summaryrefslogtreecommitdiffstats
path: root/drivers/media/usb/stkwebcam/stk-webcam.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/media/usb/stkwebcam/stk-webcam.h
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/usb/stkwebcam/stk-webcam.h')
-rw-r--r--drivers/media/usb/stkwebcam/stk-webcam.h130
1 files changed, 130 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 000000000..5cecbdc97
--- /dev/null
+++ b/drivers/media/usb/stkwebcam/stk-webcam.h
@@ -0,0 +1,130 @@
+/*
+ * 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.
+ */
+
+#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)
+
+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, u8 *);
+
+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