Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / platform / omap3isp / ispstat.h

diff --git a/kernel/drivers/media/platform/omap3isp/ispstat.h b/kernel/drivers/media/platform/omap3isp/ispstat.h
new file mode 100644 (file)
index 0000000..b79380d
--- /dev/null
+++ b/kernel/drivers/media/platform/omap3isp/ispstat.h
@@ -0,0 +1,157 @@
+/*
+ * ispstat.h
+ *
+ * TI OMAP3 ISP - Statistics core
+ *
+ * Copyright (C) 2010 Nokia Corporation
+ * Copyright (C) 2009 Texas Instruments, Inc
+ *
+ * Contacts: David Cohen <dacohen@gmail.com>
+ *          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.
+ */
+
+#ifndef OMAP3_ISP_STAT_H
+#define OMAP3_ISP_STAT_H
+
+#include <linux/types.h>
+#include <linux/omap3isp.h>
+#include <media/v4l2-event.h>
+
+#include "isp.h"
+#include "ispvideo.h"
+
+#define STAT_MAX_BUFS          5
+#define STAT_NEVENTS           8
+
+#define STAT_BUF_DONE          0       /* Buffer is ready */
+#define STAT_NO_BUF            1       /* An error has occurred */
+#define STAT_BUF_WAITING_DMA   2       /* Histogram only: DMA is running */
+
+struct dma_chan;
+struct ispstat;
+
+struct ispstat_buffer {
+       struct sg_table sgt;
+       void *virt_addr;
+       dma_addr_t dma_addr;
+       struct timespec ts;
+       u32 buf_size;
+       u32 frame_number;
+       u16 config_counter;
+       u8 empty;
+};
+
+struct ispstat_ops {
+       /*
+        * Validate new params configuration.
+        * new_conf->buf_size value must be changed to the exact buffer size
+        * necessary for the new configuration if it's smaller.
+        */
+       int (*validate_params)(struct ispstat *stat, void *new_conf);
+
+       /*
+        * Save new params configuration.
+        * stat->priv->buf_size value must be set to the exact buffer size for
+        * the new configuration.
+        * stat->update is set to 1 if new configuration is different than
+        * current one.
+        */
+       void (*set_params)(struct ispstat *stat, void *new_conf);
+
+       /* Apply stored configuration. */
+       void (*setup_regs)(struct ispstat *stat, void *priv);
+
+       /* Enable/Disable module. */
+       void (*enable)(struct ispstat *stat, int enable);
+
+       /* Verify is module is busy. */
+       int (*busy)(struct ispstat *stat);
+
+       /* Used for specific operations during generic buf process task. */
+       int (*buf_process)(struct ispstat *stat);
+};
+
+enum ispstat_state_t {
+       ISPSTAT_DISABLED = 0,
+       ISPSTAT_DISABLING,
+       ISPSTAT_ENABLED,
+       ISPSTAT_ENABLING,
+       ISPSTAT_SUSPENDED,
+};
+
+struct ispstat {
+       struct v4l2_subdev subdev;
+       struct media_pad pad;   /* sink pad */
+
+       /* Control */
+       unsigned configured:1;
+       unsigned update:1;
+       unsigned buf_processing:1;
+       unsigned sbl_ovl_recover:1;
+       u8 inc_config;
+       atomic_t buf_err;
+       enum ispstat_state_t state;     /* enabling/disabling state */
+       struct isp_device *isp;
+       void *priv;             /* pointer to priv config struct */
+       void *recover_priv;     /* pointer to recover priv configuration */
+       struct mutex ioctl_lock; /* serialize private ioctl */
+
+       const struct ispstat_ops *ops;
+
+       /* Buffer */
+       u8 wait_acc_frames;
+       u16 config_counter;
+       u32 frame_number;
+       u32 buf_size;
+       u32 buf_alloc_size;
+       struct dma_chan *dma_ch;
+       unsigned long event_type;
+       struct ispstat_buffer *buf;
+       struct ispstat_buffer *active_buf;
+       struct ispstat_buffer *locked_buf;
+};
+
+struct ispstat_generic_config {
+       /*
+        * Fields must be in the same order as in:
+        *  - omap3isp_h3a_aewb_config
+        *  - omap3isp_h3a_af_config
+        *  - omap3isp_hist_config
+        */
+       u32 buf_size;
+       u16 config_counter;
+};
+
+int omap3isp_stat_config(struct ispstat *stat, void *new_conf);
+int omap3isp_stat_request_statistics(struct ispstat *stat,
+                                    struct omap3isp_stat_data *data);
+int omap3isp_stat_init(struct ispstat *stat, const char *name,
+                      const struct v4l2_subdev_ops *sd_ops);
+void omap3isp_stat_cleanup(struct ispstat *stat);
+int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,
+                                 struct v4l2_fh *fh,
+                                 struct v4l2_event_subscription *sub);
+int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
+                                   struct v4l2_fh *fh,
+                                   struct v4l2_event_subscription *sub);
+int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);
+
+int omap3isp_stat_busy(struct ispstat *stat);
+int omap3isp_stat_pcr_busy(struct ispstat *stat);
+void omap3isp_stat_suspend(struct ispstat *stat);
+void omap3isp_stat_resume(struct ispstat *stat);
+int omap3isp_stat_enable(struct ispstat *stat, u8 enable);
+void omap3isp_stat_sbl_overflow(struct ispstat *stat);
+void omap3isp_stat_isr(struct ispstat *stat);
+void omap3isp_stat_isr_frame_sync(struct ispstat *stat);
+void omap3isp_stat_dma_isr(struct ispstat *stat);
+int omap3isp_stat_register_entities(struct ispstat *stat,
+                                   struct v4l2_device *vdev);
+void omap3isp_stat_unregister_entities(struct ispstat *stat);
+
+#endif /* OMAP3_ISP_STAT_H */