drivers/media/video/omap34xxcam.h

   1 /*
   2  * omap34xxcam.h
   3  *
   4  * Copyright (C) 2006--2009 Nokia Corporation
   5  * Copyright (C) 2007--2009 Texas Instruments
   6  *
   7  * Contact: Sakari Ailus <sakari.ailus@nokia.com>
   8  *          Tuukka Toivonen <tuukka.o.toivonen@nokia.com>
   9  *
  10  * Originally based on the OMAP 2 camera driver.
  11  *
  12  * Written by Sakari Ailus <sakari.ailus@nokia.com>
  13  *            Tuukka Toivonen <tuukka.o.toivonen@nokia.com>
  14  *            Sergio Aguirre <saaguirre@ti.com>
  15  *            Mohit Jalori
  16  *            Sameer Venkatraman
  17  *            Leonides Martinez
  18  *
  19  * This program is free software; you can redistribute it and/or
  20  * modify it under the terms of the GNU General Public License
  21  * version 2 as published by the Free Software Foundation.
  22  *
  23  * This program is distributed in the hope that it will be useful, but
  24  * WITHOUT ANY WARRANTY; without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  26  * General Public License for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  31  * 02110-1301 USA
  32  *
  33  */
  34
  35 #ifndef OMAP34XXCAM_H
  36 #define OMAP34XXCAM_H
  37
  38 #include <media/v4l2-int-device.h>
  39 #include "isp/isp.h"
  40
  41 #define CAM_NAME                        "omap34xxcam"
  42 #define CAM_SHORT_NAME                  "omap3"
  43
  44 #define OMAP34XXCAM_XCLK_NONE   -1
  45 #define OMAP34XXCAM_XCLK_A      0
  46 #define OMAP34XXCAM_XCLK_B      1
  47
  48 #define OMAP34XXCAM_SLAVE_SENSOR        0
  49 #define OMAP34XXCAM_SLAVE_LENS          1
  50 #define OMAP34XXCAM_SLAVE_FLASH         2 /* This is the last slave! */
  51
  52 /* mask for omap34xxcam_slave_power_set */
  53 #define OMAP34XXCAM_SLAVE_POWER_SENSOR  (1 << OMAP34XXCAM_SLAVE_SENSOR)
  54 #define OMAP34XXCAM_SLAVE_POWER_LENS    (1 << OMAP34XXCAM_SLAVE_LENS)
  55 #define OMAP34XXCAM_SLAVE_POWER_SENSOR_LENS \
  56         (OMAP34XXCAM_SLAVE_POWER_SENSOR | OMAP34XXCAM_SLAVE_POWER_LENS)
  57 #define OMAP34XXCAM_SLAVE_POWER_FLASH   (1 << OMAP34XXCAM_SLAVE_FLASH)
  58 #define OMAP34XXCAM_SLAVE_POWER_ALL     -1
  59
  60 #define OMAP34XXCAM_VIDEODEVS           4
  61
  62 /* #define OMAP34XXCAM_POWEROFF_DELAY (2 * HZ) */
  63
  64 struct omap34xxcam_device;
  65 struct omap34xxcam_videodev;
  66
  67 /**
  68  * struct omap34xxcam_sensor_config - struct for vidioc_int_g_priv ioctl
  69  * @sensor_isp: Is sensor smart/SOC or raw
  70  * @capture_mem: Size limit to mmap buffers.
  71  * @ival_default: Default frame interval for sensor.
  72  */
  73 struct omap34xxcam_sensor_config {
  74         int sensor_isp;
  75         u32 capture_mem;
  76         struct v4l2_fract ival_default;
  77 };
  78
  79 struct omap34xxcam_lens_config {
  80 };
  81
  82 struct omap34xxcam_flash_config {
  83 };
  84
  85 struct omap34xxcam_hw_config {
  86         int dev_index; /* Index in omap34xxcam_sensors */
  87         int dev_minor; /* Video device minor number */
  88         int dev_type; /* OMAP34XXCAM_SLAVE_* */
  89         union {
  90                 struct omap34xxcam_sensor_config sensor;
  91                 struct omap34xxcam_lens_config lens;
  92                 struct omap34xxcam_flash_config flash;
  93         } u;
  94         int cur_input;
  95 };
  96
  97 /**
  98  * struct omap34xxcam_videodev - per /dev/video* structure
  99  * @mutex: serialises access to this structure
 100  * @cam: pointer to cam hw structure
 101  * @master: we are v4l2_int_device master
 102  * @sensor: sensor device
 103  * @lens: lens device
 104  * @flash: flash device
 105  * @slaves: how many slaves we have at the moment
 106  * @vfd: our video device
 107  * @index: index of this structure in cam->vdevs
 108  * @users: how many users we have
 109  * @power_state: Current power state
 110  * @power_state_wish: New power state when poweroff_timer expires
 111  * @power_state_mask: Bitmask of devices to set the new power state
 112  * @poweroff_timer: Timer for dispatching poweroff_work
 113  * @poweroff_work: Work for slave power state change
 114  * @sensor_config: ISP-speicific sensor configuration
 115  * @lens_config: ISP-speicific lens configuration
 116  * @flash_config: ISP-speicific flash configuration
 117  * @streaming: streaming file handle, if streaming is enabled
 118  * @want_timeperframe: Desired timeperframe
 119  * @want_pix: Desired pix
 120  * @pix: Current pix
 121  */
 122 struct omap34xxcam_videodev {
 123         struct mutex mutex; /* serialises access to this structure */
 124
 125         struct omap34xxcam_device *cam;
 126         struct v4l2_int_device master;
 127
 128 #define vdev_sensor slave[OMAP34XXCAM_SLAVE_SENSOR]
 129 #define vdev_lens slave[OMAP34XXCAM_SLAVE_LENS]
 130 #define vdev_flash slave[OMAP34XXCAM_SLAVE_FLASH]
 131         struct v4l2_int_device *slave[OMAP34XXCAM_SLAVE_FLASH + 1];
 132
 133         /* number of slaves attached */
 134         int slaves;
 135
 136         /*** video device parameters ***/
 137         struct video_device *vfd;
 138
 139         /*** general driver state information ***/
 140         int index;
 141         atomic_t users;
 142         enum v4l2_power power_state[OMAP34XXCAM_SLAVE_FLASH + 1];
 143 #ifdef OMAP34XXCAM_POWEROFF_DELAY
 144         enum v4l2_power power_state_wish;
 145         int power_state_mask;
 146         struct timer_list poweroff_timer;
 147         struct work_struct poweroff_work;
 148 #endif /* OMAP34XXCAM_POWEROFF_DELAY */
 149
 150 #define vdev_sensor_config slave_config[OMAP34XXCAM_SLAVE_SENSOR].u.sensor
 151 #define vdev_lens_config slave_config[OMAP34XXCAM_SLAVE_LENS].u.lens
 152 #define vdev_flash_config slave_config[OMAP34XXCAM_SLAVE_FLASH].u.flash
 153         struct omap34xxcam_hw_config slave_config[OMAP34XXCAM_SLAVE_FLASH + 1];
 154
 155 #define vdev_sensor_mode slave_mode[OMAP34XXCAM_SLAVE_SENSOR]
 156 #define vdev_lens_mode slave_mode[OMAP34XXCAM_SLAVE_LENS]
 157 #define vdev_flash_mode slave_mode[OMAP34XXCAM_SLAVE_FLASH]
 158         int slave_mode[OMAP34XXCAM_SLAVE_FLASH + 1];
 159
 160         /*** capture data ***/
 161         struct file *streaming;
 162         struct v4l2_fract want_timeperframe;
 163         struct v4l2_pix_format want_pix;
 164         struct v4l2_pix_format pix;
 165 };
 166
 167 /**
 168  * struct omap34xxcam_device - per-device data structure
 169  * @vdevs: /dev/video specific structures
 170  */
 171 struct omap34xxcam_device {
 172         struct omap34xxcam_videodev vdevs[OMAP34XXCAM_VIDEODEVS];
 173         struct device *isp;
 174 };
 175
 176 /**
 177  * struct omap34xxcam_fh - per-filehandle data structure
 178  * @vbq_lock: spinlock for the videobuf queue
 179  * @vbq: V4L2 video buffer queue structure
 180  * @field_count: field counter for videobuf_buffer
 181  * @vdev: our /dev/video specific structure
 182  */
 183 struct omap34xxcam_fh {
 184         spinlock_t vbq_lock; /* spinlock for the videobuf queue */
 185         struct videobuf_queue vbq;
 186         atomic_t field_count;
 187         struct omap34xxcam_videodev *vdev;
 188 };
 189
 190 #endif /* ifndef OMAP34XXCAM_H */