1 files changed, 206 insertions, 0 deletions

diff --git a/drivers/usb/media/sn9c102.h b/drivers/usb/media/sn9c102.h
new file mode 100644
index 000000000000..8b8a4c8743f8
--- /dev/null
+++ b/drivers/usb/media/sn9c102.h
@@ -0,0 +1,206 @@
+/***************************************************************************
+ * V4L2 driver for SN9C10x PC Camera Controllers                           *
+ *                                                                         *
+ * Copyright (C) 2004-2005 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/version.h>
+#include <linux/usb.h>
+#include <linux/videodev.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 <asm/semaphore.h>
+
+#include "sn9c102_sensor.h"
+
+/*****************************************************************************/
+
+#define SN9C102_DEBUG
+#define SN9C102_DEBUG_LEVEL       2
+#define SN9C102_MAX_DEVICES       64
+#define SN9C102_PRESERVE_IMGSCALE 0
+#define SN9C102_FORCE_MUNMAP      0
+#define SN9C102_MAX_FRAMES        32
+#define SN9C102_URBS              2
+#define SN9C102_ISO_PACKETS       7
+#define SN9C102_ALTERNATE_SETTING 8
+#define SN9C102_URB_TIMEOUT       msecs_to_jiffies(2 * SN9C102_ISO_PACKETS)
+#define SN9C102_CTRL_TIMEOUT      300
+
+/*****************************************************************************/
+
+#define SN9C102_MODULE_NAME     "V4L2 driver for SN9C10x PC Camera Controllers"
+#define SN9C102_MODULE_AUTHOR   "(C) 2004-2005 Luca Risolia"
+#define SN9C102_AUTHOR_EMAIL    "<luca.risolia@studio.unibo.it>"
+#define SN9C102_MODULE_LICENSE  "GPL"
+#define SN9C102_MODULE_VERSION  "1:1.24"
+#define SN9C102_MODULE_VERSION_CODE  KERNEL_VERSION(1, 0, 24)
+
+enum sn9c102_bridge {
+        BRIDGE_SN9C101 = 0x01,
+        BRIDGE_SN9C102 = 0x02,
+        BRIDGE_SN9C103 = 0x04,
+};
+
+SN9C102_ID_TABLE
+SN9C102_SENSOR_TABLE
+
+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[12];
+typedef char sn9c102_eof_header_t[4];
+
+struct sn9c102_sysfs_attr {
+        u8 reg, i2c_reg;
+        sn9c102_sof_header_t frame_header;
+};
+
+struct sn9c102_module_param {
+        u8 force_munmap;
+};
+
+static DECLARE_MUTEX(sn9c102_sysfs_lock);
+static DECLARE_RWSEM(sn9c102_disconnect);
+
+struct sn9c102_device {
+        struct device dev;
+
+        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;
+        sn9c102_sof_header_t sof_header;
+        u16 reg[32];
+
+        struct sn9c102_module_param module_param;
+
+        enum sn9c102_dev_state state;
+        u8 users;
+
+        struct semaphore dev_sem, fileop_sem;
+        spinlock_t queue_lock;
+        wait_queue_head_t open, wait_frame, wait_stream;
+};
+
+/*****************************************************************************/
+
+void
+sn9c102_attach_sensor(struct sn9c102_device* cam,
+                      struct sn9c102_sensor* sensor)
+{
+        cam->sensor = sensor;
+        cam->sensor->dev = &cam->dev;
+        cam->sensor->usbdev = cam->usbdev;
+}
+
+/*****************************************************************************/
+
+#undef DBG
+#undef KDBG
+#ifdef SN9C102_DEBUG
+#       define DBG(level, fmt, args...)                                       \
+{                                                                             \
+        if (debug >= (level)) {                                               \
+                if ((level) == 1)                                             \
+                        dev_err(&cam->dev, fmt "\n", ## args);                \
+                else if ((level) == 2)                                        \
+                        dev_info(&cam->dev, fmt "\n", ## args);               \
+                else if ((level) >= 3)                                        \
+                        dev_info(&cam->dev, "[%s:%d] " fmt "\n",              \
+                                 __FUNCTION__, __LINE__ , ## args);           \
+        }                                                                     \
+}
+#       define KDBG(level, fmt, args...)                                      \
+{                                                                             \
+        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", __FUNCTION__,  \
+                                 __LINE__ , ## args);                         \
+        }                                                                     \
+}
+#else
+#       define KDBG(level, fmt, args...) do {;} while(0);
+#       define DBG(level, fmt, args...) do {;} while(0);
+#endif
+
+#undef PDBG
+#define PDBG(fmt, args...)                                                    \
+dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args);
+
+#undef PDBGG
+#define PDBGG(fmt, args...) do {;} while(0); /* placeholder */
+
+#endif /* _SN9C102_H_ */