Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / usb / stkwebcam / stk-webcam.h

diff --git a/kernel/drivers/media/usb/stkwebcam/stk-webcam.h b/kernel/drivers/media/usb/stkwebcam/stk-webcam.h
new file mode 100644 (file)
index 0000000..9bbfa3d
--- /dev/null
+++ b/kernel/drivers/media/usb/stkwebcam/stk-webcam.h
@@ -0,0 +1,140 @@
+/*
+ * stk-webcam.h : Driver for Syntek 1125 USB webcam controller
+ *
+ * Copyright (C) 2006 Nicolas VIVIEN
+ * Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef STKWEBCAM_H
+#define STKWEBCAM_H
+
+#include <linux/usb.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-common.h>
+
+#define DRIVER_VERSION         "v0.0.1"
+#define DRIVER_VERSION_NUM     0x000001
+
+#define MAX_ISO_BUFS           3
+#define ISO_FRAMES_PER_DESC    16
+#define ISO_MAX_FRAME_SIZE     3 * 1024
+#define ISO_BUFFER_SIZE                (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
+
+
+#define PREFIX                         "stkwebcam: "
+#define STK_INFO(str, args...)         printk(KERN_INFO PREFIX str, ##args)
+#define STK_ERROR(str, args...)                printk(KERN_ERR PREFIX str, ##args)
+#define STK_WARNING(str, args...)      printk(KERN_WARNING PREFIX str, ##args)
+
+struct stk_iso_buf {
+       void *data;
+       int length;
+       int read;
+       struct urb *urb;
+};
+
+/* Streaming IO buffers */
+struct stk_sio_buffer {
+       struct v4l2_buffer v4lbuf;
+       char *buffer;
+       int mapcount;
+       struct stk_camera *dev;
+       struct list_head list;
+};
+
+enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF};
+
+struct stk_video {
+       enum stk_mode mode;
+       __u32 palette;
+       int hflip;
+       int vflip;
+};
+
+enum stk_status {
+       S_PRESENT = 1,
+       S_INITIALISED = 2,
+       S_MEMALLOCD = 4,
+       S_STREAMING = 8,
+};
+#define is_present(dev)                ((dev)->status & S_PRESENT)
+#define is_initialised(dev)    ((dev)->status & S_INITIALISED)
+#define is_streaming(dev)      ((dev)->status & S_STREAMING)
+#define is_memallocd(dev)      ((dev)->status & S_MEMALLOCD)
+#define set_present(dev)       ((dev)->status = S_PRESENT)
+#define unset_present(dev)     ((dev)->status &= \
+                                       ~(S_PRESENT|S_INITIALISED|S_STREAMING))
+#define set_initialised(dev)   ((dev)->status |= S_INITIALISED)
+#define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED)
+#define set_memallocd(dev)     ((dev)->status |= S_MEMALLOCD)
+#define unset_memallocd(dev)   ((dev)->status &= ~S_MEMALLOCD)
+#define set_streaming(dev)     ((dev)->status |= S_STREAMING)
+#define unset_streaming(dev)   ((dev)->status &= ~S_STREAMING)
+
+struct regval {
+       unsigned reg;
+       unsigned val;
+};
+
+struct stk_camera {
+       struct v4l2_device v4l2_dev;
+       struct v4l2_ctrl_handler hdl;
+       struct video_device vdev;
+       struct usb_device *udev;
+       struct usb_interface *interface;
+       int webcam_model;
+       struct file *owner;
+       struct mutex lock;
+       int first_init;
+
+       u8 isoc_ep;
+
+       /* Not sure if this is right */
+       atomic_t urbs_used;
+
+       struct stk_video vsettings;
+
+       enum stk_status status;
+
+       spinlock_t spinlock;
+       wait_queue_head_t wait_frame;
+
+       struct stk_iso_buf *isobufs;
+
+       int frame_size;
+       /* Streaming buffers */
+       int reading;
+       unsigned int n_sbufs;
+       struct stk_sio_buffer *sio_bufs;
+       struct list_head sio_avail;
+       struct list_head sio_full;
+       unsigned sequence;
+};
+
+#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev)
+
+int stk_camera_write_reg(struct stk_camera *, u16, u8);
+int stk_camera_read_reg(struct stk_camera *, u16, int *);
+
+int stk_sensor_init(struct stk_camera *);
+int stk_sensor_configure(struct stk_camera *);
+int stk_sensor_sleep(struct stk_camera *dev);
+int stk_sensor_wakeup(struct stk_camera *dev);
+int stk_sensor_set_brightness(struct stk_camera *dev, int br);
+
+#endif