diff options
Diffstat (limited to 'drivers/media/platform/omap3isp/ispresizer.h')
| -rw-r--r-- | drivers/media/platform/omap3isp/ispresizer.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/media/platform/omap3isp/ispresizer.h b/drivers/media/platform/omap3isp/ispresizer.h new file mode 100644 index 000000000..541454291 --- /dev/null +++ b/drivers/media/platform/omap3isp/ispresizer.h @@ -0,0 +1,139 @@ +/* + * ispresizer.h + * + * TI OMAP3 ISP - Resizer module + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc + * + * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * Sakari Ailus <sakari.ailus@iki.fi> + * + * 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. + */ + +#ifndef OMAP3_ISP_RESIZER_H +#define OMAP3_ISP_RESIZER_H + +#include <linux/spinlock.h> +#include <linux/types.h> + +/* + * Constants for filter coefficients count + */ +#define COEFF_CNT 32 + +/* + * struct isprsz_coef - Structure for resizer filter coefficients. + * @h_filter_coef_4tap: Horizontal filter coefficients for 8-phase/4-tap + * mode (.5x-4x) + * @v_filter_coef_4tap: Vertical filter coefficients for 8-phase/4-tap + * mode (.5x-4x) + * @h_filter_coef_7tap: Horizontal filter coefficients for 4-phase/7-tap + * mode (.25x-.5x) + * @v_filter_coef_7tap: Vertical filter coefficients for 4-phase/7-tap + * mode (.25x-.5x) + */ +struct isprsz_coef { + u16 h_filter_coef_4tap[32]; + u16 v_filter_coef_4tap[32]; + /* Every 8th value is a dummy value in the following arrays: */ + u16 h_filter_coef_7tap[32]; + u16 v_filter_coef_7tap[32]; +}; + +/* Chrominance horizontal algorithm */ +enum resizer_chroma_algo { + RSZ_THE_SAME = 0, /* Chrominance the same as Luminance */ + RSZ_BILINEAR = 1, /* Chrominance uses bilinear interpolation */ +}; + +/* Resizer input type select */ +enum resizer_colors_type { + RSZ_YUV422 = 0, /* YUV422 color is interleaved */ + RSZ_COLOR8 = 1, /* Color separate data on 8 bits */ +}; + +/* + * Structure for horizontal and vertical resizing value + */ +struct resizer_ratio { + u32 horz; + u32 vert; +}; + +/* + * Structure for luminance enhancer parameters. + */ +struct resizer_luma_yenh { + u8 algo; /* algorithm select. */ + u8 gain; /* maximum gain. */ + u8 slope; /* slope. */ + u8 core; /* core offset. */ +}; + +enum resizer_input_entity { + RESIZER_INPUT_NONE, + RESIZER_INPUT_VP, /* input video port - prev or ccdc */ + RESIZER_INPUT_MEMORY, +}; + +/* Sink and source resizer pads */ +#define RESZ_PAD_SINK 0 +#define RESZ_PAD_SOURCE 1 +#define RESZ_PADS_NUM 2 + +/* + * struct isp_res_device - OMAP3 ISP resizer module + * @lock: Protects formats and crop rectangles between set_selection and IRQ + * @crop.request: Crop rectangle requested by the user + * @crop.active: Active crop rectangle (based on hardware requirements) + */ +struct isp_res_device { + struct v4l2_subdev subdev; + struct media_pad pads[RESZ_PADS_NUM]; + struct v4l2_mbus_framefmt formats[RESZ_PADS_NUM]; + + enum resizer_input_entity input; + struct isp_video video_in; + struct isp_video video_out; + + u32 addr_base; /* stored source buffer address in memory mode */ + u32 crop_offset; /* additional offset for crop in memory mode */ + struct resizer_ratio ratio; + int pm_state; + unsigned int applycrop:1; + enum isp_pipeline_stream_state state; + wait_queue_head_t wait; + atomic_t stopping; + spinlock_t lock; + + struct { + struct v4l2_rect request; + struct v4l2_rect active; + } crop; +}; + +struct isp_device; + +int omap3isp_resizer_init(struct isp_device *isp); +void omap3isp_resizer_cleanup(struct isp_device *isp); + +int omap3isp_resizer_register_entities(struct isp_res_device *res, + struct v4l2_device *vdev); +void omap3isp_resizer_unregister_entities(struct isp_res_device *res); +void omap3isp_resizer_isr_frame_sync(struct isp_res_device *res); +void omap3isp_resizer_isr(struct isp_res_device *isp_res); + +void omap3isp_resizer_max_rate(struct isp_res_device *res, + unsigned int *max_rate); + +void omap3isp_resizer_suspend(struct isp_res_device *isp_res); + +void omap3isp_resizer_resume(struct isp_res_device *isp_res); + +int omap3isp_resizer_busy(struct isp_res_device *isp_res); + +#endif /* OMAP3_ISP_RESIZER_H */ |