4 * TI OMAP3 ISP - Statistics core
6 * Copyright (C) 2010 Nokia Corporation
7 * Copyright (C) 2009 Texas Instruments, Inc
9 * Contacts: David Cohen <dacohen@gmail.com>
10 * Laurent Pinchart <laurent.pinchart@ideasonboard.com>
11 * Sakari Ailus <sakari.ailus@iki.fi>
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
28 #ifndef OMAP3_ISP_STAT_H
29 #define OMAP3_ISP_STAT_H
31 #include <linux/types.h>
32 #include <linux/omap3isp.h>
34 #include <media/v4l2-event.h>
39 #define STAT_MAX_BUFS 5
40 #define STAT_NEVENTS 8
42 #define STAT_BUF_DONE 0 /* Buffer is ready */
43 #define STAT_NO_BUF 1 /* An error has occurred */
44 #define STAT_BUF_WAITING_DMA 2 /* Histogram only: DMA is running */
48 struct ispstat_buffer
{
49 unsigned long iommu_addr
;
50 struct iovm_struct
*iovm
;
62 * Validate new params configuration.
63 * new_conf->buf_size value must be changed to the exact buffer size
64 * necessary for the new configuration if it's smaller.
66 int (*validate_params
)(struct ispstat
*stat
, void *new_conf
);
69 * Save new params configuration.
70 * stat->priv->buf_size value must be set to the exact buffer size for
71 * the new configuration.
72 * stat->update is set to 1 if new configuration is different than
75 void (*set_params
)(struct ispstat
*stat
, void *new_conf
);
77 /* Apply stored configuration. */
78 void (*setup_regs
)(struct ispstat
*stat
, void *priv
);
80 /* Enable/Disable module. */
81 void (*enable
)(struct ispstat
*stat
, int enable
);
83 /* Verify is module is busy. */
84 int (*busy
)(struct ispstat
*stat
);
86 /* Used for specific operations during generic buf process task. */
87 int (*buf_process
)(struct ispstat
*stat
);
90 enum ispstat_state_t
{
99 struct v4l2_subdev subdev
;
100 struct media_pad pad
; /* sink pad */
103 unsigned configured
:1;
105 unsigned buf_processing
:1;
106 unsigned sbl_ovl_recover
:1;
109 enum ispstat_state_t state
; /* enabling/disabling state */
110 struct omap_dma_channel_params dma_config
;
111 struct isp_device
*isp
;
112 void *priv
; /* pointer to priv config struct */
113 void *recover_priv
; /* pointer to recover priv configuration */
114 struct mutex ioctl_lock
; /* serialize private ioctl */
116 const struct ispstat_ops
*ops
;
125 unsigned long event_type
;
126 struct ispstat_buffer
*buf
;
127 struct ispstat_buffer
*active_buf
;
128 struct ispstat_buffer
*locked_buf
;
131 struct ispstat_generic_config
{
133 * Fields must be in the same order as in:
134 * - omap3isp_h3a_aewb_config
135 * - omap3isp_h3a_af_config
136 * - omap3isp_hist_config
142 int omap3isp_stat_config(struct ispstat
*stat
, void *new_conf
);
143 int omap3isp_stat_request_statistics(struct ispstat
*stat
,
144 struct omap3isp_stat_data
*data
);
145 int omap3isp_stat_init(struct ispstat
*stat
, const char *name
,
146 const struct v4l2_subdev_ops
*sd_ops
);
147 void omap3isp_stat_cleanup(struct ispstat
*stat
);
148 int omap3isp_stat_subscribe_event(struct v4l2_subdev
*subdev
,
150 struct v4l2_event_subscription
*sub
);
151 int omap3isp_stat_unsubscribe_event(struct v4l2_subdev
*subdev
,
153 struct v4l2_event_subscription
*sub
);
154 int omap3isp_stat_s_stream(struct v4l2_subdev
*subdev
, int enable
);
156 int omap3isp_stat_busy(struct ispstat
*stat
);
157 int omap3isp_stat_pcr_busy(struct ispstat
*stat
);
158 void omap3isp_stat_suspend(struct ispstat
*stat
);
159 void omap3isp_stat_resume(struct ispstat
*stat
);
160 int omap3isp_stat_enable(struct ispstat
*stat
, u8 enable
);
161 void omap3isp_stat_sbl_overflow(struct ispstat
*stat
);
162 void omap3isp_stat_isr(struct ispstat
*stat
);
163 void omap3isp_stat_isr_frame_sync(struct ispstat
*stat
);
164 void omap3isp_stat_dma_isr(struct ispstat
*stat
);
165 int omap3isp_stat_register_entities(struct ispstat
*stat
,
166 struct v4l2_device
*vdev
);
167 void omap3isp_stat_unregister_entities(struct ispstat
*stat
);
169 #endif /* OMAP3_ISP_STAT_H */