summaryrefslogtreecommitdiffstats
path: root/drivers/media/usb/stkwebcam/stk-webcam.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/usb/stkwebcam/stk-webcam.h')
-rw-r--r--drivers/media/usb/stkwebcam/stk-webcam.h134
1 files changed, 134 insertions, 0 deletions
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.h b/drivers/media/usb/stkwebcam/stk-webcam.h
new file mode 100644
index 0000000..9f67366
--- /dev/null
+++ b/drivers/media/usb/stkwebcam/stk-webcam.h
@@ -0,0 +1,134 @@
+/*
+ * 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-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;
+ int brightness;
+ __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 video_device vdev;
+ struct usb_device *udev;
+ struct usb_interface *interface;
+ int webcam_model;
+ struct file *owner;
+
+ 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 */
+ 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
OpenPOWER on IntegriCloud