +#endif /* __DW9718_H__ */ |