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Diffstat (limited to 'drivers/media/usb/sn9c102/sn9c102.h')
-rw-r--r--drivers/media/usb/sn9c102/sn9c102.h211
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/media/usb/sn9c102/sn9c102.h b/drivers/media/usb/sn9c102/sn9c102.h
new file mode 100644
index 000000000000..2bc153e869be
--- /dev/null
+++ b/drivers/media/usb/sn9c102/sn9c102.h
@@ -0,0 +1,211 @@
+/***************************************************************************
+ * V4L2 driver for SN9C1xx PC Camera Controllers *
+ * *
+ * Copyright (C) 2004-2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
+ * *
+ * 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 *
+ * (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA. *
+ ***************************************************************************/
+
+#ifndef _SN9C102_H_
+#define _SN9C102_H_
+
+#include <linux/usb.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/types.h>
+#include <linux/param.h>
+#include <linux/rwsem.h>
+#include <linux/mutex.h>
+#include <linux/string.h>
+#include <linux/stddef.h>
+#include <linux/kref.h>
+
+#include "sn9c102_config.h"
+#include "sn9c102_sensor.h"
+#include "sn9c102_devtable.h"
+
+
+enum sn9c102_frame_state {
+ F_UNUSED,
+ F_QUEUED,
+ F_GRABBING,
+ F_DONE,
+ F_ERROR,
+};
+
+struct sn9c102_frame_t {
+ void* bufmem;
+ struct v4l2_buffer buf;
+ enum sn9c102_frame_state state;
+ struct list_head frame;
+ unsigned long vma_use_count;
+};
+
+enum sn9c102_dev_state {
+ DEV_INITIALIZED = 0x01,
+ DEV_DISCONNECTED = 0x02,
+ DEV_MISCONFIGURED = 0x04,
+};
+
+enum sn9c102_io_method {
+ IO_NONE,
+ IO_READ,
+ IO_MMAP,
+};
+
+enum sn9c102_stream_state {
+ STREAM_OFF,
+ STREAM_INTERRUPT,
+ STREAM_ON,
+};
+
+typedef char sn9c102_sof_header_t[62];
+
+struct sn9c102_sof_t {
+ sn9c102_sof_header_t header;
+ u16 bytesread;
+};
+
+struct sn9c102_sysfs_attr {
+ u16 reg, i2c_reg;
+ sn9c102_sof_header_t frame_header;
+};
+
+struct sn9c102_module_param {
+ u8 force_munmap;
+ u16 frame_timeout;
+};
+
+static DEFINE_MUTEX(sn9c102_sysfs_lock);
+static DECLARE_RWSEM(sn9c102_dev_lock);
+
+struct sn9c102_device {
+ struct video_device* v4ldev;
+
+ enum sn9c102_bridge bridge;
+ struct sn9c102_sensor sensor;
+
+ struct usb_device* usbdev;
+ struct urb* urb[SN9C102_URBS];
+ void* transfer_buffer[SN9C102_URBS];
+ u8* control_buffer;
+
+ struct sn9c102_frame_t *frame_current, frame[SN9C102_MAX_FRAMES];
+ struct list_head inqueue, outqueue;
+ u32 frame_count, nbuffers, nreadbuffers;
+
+ enum sn9c102_io_method io;
+ enum sn9c102_stream_state stream;
+
+ struct v4l2_jpegcompression compression;
+
+ struct sn9c102_sysfs_attr sysfs;
+ struct sn9c102_sof_t sof;
+ u16 reg[384];
+
+ struct sn9c102_module_param module_param;
+
+ struct kref kref;
+ enum sn9c102_dev_state state;
+ u8 users;
+
+ struct completion probe;
+ struct mutex open_mutex, fileop_mutex;
+ spinlock_t queue_lock;
+ wait_queue_head_t wait_open, wait_frame, wait_stream;
+};
+
+/*****************************************************************************/
+
+struct sn9c102_device*
+sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id)
+{
+ return usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id) ? cam : NULL;
+}
+
+
+void
+sn9c102_attach_sensor(struct sn9c102_device* cam,
+ const struct sn9c102_sensor* sensor)
+{
+ memcpy(&cam->sensor, sensor, sizeof(struct sn9c102_sensor));
+}
+
+
+enum sn9c102_bridge
+sn9c102_get_bridge(struct sn9c102_device* cam)
+{
+ return cam->bridge;
+}
+
+
+struct sn9c102_sensor* sn9c102_get_sensor(struct sn9c102_device* cam)
+{
+ return &cam->sensor;
+}
+
+/*****************************************************************************/
+
+#undef DBG
+#undef KDBG
+#ifdef SN9C102_DEBUG
+# define DBG(level, fmt, args...) \
+do { \
+ if (debug >= (level)) { \
+ if ((level) == 1) \
+ dev_err(&cam->usbdev->dev, fmt "\n", ## args); \
+ else if ((level) == 2) \
+ dev_info(&cam->usbdev->dev, fmt "\n", ## args); \
+ else if ((level) >= 3) \
+ dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \
+ __func__, __LINE__ , ## args); \
+ } \
+} while (0)
+# define V4LDBG(level, name, cmd) \
+do { \
+ if (debug >= (level)) \
+ v4l_printk_ioctl(name, cmd); \
+} while (0)
+# define KDBG(level, fmt, args...) \
+do { \
+ if (debug >= (level)) { \
+ if ((level) == 1 || (level) == 2) \
+ pr_info("sn9c102: " fmt "\n", ## args); \
+ else if ((level) == 3) \
+ pr_debug("sn9c102: [%s:%d] " fmt "\n", \
+ __func__, __LINE__ , ## args); \
+ } \
+} while (0)
+#else
+# define DBG(level, fmt, args...) do {;} while(0)
+# define V4LDBG(level, name, cmd) do {;} while(0)
+# define KDBG(level, fmt, args...) do {;} while(0)
+#endif
+
+#undef PDBG
+#define PDBG(fmt, args...) \
+dev_info(&cam->usbdev->dev, "[%s:%s:%d] " fmt "\n", __FILE__, __func__, \
+ __LINE__ , ## args)
+
+#undef PDBGG
+#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */
+
+#endif /* _SN9C102_H_ */