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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 55c8504672adfb8065da5196ce1cce7db97532d0 / . / drivers / media / platform / omap3isp / ispstat.h
blob: 9b7c8654dc8a4cadea05dd1ff629ad35b8ebae85 [file] [log] [blame]
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]1/*
2 * ispstat.h
3 *
4 * TI OMAP3 ISP - Statistics core
5 *
6 * Copyright (C) 2010 Nokia Corporation
7 * Copyright (C) 2009 Texas Instruments, Inc
8 *
9 * Contacts: David Cohen <dacohen@gmail.com>
10 * Laurent Pinchart <laurent.pinchart@ideasonboard.com>
11 * Sakari Ailus <sakari.ailus@iki.fi>
12 *
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.
16 *
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.
21 *
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
26 */
27
28#ifndef OMAP3_ISP_STAT_H
29#define OMAP3_ISP_STAT_H
30
31#include <linux/types.h>
32#include <linux/omap3isp.h>
33#include <plat/dma.h>
34#include <media/v4l2-event.h>
35
36#include "isp.h"
37#include "ispvideo.h"
38
39#define STAT_MAX_BUFS 5
40#define STAT_NEVENTS 8
41
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 */
45
46struct ispstat;
47
48struct 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;
58};
59
60struct ispstat_ops {
61 /*
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.
65 */
66 int (*validate_params)(struct ispstat *stat, void *new_conf);
67
68 /*
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.
74 */
75 void (*set_params)(struct ispstat *stat, void *new_conf);
76
77 /* Apply stored configuration. */
78 void (*setup_regs)(struct ispstat *stat, void *priv);
79
80 /* Enable/Disable module. */
81 void (*enable)(struct ispstat *stat, int enable);
82
83 /* Verify is module is busy. */
84 int (*busy)(struct ispstat *stat);
85
86 /* Used for specific operations during generic buf process task. */
87 int (*buf_process)(struct ispstat *stat);
88};
89
90enum ispstat_state_t {
91 ISPSTAT_DISABLED = 0,
92 ISPSTAT_DISABLING,
93 ISPSTAT_ENABLED,
94 ISPSTAT_ENABLING,
95 ISPSTAT_SUSPENDED,
96};
97
98struct ispstat {
99 struct v4l2_subdev subdev;
100 struct media_pad pad; /* sink pad */
101
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 */
115
116 const struct ispstat_ops *ops;
117
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;
129};
130
131struct ispstat_generic_config {
132 /*
133 * Fields must be in the same order as in:
David Cohenb5feda92011-03-01 12:17:40 -0300[diff] [blame]134 * - omap3isp_h3a_aewb_config
135 * - omap3isp_h3a_af_config
136 * - omap3isp_hist_config
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]137 */
138 u32 buf_size;
139 u16 config_counter;
140};
141
142int omap3isp_stat_config(struct ispstat *stat, void *new_conf);
143int omap3isp_stat_request_statistics(struct ispstat *stat,
144 struct omap3isp_stat_data *data);
145int omap3isp_stat_init(struct ispstat *stat, const char *name,
146 const struct v4l2_subdev_ops *sd_ops);
Laurent Pinchart63b4ca22011-09-22 16:54:34 -0300[diff] [blame]147void omap3isp_stat_cleanup(struct ispstat *stat);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]148int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,
149 struct v4l2_fh *fh,
Laurent Pinchart55c85042012-10-12 11:20:10 -0300[diff] [blame^]150 struct v4l2_event_subscription *sub);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]151int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
152 struct v4l2_fh *fh,
Laurent Pinchart55c85042012-10-12 11:20:10 -0300[diff] [blame^]153 struct v4l2_event_subscription *sub);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]154int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);
155
156int omap3isp_stat_busy(struct ispstat *stat);
157int omap3isp_stat_pcr_busy(struct ispstat *stat);
158void omap3isp_stat_suspend(struct ispstat *stat);
159void omap3isp_stat_resume(struct ispstat *stat);
160int omap3isp_stat_enable(struct ispstat *stat, u8 enable);
161void omap3isp_stat_sbl_overflow(struct ispstat *stat);
162void omap3isp_stat_isr(struct ispstat *stat);
163void omap3isp_stat_isr_frame_sync(struct ispstat *stat);
164void omap3isp_stat_dma_isr(struct ispstat *stat);
165int omap3isp_stat_register_entities(struct ispstat *stat,
166 struct v4l2_device *vdev);
167void omap3isp_stat_unregister_entities(struct ispstat *stat);
168
169#endif /* OMAP3_ISP_STAT_H */