diff options
Diffstat (limited to 'drivers/media/video/omap3isp/ispccdc.h')
| -rw-r--r-- | drivers/media/video/omap3isp/ispccdc.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/drivers/media/video/omap3isp/ispccdc.h b/drivers/media/video/omap3isp/ispccdc.h new file mode 100644 index 000000000000..d403af5d31d2 --- /dev/null +++ b/drivers/media/video/omap3isp/ispccdc.h @@ -0,0 +1,219 @@ +/* + * ispccdc.h + * + * TI OMAP3 ISP - CCDC module + * + * Copyright (C) 2009-2010 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. + * + * 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 OMAP3_ISP_CCDC_H +#define OMAP3_ISP_CCDC_H + +#include <linux/omap3isp.h> +#include <linux/workqueue.h> + +#include "ispvideo.h" + +enum ccdc_input_entity { + CCDC_INPUT_NONE, + CCDC_INPUT_PARALLEL, + CCDC_INPUT_CSI2A, + CCDC_INPUT_CCP2B, + CCDC_INPUT_CSI2C +}; + +#define CCDC_OUTPUT_MEMORY (1 << 0) +#define CCDC_OUTPUT_PREVIEW (1 << 1) +#define CCDC_OUTPUT_RESIZER (1 << 2) + +#define OMAP3ISP_CCDC_NEVENTS 16 + +/* + * struct ispccdc_syncif - Structure for Sync Interface between sensor and CCDC + * @ccdc_mastermode: Master mode. 1 - Master, 0 - Slave. + * @fldstat: Field state. 0 - Odd Field, 1 - Even Field. + * @datsz: Data size. + * @fldmode: 0 - Progressive, 1 - Interlaced. + * @datapol: 0 - Positive, 1 - Negative. + * @fldpol: 0 - Positive, 1 - Negative. + * @hdpol: 0 - Positive, 1 - Negative. + * @vdpol: 0 - Positive, 1 - Negative. + * @fldout: 0 - Input, 1 - Output. + * @hs_width: Width of the Horizontal Sync pulse, used for HS/VS Output. + * @vs_width: Width of the Vertical Sync pulse, used for HS/VS Output. + * @ppln: Number of pixels per line, used for HS/VS Output. + * @hlprf: Number of half lines per frame, used for HS/VS Output. + * @bt_r656_en: 1 - Enable ITU-R BT656 mode, 0 - Sync mode. + */ +struct ispccdc_syncif { + u8 ccdc_mastermode; + u8 fldstat; + u8 datsz; + u8 fldmode; + u8 datapol; + u8 fldpol; + u8 hdpol; + u8 vdpol; + u8 fldout; + u8 hs_width; + u8 vs_width; + u8 ppln; + u8 hlprf; + u8 bt_r656_en; +}; + +/* + * struct ispccdc_vp - Structure for Video Port parameters + * @pixelclk: Input pixel clock in Hz + */ +struct ispccdc_vp { + unsigned int pixelclk; +}; + +enum ispccdc_lsc_state { + LSC_STATE_STOPPED = 0, + LSC_STATE_STOPPING = 1, + LSC_STATE_RUNNING = 2, + LSC_STATE_RECONFIG = 3, +}; + +struct ispccdc_lsc_config_req { + struct list_head list; + struct omap3isp_ccdc_lsc_config config; + unsigned char enable; + u32 table; + struct iovm_struct *iovm; +}; + +/* + * ispccdc_lsc - CCDC LSC parameters + * @update_config: Set when user changes config + * @request_enable: Whether LSC is requested to be enabled + * @config: LSC config set by user + * @update_table: Set when user provides a new LSC table to table_new + * @table_new: LSC table set by user, ISP address + * @table_inuse: LSC table currently in use, ISP address + */ +struct ispccdc_lsc { + enum ispccdc_lsc_state state; + struct work_struct table_work; + + /* LSC queue of configurations */ + spinlock_t req_lock; + struct ispccdc_lsc_config_req *request; /* requested configuration */ + struct ispccdc_lsc_config_req *active; /* active configuration */ + struct list_head free_queue; /* configurations for freeing */ +}; + +#define CCDC_STOP_NOT_REQUESTED 0x00 +#define CCDC_STOP_REQUEST 0x01 +#define CCDC_STOP_EXECUTED (0x02 | CCDC_STOP_REQUEST) +#define CCDC_STOP_CCDC_FINISHED 0x04 +#define CCDC_STOP_LSC_FINISHED 0x08 +#define CCDC_STOP_FINISHED \ + (CCDC_STOP_EXECUTED | CCDC_STOP_CCDC_FINISHED | CCDC_STOP_LSC_FINISHED) + +#define CCDC_EVENT_VD1 0x10 +#define CCDC_EVENT_VD0 0x20 +#define CCDC_EVENT_LSC_DONE 0x40 + +/* Sink and source CCDC pads */ +#define CCDC_PAD_SINK 0 +#define CCDC_PAD_SOURCE_OF 1 +#define CCDC_PAD_SOURCE_VP 2 +#define CCDC_PADS_NUM 3 + +/* + * struct isp_ccdc_device - Structure for the CCDC module to store its own + * information + * @subdev: V4L2 subdevice + * @pads: Sink and source media entity pads + * @formats: Active video formats + * @input: Active input + * @output: Active outputs + * @video_out: Output video node + * @error: A hardware error occured during capture + * @alaw: A-law compression enabled (1) or disabled (0) + * @lpf: Low pass filter enabled (1) or disabled (0) + * @obclamp: Optical-black clamp enabled (1) or disabled (0) + * @fpc_en: Faulty pixels correction enabled (1) or disabled (0) + * @blcomp: Black level compensation configuration + * @clamp: Optical-black or digital clamp configuration + * @fpc: Faulty pixels correction configuration + * @lsc: Lens shading compensation configuration + * @update: Bitmask of controls to update during the next interrupt + * @shadow_update: Controls update in progress by userspace + * @syncif: Interface synchronization configuration + * @vpcfg: Video port configuration + * @underrun: A buffer underrun occured and a new buffer has been queued + * @state: Streaming state + * @lock: Serializes shadow_update with interrupt handler + * @wait: Wait queue used to stop the module + * @stopping: Stopping state + * @ioctl_lock: Serializes ioctl calls and LSC requests freeing + */ +struct isp_ccdc_device { + struct v4l2_subdev subdev; + struct media_pad pads[CCDC_PADS_NUM]; + struct v4l2_mbus_framefmt formats[CCDC_PADS_NUM]; + + enum ccdc_input_entity input; + unsigned int output; + struct isp_video video_out; + unsigned int error; + + unsigned int alaw:1, + lpf:1, + obclamp:1, + fpc_en:1; + struct omap3isp_ccdc_blcomp blcomp; + struct omap3isp_ccdc_bclamp clamp; + struct omap3isp_ccdc_fpc fpc; + struct ispccdc_lsc lsc; + unsigned int update; + unsigned int shadow_update; + + struct ispccdc_syncif syncif; + struct ispccdc_vp vpcfg; + + unsigned int underrun:1; + enum isp_pipeline_stream_state state; + spinlock_t lock; + wait_queue_head_t wait; + unsigned int stopping; + struct mutex ioctl_lock; +}; + +struct isp_device; + +int omap3isp_ccdc_init(struct isp_device *isp); +void omap3isp_ccdc_cleanup(struct isp_device *isp); +int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc, + struct v4l2_device *vdev); +void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc); + +int omap3isp_ccdc_busy(struct isp_ccdc_device *isp_ccdc); +int omap3isp_ccdc_isr(struct isp_ccdc_device *isp_ccdc, u32 events); +void omap3isp_ccdc_restore_context(struct isp_device *isp); +void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc, + unsigned int *max_rate); + +#endif /* OMAP3_ISP_CCDC_H */ |