Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / media / video / omap3isp / ispstat.h
blob9b7c8654dc8a4cadea05dd1ff629ad35b8ebae85
1 /*
2 * ispstat.h
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
25 * 02110-1301 USA
28 #ifndef OMAP3_ISP_STAT_H
29 #define OMAP3_ISP_STAT_H
31 #include <linux/types.h>
32 #include <linux/omap3isp.h>
33 #include <plat/dma.h>
34 #include <media/v4l2-event.h>
36 #include "isp.h"
37 #include "ispvideo.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 */
46 struct ispstat;
48 struct ispstat_buffer {
49 unsigned long iommu_addr;
50 struct iovm_struct *iovm;
51 void *virt_addr;
52 dma_addr_t dma_addr;
53 struct timeval ts;
54 u32 buf_size;
55 u32 frame_number;
56 u16 config_counter;
57 u8 empty;
60 struct ispstat_ops {
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
73 * current one.
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 {
91 ISPSTAT_DISABLED = 0,
92 ISPSTAT_DISABLING,
93 ISPSTAT_ENABLED,
94 ISPSTAT_ENABLING,
95 ISPSTAT_SUSPENDED,
98 struct ispstat {
99 struct v4l2_subdev subdev;
100 struct media_pad pad; /* sink pad */
102 /* Control */
103 unsigned configured:1;
104 unsigned update:1;
105 unsigned buf_processing:1;
106 unsigned sbl_ovl_recover:1;
107 u8 inc_config;
108 atomic_t buf_err;
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;
118 /* Buffer */
119 u8 wait_acc_frames;
120 u16 config_counter;
121 u32 frame_number;
122 u32 buf_size;
123 u32 buf_alloc_size;
124 int dma_ch;
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
138 u32 buf_size;
139 u16 config_counter;
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,
149 struct v4l2_fh *fh,
150 struct v4l2_event_subscription *sub);
151 int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
152 struct v4l2_fh *fh,
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 */