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-rw-r--r--drivers/media/video/sn9c102/Makefile7
-rw-r--r--drivers/media/video/sn9c102/sn9c102.h218
-rw-r--r--drivers/media/video/sn9c102/sn9c102_core.c2919
-rw-r--r--drivers/media/video/sn9c102/sn9c102_hv7131d.c271
-rw-r--r--drivers/media/video/sn9c102/sn9c102_mi0343.c363
-rw-r--r--drivers/media/video/sn9c102/sn9c102_ov7630.c401
-rw-r--r--drivers/media/video/sn9c102/sn9c102_pas106b.c307
-rw-r--r--drivers/media/video/sn9c102/sn9c102_pas202bca.c238
-rw-r--r--drivers/media/video/sn9c102/sn9c102_pas202bcb.c293
-rw-r--r--drivers/media/video/sn9c102/sn9c102_sensor.h389
-rw-r--r--drivers/media/video/sn9c102/sn9c102_tas5110c1b.c159
-rw-r--r--drivers/media/video/sn9c102/sn9c102_tas5130d1b.c169
12 files changed, 5734 insertions, 0 deletions
diff --git a/drivers/media/video/sn9c102/Makefile b/drivers/media/video/sn9c102/Makefile
new file mode 100644
index 00000000000..536ad3098da
--- /dev/null
+++ b/drivers/media/video/sn9c102/Makefile
@@ -0,0 +1,7 @@
+sn9c102-objs := sn9c102_core.o sn9c102_hv7131d.o sn9c102_mi0343.o \
+ sn9c102_ov7630.o sn9c102_pas106b.o sn9c102_pas202bca.o \
+ sn9c102_pas202bcb.o sn9c102_tas5110c1b.o \
+ sn9c102_tas5130d1b.o
+
+obj-$(CONFIG_USB_SN9C102) += sn9c102.o
+
diff --git a/drivers/media/video/sn9c102/sn9c102.h b/drivers/media/video/sn9c102/sn9c102.h
new file mode 100644
index 00000000000..2c6ff396daf
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102.h
@@ -0,0 +1,218 @@
+/***************************************************************************
+ * V4L2 driver for SN9C10x 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/version.h>
+#include <linux/usb.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.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 "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_FRAME_TIMEOUT 2
+
+/*****************************************************************************/
+
+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 sn9c103_sof_header_t[18];
+typedef char sn9c102_sof_header_t[12];
+typedef char sn9c102_eof_header_t[4];
+
+struct sn9c102_sysfs_attr {
+ u8 reg, i2c_reg;
+ sn9c103_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_disconnect);
+
+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;
+ sn9c103_sof_header_t sof_header;
+ u16 reg[63];
+
+ struct sn9c102_module_param module_param;
+
+ enum sn9c102_dev_state state;
+ u8 users;
+
+ struct mutex dev_mutex, fileop_mutex;
+ spinlock_t queue_lock;
+ wait_queue_head_t open, wait_frame, wait_stream;
+};
+
+/*****************************************************************************/
+
+struct sn9c102_device*
+sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id)
+{
+ if (usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id))
+ return cam;
+
+ return NULL;
+}
+
+
+void
+sn9c102_attach_sensor(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor)
+{
+ memcpy(&cam->sensor, sensor, sizeof(struct sn9c102_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", \
+ __FUNCTION__, __LINE__ , ## args); \
+ } \
+} while (0)
+# define V4LDBG(level, name, cmd) \
+do { \
+ if (debug >= (level)) \
+ v4l_print_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", __FUNCTION__, \
+ __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:%d] " fmt "\n", \
+ __FUNCTION__, __LINE__ , ## args)
+
+#undef PDBGG
+#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */
+
+#endif /* _SN9C102_H_ */
diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c
new file mode 100644
index 00000000000..ea4394dc941
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_core.c
@@ -0,0 +1,2919 @@
+/***************************************************************************
+ * V4L2 driver for SN9C10x 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. *
+ ***************************************************************************/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/moduleparam.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/delay.h>
+#include <linux/compiler.h>
+#include <linux/ioctl.h>
+#include <linux/poll.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/page-flags.h>
+#include <linux/byteorder/generic.h>
+#include <asm/page.h>
+#include <asm/uaccess.h>
+
+#include "sn9c102.h"
+
+/*****************************************************************************/
+
+#define SN9C102_MODULE_NAME "V4L2 driver for SN9C10x PC Camera Controllers"
+#define SN9C102_MODULE_AUTHOR "(C) 2004-2006 Luca Risolia"
+#define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>"
+#define SN9C102_MODULE_LICENSE "GPL"
+#define SN9C102_MODULE_VERSION "1:1.27"
+#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 27)
+
+/*****************************************************************************/
+
+MODULE_DEVICE_TABLE(usb, sn9c102_id_table);
+
+MODULE_AUTHOR(SN9C102_MODULE_AUTHOR " " SN9C102_AUTHOR_EMAIL);
+MODULE_DESCRIPTION(SN9C102_MODULE_NAME);
+MODULE_VERSION(SN9C102_MODULE_VERSION);
+MODULE_LICENSE(SN9C102_MODULE_LICENSE);
+
+static short video_nr[] = {[0 ... SN9C102_MAX_DEVICES-1] = -1};
+module_param_array(video_nr, short, NULL, 0444);
+MODULE_PARM_DESC(video_nr,
+ "\n<-1|n[,...]> Specify V4L2 minor mode number."
+ "\n -1 = use next available (default)"
+ "\n n = use minor number n (integer >= 0)"
+ "\nYou can specify up to "__MODULE_STRING(SN9C102_MAX_DEVICES)
+ " cameras this way."
+ "\nFor example:"
+ "\nvideo_nr=-1,2,-1 would assign minor number 2 to"
+ "\nthe second camera and use auto for the first"
+ "\none and for every other camera."
+ "\n");
+
+static short force_munmap[] = {[0 ... SN9C102_MAX_DEVICES-1] =
+ SN9C102_FORCE_MUNMAP};
+module_param_array(force_munmap, bool, NULL, 0444);
+MODULE_PARM_DESC(force_munmap,
+ "\n<0|1[,...]> Force the application to unmap previously"
+ "\nmapped buffer memory before calling any VIDIOC_S_CROP or"
+ "\nVIDIOC_S_FMT ioctl's. Not all the applications support"
+ "\nthis feature. This parameter is specific for each"
+ "\ndetected camera."
+ "\n 0 = do not force memory unmapping"
+ "\n 1 = force memory unmapping (save memory)"
+ "\nDefault value is "__MODULE_STRING(SN9C102_FORCE_MUNMAP)"."
+ "\n");
+
+static unsigned int frame_timeout[] = {[0 ... SN9C102_MAX_DEVICES-1] =
+ SN9C102_FRAME_TIMEOUT};
+module_param_array(frame_timeout, uint, NULL, 0644);
+MODULE_PARM_DESC(frame_timeout,
+ "\n<n[,...]> Timeout for a video frame in seconds."
+ "\nThis parameter is specific for each detected camera."
+ "\nDefault value is "__MODULE_STRING(SN9C102_FRAME_TIMEOUT)"."
+ "\n");
+
+#ifdef SN9C102_DEBUG
+static unsigned short debug = SN9C102_DEBUG_LEVEL;
+module_param(debug, ushort, 0644);
+MODULE_PARM_DESC(debug,
+ "\n<n> Debugging information level, from 0 to 3:"
+ "\n0 = none (use carefully)"
+ "\n1 = critical errors"
+ "\n2 = significant informations"
+ "\n3 = more verbose messages"
+ "\nLevel 3 is useful for testing only, when only "
+ "one device is used."
+ "\nDefault value is "__MODULE_STRING(SN9C102_DEBUG_LEVEL)"."
+ "\n");
+#endif
+
+/*****************************************************************************/
+
+static sn9c102_sof_header_t sn9c102_sof_header[] = {
+ {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x00},
+ {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x01},
+};
+
+static sn9c103_sof_header_t sn9c103_sof_header[] = {
+ {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x20},
+};
+
+static sn9c102_eof_header_t sn9c102_eof_header[] = {
+ {0x00, 0x00, 0x00, 0x00},
+ {0x40, 0x00, 0x00, 0x00},
+ {0x80, 0x00, 0x00, 0x00},
+ {0xc0, 0x00, 0x00, 0x00},
+};
+
+/*****************************************************************************/
+
+static u32
+sn9c102_request_buffers(struct sn9c102_device* cam, u32 count,
+ enum sn9c102_io_method io)
+{
+ struct v4l2_pix_format* p = &(cam->sensor.pix_format);
+ struct v4l2_rect* r = &(cam->sensor.cropcap.bounds);
+ const size_t imagesize = cam->module_param.force_munmap ||
+ io == IO_READ ?
+ (p->width * p->height * p->priv) / 8 :
+ (r->width * r->height * p->priv) / 8;
+ void* buff = NULL;
+ u32 i;
+
+ if (count > SN9C102_MAX_FRAMES)
+ count = SN9C102_MAX_FRAMES;
+
+ cam->nbuffers = count;
+ while (cam->nbuffers > 0) {
+ if ((buff = vmalloc_32(cam->nbuffers * PAGE_ALIGN(imagesize))))
+ break;
+ cam->nbuffers--;
+ }
+
+ for (i = 0; i < cam->nbuffers; i++) {
+ cam->frame[i].bufmem = buff + i*PAGE_ALIGN(imagesize);
+ cam->frame[i].buf.index = i;
+ cam->frame[i].buf.m.offset = i*PAGE_ALIGN(imagesize);
+ cam->frame[i].buf.length = imagesize;
+ cam->frame[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ cam->frame[i].buf.sequence = 0;
+ cam->frame[i].buf.field = V4L2_FIELD_NONE;
+ cam->frame[i].buf.memory = V4L2_MEMORY_MMAP;
+ cam->frame[i].buf.flags = 0;
+ }
+
+ return cam->nbuffers;
+}
+
+
+static void sn9c102_release_buffers(struct sn9c102_device* cam)
+{
+ if (cam->nbuffers) {
+ vfree(cam->frame[0].bufmem);
+ cam->nbuffers = 0;
+ }
+ cam->frame_current = NULL;
+}
+
+
+static void sn9c102_empty_framequeues(struct sn9c102_device* cam)
+{
+ u32 i;
+
+ INIT_LIST_HEAD(&cam->inqueue);
+ INIT_LIST_HEAD(&cam->outqueue);
+
+ for (i = 0; i < SN9C102_MAX_FRAMES; i++) {
+ cam->frame[i].state = F_UNUSED;
+ cam->frame[i].buf.bytesused = 0;
+ }
+}
+
+
+static void sn9c102_requeue_outqueue(struct sn9c102_device* cam)
+{
+ struct sn9c102_frame_t *i;
+
+ list_for_each_entry(i, &cam->outqueue, frame) {
+ i->state = F_QUEUED;
+ list_add(&i->frame, &cam->inqueue);
+ }
+
+ INIT_LIST_HEAD(&cam->outqueue);
+}
+
+
+static void sn9c102_queue_unusedframes(struct sn9c102_device* cam)
+{
+ unsigned long lock_flags;
+ u32 i;
+
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].state == F_UNUSED) {
+ cam->frame[i].state = F_QUEUED;
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ list_add_tail(&cam->frame[i].frame, &cam->inqueue);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+ }
+}
+
+/*****************************************************************************/
+
+int sn9c102_write_regs(struct sn9c102_device* cam, u8* buff, u16 index)
+{
+ struct usb_device* udev = cam->usbdev;
+ int i, res;
+
+ if (index + sizeof(buff) >= ARRAY_SIZE(cam->reg))
+ return -1;
+
+ res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
+ index, 0, buff, sizeof(buff),
+ SN9C102_CTRL_TIMEOUT*sizeof(buff));
+ if (res < 0) {
+ DBG(3, "Failed to write registers (index 0x%02X, error %d)",
+ index, res);
+ return -1;
+ }
+
+ for (i = 0; i < sizeof(buff); i++)
+ cam->reg[index+i] = buff[i];
+
+ return 0;
+}
+
+
+int sn9c102_write_reg(struct sn9c102_device* cam, u8 value, u16 index)
+{
+ struct usb_device* udev = cam->usbdev;
+ u8* buff = cam->control_buffer;
+ int res;
+
+ if (index >= ARRAY_SIZE(cam->reg))
+ return -1;
+
+ *buff = value;
+
+ res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
+ index, 0, buff, 1, SN9C102_CTRL_TIMEOUT);
+ if (res < 0) {
+ DBG(3, "Failed to write a register (value 0x%02X, index "
+ "0x%02X, error %d)", value, index, res);
+ return -1;
+ }
+
+ cam->reg[index] = value;
+
+ return 0;
+}
+
+
+/* NOTE: reading some registers always returns 0 */
+static int sn9c102_read_reg(struct sn9c102_device* cam, u16 index)
+{
+ struct usb_device* udev = cam->usbdev;
+ u8* buff = cam->control_buffer;
+ int res;
+
+ res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, 0xc1,
+ index, 0, buff, 1, SN9C102_CTRL_TIMEOUT);
+ if (res < 0)
+ DBG(3, "Failed to read a register (index 0x%02X, error %d)",
+ index, res);
+
+ return (res >= 0) ? (int)(*buff) : -1;
+}
+
+
+int sn9c102_pread_reg(struct sn9c102_device* cam, u16 index)
+{
+ if (index >= ARRAY_SIZE(cam->reg))
+ return -1;
+
+ return cam->reg[index];
+}
+
+
+static int
+sn9c102_i2c_wait(struct sn9c102_device* cam, struct sn9c102_sensor* sensor)
+{
+ int i, r;
+
+ for (i = 1; i <= 5; i++) {
+ r = sn9c102_read_reg(cam, 0x08);
+ if (r < 0)
+ return -EIO;
+ if (r & 0x04)
+ return 0;
+ if (sensor->frequency & SN9C102_I2C_400KHZ)
+ udelay(5*16);
+ else
+ udelay(16*16);
+ }
+ return -EBUSY;
+}
+
+
+static int
+sn9c102_i2c_detect_read_error(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor)
+{
+ int r;
+ r = sn9c102_read_reg(cam, 0x08);
+ return (r < 0 || (r >= 0 && !(r & 0x08))) ? -EIO : 0;
+}
+
+
+static int
+sn9c102_i2c_detect_write_error(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor)
+{
+ int r;
+ r = sn9c102_read_reg(cam, 0x08);
+ return (r < 0 || (r >= 0 && (r & 0x08))) ? -EIO : 0;
+}
+
+
+int
+sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor, u8 data0, u8 data1,
+ u8 n, u8 buffer[])
+{
+ struct usb_device* udev = cam->usbdev;
+ u8* data = cam->control_buffer;
+ int err = 0, res;
+
+ /* Write cycle */
+ data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
+ ((sensor->frequency & SN9C102_I2C_400KHZ) ? 0x01 : 0) | 0x10;
+ data[1] = data0; /* I2C slave id */
+ data[2] = data1; /* address */
+ data[7] = 0x10;
+ res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
+ 0x08, 0, data, 8, SN9C102_CTRL_TIMEOUT);
+ if (res < 0)
+ err += res;
+
+ err += sn9c102_i2c_wait(cam, sensor);
+
+ /* Read cycle - n bytes */
+ data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
+ ((sensor->frequency & SN9C102_I2C_400KHZ) ? 0x01 : 0) |
+ (n << 4) | 0x02;
+ data[1] = data0;
+ data[7] = 0x10;
+ res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
+ 0x08, 0, data, 8, SN9C102_CTRL_TIMEOUT);
+ if (res < 0)
+ err += res;
+
+ err += sn9c102_i2c_wait(cam, sensor);
+
+ /* The first read byte will be placed in data[4] */
+ res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, 0xc1,
+ 0x0a, 0, data, 5, SN9C102_CTRL_TIMEOUT);
+ if (res < 0)
+ err += res;
+
+ err += sn9c102_i2c_detect_read_error(cam, sensor);
+
+ PDBGG("I2C read: address 0x%02X, first read byte: 0x%02X", data1,
+ data[4]);
+
+ if (err) {
+ DBG(3, "I2C read failed for %s image sensor", sensor->name);
+ return -1;
+ }
+
+ if (buffer)
+ memcpy(buffer, data, sizeof(buffer));
+
+ return (int)data[4];
+}
+
+
+int
+sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor, u8 n, u8 data0,
+ u8 data1, u8 data2, u8 data3, u8 data4, u8 data5)
+{
+ struct usb_device* udev = cam->usbdev;
+ u8* data = cam->control_buffer;
+ int err = 0, res;
+
+ /* Write cycle. It usually is address + value */
+ data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
+ ((sensor->frequency & SN9C102_I2C_400KHZ) ? 0x01 : 0)
+ | ((n - 1) << 4);
+ data[1] = data0;
+ data[2] = data1;
+ data[3] = data2;
+ data[4] = data3;
+ data[5] = data4;
+ data[6] = data5;
+ data[7] = 0x14;
+ res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
+ 0x08, 0, data, 8, SN9C102_CTRL_TIMEOUT);
+ if (res < 0)
+ err += res;
+
+ err += sn9c102_i2c_wait(cam, sensor);
+ err += sn9c102_i2c_detect_write_error(cam, sensor);
+
+ if (err)
+ DBG(3, "I2C write failed for %s image sensor", sensor->name);
+
+ PDBGG("I2C raw write: %u bytes, data0 = 0x%02X, data1 = 0x%02X, "
+ "data2 = 0x%02X, data3 = 0x%02X, data4 = 0x%02X, data5 = 0x%02X",
+ n, data0, data1, data2, data3, data4, data5);
+
+ return err ? -1 : 0;
+}
+
+
+int
+sn9c102_i2c_try_read(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor, u8 address)
+{
+ return sn9c102_i2c_try_raw_read(cam, sensor, sensor->i2c_slave_id,
+ address, 1, NULL);
+}
+
+
+int
+sn9c102_i2c_try_write(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor, u8 address, u8 value)
+{
+ return sn9c102_i2c_try_raw_write(cam, sensor, 3,
+ sensor->i2c_slave_id, address,
+ value, 0, 0, 0);
+}
+
+
+int sn9c102_i2c_read(struct sn9c102_device* cam, u8 address)
+{
+ return sn9c102_i2c_try_read(cam, &cam->sensor, address);
+}
+
+
+int sn9c102_i2c_write(struct sn9c102_device* cam, u8 address, u8 value)
+{
+ return sn9c102_i2c_try_write(cam, &cam->sensor, address, value);
+}
+
+/*****************************************************************************/
+
+static void*
+sn9c102_find_sof_header(struct sn9c102_device* cam, void* mem, size_t len)
+{
+ size_t soflen = 0, i;
+ u8 j, n = 0;
+
+ switch (cam->bridge) {
+ case BRIDGE_SN9C101:
+ case BRIDGE_SN9C102:
+ soflen = sizeof(sn9c102_sof_header_t);
+ n = sizeof(sn9c102_sof_header) / soflen;
+ break;
+ case BRIDGE_SN9C103:
+ soflen = sizeof(sn9c103_sof_header_t);
+ n = sizeof(sn9c103_sof_header) / soflen;
+ }
+
+ for (i = 0; (len >= soflen) && (i <= len - soflen); i++)
+ for (j = 0; j < n; j++)
+ /* The invariable part of the header is 6 bytes long */
+ if ((cam->bridge != BRIDGE_SN9C103 &&
+ !memcmp(mem + i, sn9c102_sof_header[j], 6)) ||
+ (cam->bridge == BRIDGE_SN9C103 &&
+ !memcmp(mem + i, sn9c103_sof_header[j], 6))) {
+ memcpy(cam->sof_header, mem + i, soflen);
+ /* Skip the header */
+ return mem + i + soflen;
+ }
+
+ return NULL;
+}
+
+
+static void*
+sn9c102_find_eof_header(struct sn9c102_device* cam, void* mem, size_t len)
+{
+ size_t eoflen = sizeof(sn9c102_eof_header_t), i;
+ unsigned j, n = sizeof(sn9c102_eof_header) / eoflen;
+
+ if (cam->sensor.pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X)
+ return NULL; /* EOF header does not exist in compressed data */
+
+ for (i = 0; (len >= eoflen) && (i <= len - eoflen); i++)
+ for (j = 0; j < n; j++)
+ if (!memcmp(mem + i, sn9c102_eof_header[j], eoflen))
+ return mem + i;
+
+ return NULL;
+}
+
+
+static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs)
+{
+ struct sn9c102_device* cam = urb->context;
+ struct sn9c102_frame_t** f;
+ size_t imagesize, soflen;
+ u8 i;
+ int err = 0;
+
+ if (urb->status == -ENOENT)
+ return;
+
+ f = &cam->frame_current;
+
+ if (cam->stream == STREAM_INTERRUPT) {
+ cam->stream = STREAM_OFF;
+ if ((*f))
+ (*f)->state = F_QUEUED;
+ DBG(3, "Stream interrupted");
+ wake_up(&cam->wait_stream);
+ }
+
+ if (cam->state & DEV_DISCONNECTED)
+ return;
+
+ if (cam->state & DEV_MISCONFIGURED) {
+ wake_up_interruptible(&cam->wait_frame);
+ return;
+ }
+
+ if (cam->stream == STREAM_OFF || list_empty(&cam->inqueue))
+ goto resubmit_urb;
+
+ if (!(*f))
+ (*f) = list_entry(cam->inqueue.next, struct sn9c102_frame_t,
+ frame);
+
+ imagesize = (cam->sensor.pix_format.width *
+ cam->sensor.pix_format.height *
+ cam->sensor.pix_format.priv) / 8;
+
+ soflen = (cam->bridge) == BRIDGE_SN9C103 ?
+ sizeof(sn9c103_sof_header_t) :
+ sizeof(sn9c102_sof_header_t);
+
+ for (i = 0; i < urb->number_of_packets; i++) {
+ unsigned int img, len, status;
+ void *pos, *sof, *eof;
+
+ len = urb->iso_frame_desc[i].actual_length;
+ status = urb->iso_frame_desc[i].status;
+ pos = urb->iso_frame_desc[i].offset + urb->transfer_buffer;
+
+ if (status) {
+ DBG(3, "Error in isochronous frame");
+ (*f)->state = F_ERROR;
+ continue;
+ }
+
+ PDBGG("Isochrnous frame: length %u, #%u i", len, i);
+
+redo:
+ sof = sn9c102_find_sof_header(cam, pos, len);
+ if (likely(!sof)) {
+ eof = sn9c102_find_eof_header(cam, pos, len);
+ if ((*f)->state == F_GRABBING) {
+end_of_frame:
+ img = len;
+
+ if (eof)
+ img = (eof > pos) ? eof - pos - 1 : 0;
+
+ if ((*f)->buf.bytesused+img > imagesize) {
+ u32 b;
+ b = (*f)->buf.bytesused + img -
+ imagesize;
+ img = imagesize - (*f)->buf.bytesused;
+ DBG(3, "Expected EOF not found: "
+ "video frame cut");
+ if (eof)
+ DBG(3, "Exceeded limit: +%u "
+ "bytes", (unsigned)(b));
+ }
+
+ memcpy((*f)->bufmem + (*f)->buf.bytesused, pos,
+ img);
+
+ if ((*f)->buf.bytesused == 0)
+ do_gettimeofday(&(*f)->buf.timestamp);
+
+ (*f)->buf.bytesused += img;
+
+ if ((*f)->buf.bytesused == imagesize ||
+ (cam->sensor.pix_format.pixelformat ==
+ V4L2_PIX_FMT_SN9C10X && eof)) {
+ u32 b;
+ b = (*f)->buf.bytesused;
+ (*f)->state = F_DONE;
+ (*f)->buf.sequence= ++cam->frame_count;
+ spin_lock(&cam->queue_lock);
+ list_move_tail(&(*f)->frame,
+ &cam->outqueue);
+ if (!list_empty(&cam->inqueue))
+ (*f) = list_entry(
+ cam->inqueue.next,
+ struct sn9c102_frame_t,
+ frame );
+ else
+ (*f) = NULL;
+ spin_unlock(&cam->queue_lock);
+ memcpy(cam->sysfs.frame_header,
+ cam->sof_header, soflen);
+ DBG(3, "Video frame captured: %lu "
+ "bytes", (unsigned long)(b));
+
+ if (!(*f))
+ goto resubmit_urb;
+
+ } else if (eof) {
+ (*f)->state = F_ERROR;
+ DBG(3, "Not expected EOF after %lu "
+ "bytes of image data",
+ (unsigned long)
+ ((*f)->buf.bytesused));
+ }
+
+ if (sof) /* (1) */
+ goto start_of_frame;
+
+ } else if (eof) {
+ DBG(3, "EOF without SOF");
+ continue;
+
+ } else {
+ PDBGG("Ignoring pointless isochronous frame");
+ continue;
+ }
+
+ } else if ((*f)->state == F_QUEUED || (*f)->state == F_ERROR) {
+start_of_frame:
+ (*f)->state = F_GRABBING;
+ (*f)->buf.bytesused = 0;
+ len -= (sof - pos);
+ pos = sof;
+ DBG(3, "SOF detected: new video frame");
+ if (len)
+ goto redo;
+
+ } else if ((*f)->state == F_GRABBING) {
+ eof = sn9c102_find_eof_header(cam, pos, len);
+ if (eof && eof < sof)
+ goto end_of_frame; /* (1) */
+ else {
+ if (cam->sensor.pix_format.pixelformat ==
+ V4L2_PIX_FMT_SN9C10X) {
+ eof = sof - soflen;
+ goto end_of_frame;
+ } else {
+ DBG(3, "SOF before expected EOF after "
+ "%lu bytes of image data",
+ (unsigned long)
+ ((*f)->buf.bytesused));
+ goto start_of_frame;
+ }
+ }
+ }
+ }
+
+resubmit_urb:
+ urb->dev = cam->usbdev;
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0 && err != -EPERM) {
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "usb_submit_urb() failed");
+ }
+
+ wake_up_interruptible(&cam->wait_frame);
+}
+
+
+static int sn9c102_start_transfer(struct sn9c102_device* cam)
+{
+ struct usb_device *udev = cam->usbdev;
+ struct urb* urb;
+ const unsigned int sn9c102_wMaxPacketSize[] = {0, 128, 256, 384, 512,
+ 680, 800, 900, 1023};
+ const unsigned int sn9c103_wMaxPacketSize[] = {0, 128, 256, 384, 512,
+ 680, 800, 900, 1003};
+ const unsigned int psz = (cam->bridge == BRIDGE_SN9C103) ?
+ sn9c103_wMaxPacketSize[SN9C102_ALTERNATE_SETTING] :
+ sn9c102_wMaxPacketSize[SN9C102_ALTERNATE_SETTING];
+ s8 i, j;
+ int err = 0;
+
+ for (i = 0; i < SN9C102_URBS; i++) {
+ cam->transfer_buffer[i] = kzalloc(SN9C102_ISO_PACKETS * psz,
+ GFP_KERNEL);
+ if (!cam->transfer_buffer[i]) {
+ err = -ENOMEM;
+ DBG(1, "Not enough memory");
+ goto free_buffers;
+ }
+ }
+
+ for (i = 0; i < SN9C102_URBS; i++) {
+ urb = usb_alloc_urb(SN9C102_ISO_PACKETS, GFP_KERNEL);
+ cam->urb[i] = urb;
+ if (!urb) {
+ err = -ENOMEM;
+ DBG(1, "usb_alloc_urb() failed");
+ goto free_urbs;
+ }
+ urb->dev = udev;
+ urb->context = cam;
+ urb->pipe = usb_rcvisocpipe(udev, 1);
+ urb->transfer_flags = URB_ISO_ASAP;
+ urb->number_of_packets = SN9C102_ISO_PACKETS;
+ urb->complete = sn9c102_urb_complete;
+ urb->transfer_buffer = cam->transfer_buffer[i];
+ urb->transfer_buffer_length = psz * SN9C102_ISO_PACKETS;
+ urb->interval = 1;
+ for (j = 0; j < SN9C102_ISO_PACKETS; j++) {
+ urb->iso_frame_desc[j].offset = psz * j;
+ urb->iso_frame_desc[j].length = psz;
+ }
+ }
+
+ /* Enable video */
+ if (!(cam->reg[0x01] & 0x04)) {
+ err = sn9c102_write_reg(cam, cam->reg[0x01] | 0x04, 0x01);
+ if (err) {
+ err = -EIO;
+ DBG(1, "I/O hardware error");
+ goto free_urbs;
+ }
+ }
+
+ err = usb_set_interface(udev, 0, SN9C102_ALTERNATE_SETTING);
+ if (err) {
+ DBG(1, "usb_set_interface() failed");
+ goto free_urbs;
+ }
+
+ cam->frame_current = NULL;
+
+ for (i = 0; i < SN9C102_URBS; i++) {
+ err = usb_submit_urb(cam->urb[i], GFP_KERNEL);
+ if (err) {
+ for (j = i-1; j >= 0; j--)
+ usb_kill_urb(cam->urb[j]);
+ DBG(1, "usb_submit_urb() failed, error %d", err);
+ goto free_urbs;
+ }
+ }
+
+ return 0;
+
+free_urbs:
+ for (i = 0; (i < SN9C102_URBS) && cam->urb[i]; i++)
+ usb_free_urb(cam->urb[i]);
+
+free_buffers:
+ for (i = 0; (i < SN9C102_URBS) && cam->transfer_buffer[i]; i++)
+ kfree(cam->transfer_buffer[i]);
+
+ return err;
+}
+
+
+static int sn9c102_stop_transfer(struct sn9c102_device* cam)
+{
+ struct usb_device *udev = cam->usbdev;
+ s8 i;
+ int err = 0;
+
+ if (cam->state & DEV_DISCONNECTED)
+ return 0;
+
+ for (i = SN9C102_URBS-1; i >= 0; i--) {
+ usb_kill_urb(cam->urb[i]);
+ usb_free_urb(cam->urb[i]);
+ kfree(cam->transfer_buffer[i]);
+ }
+
+ err = usb_set_interface(udev, 0, 0); /* 0 Mb/s */
+ if (err)
+ DBG(3, "usb_set_interface() failed");
+
+ return err;
+}
+
+
+static int sn9c102_stream_interrupt(struct sn9c102_device* cam)
+{
+ long timeout;
+
+ cam->stream = STREAM_INTERRUPT;
+ timeout = wait_event_timeout(cam->wait_stream,
+ (cam->stream == STREAM_OFF) ||
+ (cam->state & DEV_DISCONNECTED),
+ SN9C102_URB_TIMEOUT);
+ if (cam->state & DEV_DISCONNECTED)
+ return -ENODEV;
+ else if (cam->stream != STREAM_OFF) {
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "URB timeout reached. The camera is misconfigured. "
+ "To use it, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*****************************************************************************/
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static u8 sn9c102_strtou8(const char* buff, size_t len, ssize_t* count)
+{
+ char str[5];
+ char* endp;
+ unsigned long val;
+
+ if (len < 4) {
+ strncpy(str, buff, len);
+ str[len+1] = '\0';
+ } else {
+ strncpy(str, buff, 4);
+ str[4] = '\0';
+ }
+
+ val = simple_strtoul(str, &endp, 0);
+
+ *count = 0;
+ if (val <= 0xff)
+ *count = (ssize_t)(endp - str);
+ if ((*count) && (len == *count+1) && (buff[*count] == '\n'))
+ *count += 1;
+
+ return (u8)val;
+}
+
+/*
+ NOTE 1: being inside one of the following methods implies that the v4l
+ device exists for sure (see kobjects and reference counters)
+ NOTE 2: buffers are PAGE_SIZE long
+*/
+
+static ssize_t sn9c102_show_reg(struct class_device* cd, char* buf)
+{
+ struct sn9c102_device* cam;
+ ssize_t count;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ count = sprintf(buf, "%u\n", cam->sysfs.reg);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t
+sn9c102_store_reg(struct class_device* cd, const char* buf, size_t len)
+{
+ struct sn9c102_device* cam;
+ u8 index;
+ ssize_t count;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ index = sn9c102_strtou8(buf, len, &count);
+ if (index > 0x1f || !count) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EINVAL;
+ }
+
+ cam->sysfs.reg = index;
+
+ DBG(2, "Moved SN9C10X register index to 0x%02X", cam->sysfs.reg);
+ DBG(3, "Written bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t sn9c102_show_val(struct class_device* cd, char* buf)
+{
+ struct sn9c102_device* cam;
+ ssize_t count;
+ int val;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ if ((val = sn9c102_read_reg(cam, cam->sysfs.reg)) < 0) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EIO;
+ }
+
+ count = sprintf(buf, "%d\n", val);
+
+ DBG(3, "Read bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t
+sn9c102_store_val(struct class_device* cd, const char* buf, size_t len)
+{
+ struct sn9c102_device* cam;
+ u8 value;
+ ssize_t count;
+ int err;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ value = sn9c102_strtou8(buf, len, &count);
+ if (!count) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EINVAL;
+ }
+
+ err = sn9c102_write_reg(cam, value, cam->sysfs.reg);
+ if (err) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EIO;
+ }
+
+ DBG(2, "Written SN9C10X reg. 0x%02X, val. 0x%02X",
+ cam->sysfs.reg, value);
+ DBG(3, "Written bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t sn9c102_show_i2c_reg(struct class_device* cd, char* buf)
+{
+ struct sn9c102_device* cam;
+ ssize_t count;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ count = sprintf(buf, "%u\n", cam->sysfs.i2c_reg);
+
+ DBG(3, "Read bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t
+sn9c102_store_i2c_reg(struct class_device* cd, const char* buf, size_t len)
+{
+ struct sn9c102_device* cam;
+ u8 index;
+ ssize_t count;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ index = sn9c102_strtou8(buf, len, &count);
+ if (!count) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EINVAL;
+ }
+
+ cam->sysfs.i2c_reg = index;
+
+ DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg);
+ DBG(3, "Written bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t sn9c102_show_i2c_val(struct class_device* cd, char* buf)
+{
+ struct sn9c102_device* cam;
+ ssize_t count;
+ int val;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ if (!(cam->sensor.sysfs_ops & SN9C102_I2C_READ)) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENOSYS;
+ }
+
+ if ((val = sn9c102_i2c_read(cam, cam->sysfs.i2c_reg)) < 0) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EIO;
+ }
+
+ count = sprintf(buf, "%d\n", val);
+
+ DBG(3, "Read bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t
+sn9c102_store_i2c_val(struct class_device* cd, const char* buf, size_t len)
+{
+ struct sn9c102_device* cam;
+ u8 value;
+ ssize_t count;
+ int err;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ if (!(cam->sensor.sysfs_ops & SN9C102_I2C_WRITE)) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENOSYS;
+ }
+
+ value = sn9c102_strtou8(buf, len, &count);
+ if (!count) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EINVAL;
+ }
+
+ err = sn9c102_i2c_write(cam, cam->sysfs.i2c_reg, value);
+ if (err) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -EIO;
+ }
+
+ DBG(2, "Written sensor reg. 0x%02X, val. 0x%02X",
+ cam->sysfs.i2c_reg, value);
+ DBG(3, "Written bytes: %zd", count);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ return count;
+}
+
+
+static ssize_t
+sn9c102_store_green(struct class_device* cd, const char* buf, size_t len)
+{
+ struct sn9c102_device* cam;
+ enum sn9c102_bridge bridge;
+ ssize_t res = 0;
+ u8 value;
+ ssize_t count;
+
+ if (mutex_lock_interruptible(&sn9c102_sysfs_lock))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam) {
+ mutex_unlock(&sn9c102_sysfs_lock);
+ return -ENODEV;
+ }
+
+ bridge = cam->bridge;
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ value = sn9c102_strtou8(buf, len, &count);
+ if (!count)
+ return -EINVAL;
+
+ switch (bridge) {
+ case BRIDGE_SN9C101:
+ case BRIDGE_SN9C102:
+ if (value > 0x0f)
+ return -EINVAL;
+ if ((res = sn9c102_store_reg(cd, "0x11", 4)) >= 0)
+ res = sn9c102_store_val(cd, buf, len);
+ break;
+ case BRIDGE_SN9C103:
+ if (value > 0x7f)
+ return -EINVAL;
+ if ((res = sn9c102_store_reg(cd, "0x04", 4)) >= 0)
+ res = sn9c102_store_val(cd, buf, len);
+ break;
+ }
+
+ return res;
+}
+
+
+static ssize_t
+sn9c102_store_blue(struct class_device* cd, const char* buf, size_t len)
+{
+ ssize_t res = 0;
+ u8 value;
+ ssize_t count;
+
+ value = sn9c102_strtou8(buf, len, &count);
+ if (!count || value > 0x7f)
+ return -EINVAL;
+
+ if ((res = sn9c102_store_reg(cd, "0x06", 4)) >= 0)
+ res = sn9c102_store_val(cd, buf, len);
+
+ return res;
+}
+
+
+static ssize_t
+sn9c102_store_red(struct class_device* cd, const char* buf, size_t len)
+{
+ ssize_t res = 0;
+ u8 value;
+ ssize_t count;
+
+ value = sn9c102_strtou8(buf, len, &count);
+ if (!count || value > 0x7f)
+ return -EINVAL;
+
+ if ((res = sn9c102_store_reg(cd, "0x05", 4)) >= 0)
+ res = sn9c102_store_val(cd, buf, len);
+
+ return res;
+}
+
+
+static ssize_t sn9c102_show_frame_header(struct class_device* cd, char* buf)
+{
+ struct sn9c102_device* cam;
+ ssize_t count;
+
+ cam = video_get_drvdata(to_video_device(cd));
+ if (!cam)
+ return -ENODEV;
+
+ count = sizeof(cam->sysfs.frame_header);
+ memcpy(buf, cam->sysfs.frame_header, count);
+
+ DBG(3, "Frame header, read bytes: %zd", count);
+
+ return count;
+}
+
+
+static CLASS_DEVICE_ATTR(reg, S_IRUGO | S_IWUSR,
+ sn9c102_show_reg, sn9c102_store_reg);
+static CLASS_DEVICE_ATTR(val, S_IRUGO | S_IWUSR,
+ sn9c102_show_val, sn9c102_store_val);
+static CLASS_DEVICE_ATTR(i2c_reg, S_IRUGO | S_IWUSR,
+ sn9c102_show_i2c_reg, sn9c102_store_i2c_reg);
+static CLASS_DEVICE_ATTR(i2c_val, S_IRUGO | S_IWUSR,
+ sn9c102_show_i2c_val, sn9c102_store_i2c_val);
+static CLASS_DEVICE_ATTR(green, S_IWUGO, NULL, sn9c102_store_green);
+static CLASS_DEVICE_ATTR(blue, S_IWUGO, NULL, sn9c102_store_blue);
+static CLASS_DEVICE_ATTR(red, S_IWUGO, NULL, sn9c102_store_red);
+static CLASS_DEVICE_ATTR(frame_header, S_IRUGO,
+ sn9c102_show_frame_header, NULL);
+
+
+static void sn9c102_create_sysfs(struct sn9c102_device* cam)
+{
+ struct video_device *v4ldev = cam->v4ldev;
+
+ video_device_create_file(v4ldev, &class_device_attr_reg);
+ video_device_create_file(v4ldev, &class_device_attr_val);
+ video_device_create_file(v4ldev, &class_device_attr_frame_header);
+ if (cam->bridge == BRIDGE_SN9C101 || cam->bridge == BRIDGE_SN9C102)
+ video_device_create_file(v4ldev, &class_device_attr_green);
+ else if (cam->bridge == BRIDGE_SN9C103) {
+ video_device_create_file(v4ldev, &class_device_attr_blue);
+ video_device_create_file(v4ldev, &class_device_attr_red);
+ }
+ if (cam->sensor.sysfs_ops) {
+ video_device_create_file(v4ldev, &class_device_attr_i2c_reg);
+ video_device_create_file(v4ldev, &class_device_attr_i2c_val);
+ }
+}
+#endif /* CONFIG_VIDEO_ADV_DEBUG */
+
+/*****************************************************************************/
+
+static int
+sn9c102_set_pix_format(struct sn9c102_device* cam, struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, cam->reg[0x18] | 0x80, 0x18);
+ else
+ err += sn9c102_write_reg(cam, cam->reg[0x18] & 0x7f, 0x18);
+
+ return err ? -EIO : 0;
+}
+
+
+static int
+sn9c102_set_compression(struct sn9c102_device* cam,
+ struct v4l2_jpegcompression* compression)
+{
+ int err = 0;
+
+ if (compression->quality == 0)
+ err += sn9c102_write_reg(cam, cam->reg[0x17] | 0x01, 0x17);
+ else if (compression->quality == 1)
+ err += sn9c102_write_reg(cam, cam->reg[0x17] & 0xfe, 0x17);
+
+ return err ? -EIO : 0;
+}
+
+
+static int sn9c102_set_scale(struct sn9c102_device* cam, u8 scale)
+{
+ u8 r = 0;
+ int err = 0;
+
+ if (scale == 1)
+ r = cam->reg[0x18] & 0xcf;
+ else if (scale == 2) {
+ r = cam->reg[0x18] & 0xcf;
+ r |= 0x10;
+ } else if (scale == 4)
+ r = cam->reg[0x18] | 0x20;
+
+ err += sn9c102_write_reg(cam, r, 0x18);
+ if (err)
+ return -EIO;
+
+ PDBGG("Scaling factor: %u", scale);
+
+ return 0;
+}
+
+
+static int sn9c102_set_crop(struct sn9c102_device* cam, struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left),
+ v_start = (u8)(rect->top - s->cropcap.bounds.top),
+ h_size = (u8)(rect->width / 16),
+ v_size = (u8)(rect->height / 16);
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+ err += sn9c102_write_reg(cam, h_size, 0x15);
+ err += sn9c102_write_reg(cam, v_size, 0x16);
+ if (err)
+ return -EIO;
+
+ PDBGG("h_start, v_start, h_size, v_size, ho_size, vo_size "
+ "%u %u %u %u", h_start, v_start, h_size, v_size);
+
+ return 0;
+}
+
+
+static int sn9c102_init(struct sn9c102_device* cam)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_control ctrl;
+ struct v4l2_queryctrl *qctrl;
+ struct v4l2_rect* rect;
+ u8 i = 0;
+ int err = 0;
+
+ if (!(cam->state & DEV_INITIALIZED)) {
+ init_waitqueue_head(&cam->open);
+ qctrl = s->qctrl;
+ rect = &(s->cropcap.defrect);
+ } else { /* use current values */
+ qctrl = s->_qctrl;
+ rect = &(s->_rect);
+ }
+
+ err += sn9c102_set_scale(cam, rect->width / s->pix_format.width);
+ err += sn9c102_set_crop(cam, rect);
+ if (err)
+ return err;
+
+ if (s->init) {
+ err = s->init(cam);
+ if (err) {
+ DBG(3, "Sensor initialization failed");
+ return err;
+ }
+ }
+
+ if (!(cam->state & DEV_INITIALIZED))
+ cam->compression.quality = cam->reg[0x17] & 0x01 ? 0 : 1;
+ else
+ err += sn9c102_set_compression(cam, &cam->compression);
+ err += sn9c102_set_pix_format(cam, &s->pix_format);
+ if (s->set_pix_format)
+ err += s->set_pix_format(cam, &s->pix_format);
+ if (err)
+ return err;
+
+ if (s->pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X)
+ DBG(3, "Compressed video format is active, quality %d",
+ cam->compression.quality);
+ else
+ DBG(3, "Uncompressed video format is active");
+
+ if (s->set_crop)
+ if ((err = s->set_crop(cam, rect))) {
+ DBG(3, "set_crop() failed");
+ return err;
+ }
+
+ if (s->set_ctrl) {
+ for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+ if (s->qctrl[i].id != 0 &&
+ !(s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)) {
+ ctrl.id = s->qctrl[i].id;
+ ctrl.value = qctrl[i].default_value;
+ err = s->set_ctrl(cam, &ctrl);
+ if (err) {
+ DBG(3, "Set %s control failed",
+ s->qctrl[i].name);
+ return err;
+ }
+ DBG(3, "Image sensor supports '%s' control",
+ s->qctrl[i].name);
+ }
+ }
+
+ if (!(cam->state & DEV_INITIALIZED)) {
+ mutex_init(&cam->fileop_mutex);
+ spin_lock_init(&cam->queue_lock);
+ init_waitqueue_head(&cam->wait_frame);
+ init_waitqueue_head(&cam->wait_stream);
+ cam->nreadbuffers = 2;
+ memcpy(s->_qctrl, s->qctrl, sizeof(s->qctrl));
+ memcpy(&(s->_rect), &(s->cropcap.defrect),
+ sizeof(struct v4l2_rect));
+ cam->state |= DEV_INITIALIZED;
+ }
+
+ DBG(2, "Initialization succeeded");
+ return 0;
+}
+
+
+static void sn9c102_release_resources(struct sn9c102_device* cam)
+{
+ mutex_lock(&sn9c102_sysfs_lock);
+
+ DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor);
+ video_set_drvdata(cam->v4ldev, NULL);
+ video_unregister_device(cam->v4ldev);
+
+ usb_put_dev(cam->usbdev);
+
+ mutex_unlock(&sn9c102_sysfs_lock);
+
+ kfree(cam->control_buffer);
+}
+
+/*****************************************************************************/
+
+static int sn9c102_open(struct inode* inode, struct file* filp)
+{
+ struct sn9c102_device* cam;
+ int err = 0;
+
+ /*
+ This is the only safe way to prevent race conditions with
+ disconnect
+ */
+ if (!down_read_trylock(&sn9c102_disconnect))
+ return -ERESTARTSYS;
+
+ cam = video_get_drvdata(video_devdata(filp));
+
+ if (mutex_lock_interruptible(&cam->dev_mutex)) {
+ up_read(&sn9c102_disconnect);
+ return -ERESTARTSYS;
+ }
+
+ if (cam->users) {
+ DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor);
+ if ((filp->f_flags & O_NONBLOCK) ||
+ (filp->f_flags & O_NDELAY)) {
+ err = -EWOULDBLOCK;
+ goto out;
+ }
+ mutex_unlock(&cam->dev_mutex);
+ err = wait_event_interruptible_exclusive(cam->open,
+ cam->state & DEV_DISCONNECTED
+ || !cam->users);
+ if (err) {
+ up_read(&sn9c102_disconnect);
+ return err;
+ }
+ if (cam->state & DEV_DISCONNECTED) {
+ up_read(&sn9c102_disconnect);
+ return -ENODEV;
+ }
+ mutex_lock(&cam->dev_mutex);
+ }
+
+
+ if (cam->state & DEV_MISCONFIGURED) {
+ err = sn9c102_init(cam);
+ if (err) {
+ DBG(1, "Initialization failed again. "
+ "I will retry on next open().");
+ goto out;
+ }
+ cam->state &= ~DEV_MISCONFIGURED;
+ }
+
+ if ((err = sn9c102_start_transfer(cam)))
+ goto out;
+
+ filp->private_data = cam;
+ cam->users++;
+ cam->io = IO_NONE;
+ cam->stream = STREAM_OFF;
+ cam->nbuffers = 0;
+ cam->frame_count = 0;
+ sn9c102_empty_framequeues(cam);
+
+ DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor);
+
+out:
+ mutex_unlock(&cam->dev_mutex);
+ up_read(&sn9c102_disconnect);
+ return err;
+}
+
+
+static int sn9c102_release(struct inode* inode, struct file* filp)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+
+ mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */
+
+ sn9c102_stop_transfer(cam);
+
+ sn9c102_release_buffers(cam);
+
+ if (cam->state & DEV_DISCONNECTED) {
+ sn9c102_release_resources(cam);
+ mutex_unlock(&cam->dev_mutex);
+ kfree(cam);
+ return 0;
+ }
+
+ cam->users--;
+ wake_up_interruptible_nr(&cam->open, 1);
+
+ DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor);
+
+ mutex_unlock(&cam->dev_mutex);
+
+ return 0;
+}
+
+
+static ssize_t
+sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+ struct sn9c102_frame_t* f, * i;
+ unsigned long lock_flags;
+ long timeout;
+ int err = 0;
+
+ if (mutex_lock_interruptible(&cam->fileop_mutex))
+ return -ERESTARTSYS;
+
+ if (cam->state & DEV_DISCONNECTED) {
+ DBG(1, "Device not present");
+ mutex_unlock(&cam->fileop_mutex);
+ return -ENODEV;
+ }
+
+ if (cam->state & DEV_MISCONFIGURED) {
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
+ mutex_unlock(&cam->fileop_mutex);
+ return -EIO;
+ }
+
+ if (cam->io == IO_MMAP) {
+ DBG(3, "Close and open the device again to choose "
+ "the read method");
+ mutex_unlock(&cam->fileop_mutex);
+ return -EINVAL;
+ }
+
+ if (cam->io == IO_NONE) {
+ if (!sn9c102_request_buffers(cam,cam->nreadbuffers, IO_READ)) {
+ DBG(1, "read() failed, not enough memory");
+ mutex_unlock(&cam->fileop_mutex);
+ return -ENOMEM;
+ }
+ cam->io = IO_READ;
+ cam->stream = STREAM_ON;
+ }
+
+ if (list_empty(&cam->inqueue)) {
+ if (!list_empty(&cam->outqueue))
+ sn9c102_empty_framequeues(cam);
+ sn9c102_queue_unusedframes(cam);
+ }
+
+ if (!count) {
+ mutex_unlock(&cam->fileop_mutex);
+ return 0;
+ }
+
+ if (list_empty(&cam->outqueue)) {
+ if (filp->f_flags & O_NONBLOCK) {
+ mutex_unlock(&cam->fileop_mutex);
+ return -EAGAIN;
+ }
+ timeout = wait_event_interruptible_timeout
+ ( cam->wait_frame,
+ (!list_empty(&cam->outqueue)) ||
+ (cam->state & DEV_DISCONNECTED) ||
+ (cam->state & DEV_MISCONFIGURED),
+ cam->module_param.frame_timeout *
+ 1000 * msecs_to_jiffies(1) );
+ if (timeout < 0) {
+ mutex_unlock(&cam->fileop_mutex);
+ return timeout;
+ }
+ if (cam->state & DEV_DISCONNECTED) {
+ mutex_unlock(&cam->fileop_mutex);
+ return -ENODEV;
+ }
+ if (!timeout || (cam->state & DEV_MISCONFIGURED)) {
+ mutex_unlock(&cam->fileop_mutex);
+ return -EIO;
+ }
+ }
+
+ f = list_entry(cam->outqueue.prev, struct sn9c102_frame_t, frame);
+
+ if (count > f->buf.bytesused)
+ count = f->buf.bytesused;
+
+ if (copy_to_user(buf, f->bufmem, count)) {
+ err = -EFAULT;
+ goto exit;
+ }
+ *f_pos += count;
+
+exit:
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ list_for_each_entry(i, &cam->outqueue, frame)
+ i->state = F_UNUSED;
+ INIT_LIST_HEAD(&cam->outqueue);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+
+ sn9c102_queue_unusedframes(cam);
+
+ PDBGG("Frame #%lu, bytes read: %zu",
+ (unsigned long)f->buf.index, count);
+
+ mutex_unlock(&cam->fileop_mutex);
+
+ return count;
+}
+
+
+static unsigned int sn9c102_poll(struct file *filp, poll_table *wait)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+ struct sn9c102_frame_t* f;
+ unsigned long lock_flags;
+ unsigned int mask = 0;
+
+ if (mutex_lock_interruptible(&cam->fileop_mutex))
+ return POLLERR;
+
+ if (cam->state & DEV_DISCONNECTED) {
+ DBG(1, "Device not present");
+ goto error;
+ }
+
+ if (cam->state & DEV_MISCONFIGURED) {
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
+ goto error;
+ }
+
+ if (cam->io == IO_NONE) {
+ if (!sn9c102_request_buffers(cam, cam->nreadbuffers,
+ IO_READ)) {
+ DBG(1, "poll() failed, not enough memory");
+ goto error;
+ }
+ cam->io = IO_READ;
+ cam->stream = STREAM_ON;
+ }
+
+ if (cam->io == IO_READ) {
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ list_for_each_entry(f, &cam->outqueue, frame)
+ f->state = F_UNUSED;
+ INIT_LIST_HEAD(&cam->outqueue);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+ sn9c102_queue_unusedframes(cam);
+ }
+
+ poll_wait(filp, &cam->wait_frame, wait);
+
+ if (!list_empty(&cam->outqueue))
+ mask |= POLLIN | POLLRDNORM;
+
+ mutex_unlock(&cam->fileop_mutex);
+
+ return mask;
+
+error:
+ mutex_unlock(&cam->fileop_mutex);
+ return POLLERR;
+}
+
+
+static void sn9c102_vm_open(struct vm_area_struct* vma)
+{
+ struct sn9c102_frame_t* f = vma->vm_private_data;
+ f->vma_use_count++;
+}
+
+
+static void sn9c102_vm_close(struct vm_area_struct* vma)
+{
+ /* NOTE: buffers are not freed here */
+ struct sn9c102_frame_t* f = vma->vm_private_data;
+ f->vma_use_count--;
+}
+
+
+static struct vm_operations_struct sn9c102_vm_ops = {
+ .open = sn9c102_vm_open,
+ .close = sn9c102_vm_close,
+};
+
+
+static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+ unsigned long size = vma->vm_end - vma->vm_start,
+ start = vma->vm_start;
+ void *pos;
+ u32 i;
+
+ if (mutex_lock_interruptible(&cam->fileop_mutex))
+ return -ERESTARTSYS;
+
+ if (cam->state & DEV_DISCONNECTED) {
+ DBG(1, "Device not present");
+ mutex_unlock(&cam->fileop_mutex);
+ return -ENODEV;
+ }
+
+ if (cam->state & DEV_MISCONFIGURED) {
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
+ mutex_unlock(&cam->fileop_mutex);
+ return -EIO;
+ }
+
+ if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) ||
+ size != PAGE_ALIGN(cam->frame[0].buf.length)) {
+ mutex_unlock(&cam->fileop_mutex);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < cam->nbuffers; i++) {
+ if ((cam->frame[i].buf.m.offset>>PAGE_SHIFT) == vma->vm_pgoff)
+ break;
+ }
+ if (i == cam->nbuffers) {
+ mutex_unlock(&cam->fileop_mutex);
+ return -EINVAL;
+ }
+
+ vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_RESERVED;
+
+ pos = cam->frame[i].bufmem;
+ while (size > 0) { /* size is page-aligned */
+ if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
+ mutex_unlock(&cam->fileop_mutex);
+ return -EAGAIN;
+ }
+ start += PAGE_SIZE;
+ pos += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ vma->vm_ops = &sn9c102_vm_ops;
+ vma->vm_private_data = &cam->frame[i];
+
+ sn9c102_vm_open(vma);
+
+ mutex_unlock(&cam->fileop_mutex);
+
+ return 0;
+}
+
+/*****************************************************************************/
+
+static int
+sn9c102_vidioc_querycap(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_capability cap = {
+ .driver = "sn9c102",
+ .version = SN9C102_MODULE_VERSION_CODE,
+ .capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING,
+ };
+
+ strlcpy(cap.card, cam->v4ldev->name, sizeof(cap.card));
+ if (usb_make_path(cam->usbdev, cap.bus_info, sizeof(cap.bus_info)) < 0)
+ strlcpy(cap.bus_info, cam->usbdev->dev.bus_id,
+ sizeof(cap.bus_info));
+
+ if (copy_to_user(arg, &cap, sizeof(cap)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_enuminput(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_input i;
+
+ if (copy_from_user(&i, arg, sizeof(i)))
+ return -EFAULT;
+
+ if (i.index)
+ return -EINVAL;
+
+ memset(&i, 0, sizeof(i));
+ strcpy(i.name, "Camera");
+ i.type = V4L2_INPUT_TYPE_CAMERA;
+
+ if (copy_to_user(arg, &i, sizeof(i)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_g_input(struct sn9c102_device* cam, void __user * arg)
+{
+ int index = 0;
+
+ if (copy_to_user(arg, &index, sizeof(index)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_s_input(struct sn9c102_device* cam, void __user * arg)
+{
+ int index;
+
+ if (copy_from_user(&index, arg, sizeof(index)))
+ return -EFAULT;
+
+ if (index != 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_query_ctrl(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_queryctrl qc;
+ u8 i;
+
+ if (copy_from_user(&qc, arg, sizeof(qc)))
+ return -EFAULT;
+
+ for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+ if (qc.id && qc.id == s->qctrl[i].id) {
+ memcpy(&qc, &(s->qctrl[i]), sizeof(qc));
+ if (copy_to_user(arg, &qc, sizeof(qc)))
+ return -EFAULT;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+
+static int
+sn9c102_vidioc_g_ctrl(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_control ctrl;
+ int err = 0;
+ u8 i;
+
+ if (!s->get_ctrl && !s->set_ctrl)
+ return -EINVAL;
+
+ if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
+ return -EFAULT;
+
+ if (!s->get_ctrl) {
+ for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+ if (ctrl.id && ctrl.id == s->qctrl[i].id) {
+ ctrl.value = s->_qctrl[i].default_value;
+ goto exit;
+ }
+ return -EINVAL;
+ } else
+ err = s->get_ctrl(cam, &ctrl);
+
+exit:
+ if (copy_to_user(arg, &ctrl, sizeof(ctrl)))
+ return -EFAULT;
+
+ return err;
+}
+
+
+static int
+sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_control ctrl;
+ u8 i;
+ int err = 0;
+
+ if (!s->set_ctrl)
+ return -EINVAL;
+
+ if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
+ return -EFAULT;
+
+ for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+ if (ctrl.id == s->qctrl[i].id) {
+ if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)
+ return -EINVAL;
+ if (ctrl.value < s->qctrl[i].minimum ||
+ ctrl.value > s->qctrl[i].maximum)
+ return -ERANGE;
+ ctrl.value -= ctrl.value % s->qctrl[i].step;
+ break;
+ }
+
+ if ((err = s->set_ctrl(cam, &ctrl)))
+ return err;
+
+ s->_qctrl[i].default_value = ctrl.value;
+
+ PDBGG("VIDIOC_S_CTRL: id %lu, value %lu",
+ (unsigned long)ctrl.id, (unsigned long)ctrl.value);
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_cropcap(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_cropcap* cc = &(cam->sensor.cropcap);
+
+ cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ cc->pixelaspect.numerator = 1;
+ cc->pixelaspect.denominator = 1;
+
+ if (copy_to_user(arg, cc, sizeof(*cc)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_g_crop(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_crop crop = {
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ };
+
+ memcpy(&(crop.c), &(s->_rect), sizeof(struct v4l2_rect));
+
+ if (copy_to_user(arg, &crop, sizeof(crop)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_s_crop(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_crop crop;
+ struct v4l2_rect* rect;
+ struct v4l2_rect* bounds = &(s->cropcap.bounds);
+ struct v4l2_pix_format* pix_format = &(s->pix_format);
+ u8 scale;
+ const enum sn9c102_stream_state stream = cam->stream;
+ const u32 nbuffers = cam->nbuffers;
+ u32 i;
+ int err = 0;
+
+ if (copy_from_user(&crop, arg, sizeof(crop)))
+ return -EFAULT;
+
+ rect = &(crop.c);
+
+ if (crop.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ if (cam->module_param.force_munmap)
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].vma_use_count) {
+ DBG(3, "VIDIOC_S_CROP failed. "
+ "Unmap the buffers first.");
+ return -EINVAL;
+ }
+
+ /* Preserve R,G or B origin */
+ rect->left = (s->_rect.left & 1L) ? rect->left | 1L : rect->left & ~1L;
+ rect->top = (s->_rect.top & 1L) ? rect->top | 1L : rect->top & ~1L;
+
+ if (rect->width < 16)
+ rect->width = 16;
+ if (rect->height < 16)
+ rect->height = 16;
+ if (rect->width > bounds->width)
+ rect->width = bounds->width;
+ if (rect->height > bounds->height)
+ rect->height = bounds->height;
+ if (rect->left < bounds->left)
+ rect->left = bounds->left;
+ if (rect->top < bounds->top)
+ rect->top = bounds->top;
+ if (rect->left + rect->width > bounds->left + bounds->width)
+ rect->left = bounds->left+bounds->width - rect->width;
+ if (rect->top + rect->height > bounds->top + bounds->height)
+ rect->top = bounds->top+bounds->height - rect->height;
+
+ rect->width &= ~15L;
+ rect->height &= ~15L;
+
+ if (SN9C102_PRESERVE_IMGSCALE) {
+ /* Calculate the actual scaling factor */
+ u32 a, b;
+ a = rect->width * rect->height;
+ b = pix_format->width * pix_format->height;
+ scale = b ? (u8)((a / b) < 4 ? 1 : ((a / b) < 16 ? 2 : 4)) : 1;
+ } else
+ scale = 1;
+
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
+
+ if (copy_to_user(arg, &crop, sizeof(crop))) {
+ cam->stream = stream;
+ return -EFAULT;
+ }
+
+ if (cam->module_param.force_munmap || cam->io == IO_READ)
+ sn9c102_release_buffers(cam);
+
+ err = sn9c102_set_crop(cam, rect);
+ if (s->set_crop)
+ err += s->set_crop(cam, rect);
+ err += sn9c102_set_scale(cam, scale);
+
+ if (err) { /* atomic, no rollback in ioctl() */
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_CROP failed because of hardware problems. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -EIO;
+ }
+
+ s->pix_format.width = rect->width/scale;
+ s->pix_format.height = rect->height/scale;
+ memcpy(&(s->_rect), rect, sizeof(*rect));
+
+ if ((cam->module_param.force_munmap || cam->io == IO_READ) &&
+ nbuffers != sn9c102_request_buffers(cam, nbuffers, cam->io)) {
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_CROP failed because of not enough memory. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -ENOMEM;
+ }
+
+ if (cam->io == IO_READ)
+ sn9c102_empty_framequeues(cam);
+ else if (cam->module_param.force_munmap)
+ sn9c102_requeue_outqueue(cam);
+
+ cam->stream = stream;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_enum_fmt(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_fmtdesc fmtd;
+
+ if (copy_from_user(&fmtd, arg, sizeof(fmtd)))
+ return -EFAULT;
+
+ if (fmtd.index == 0) {
+ strcpy(fmtd.description, "bayer rgb");
+ fmtd.pixelformat = V4L2_PIX_FMT_SBGGR8;
+ } else if (fmtd.index == 1) {
+ strcpy(fmtd.description, "compressed");
+ fmtd.pixelformat = V4L2_PIX_FMT_SN9C10X;
+ fmtd.flags = V4L2_FMT_FLAG_COMPRESSED;
+ } else
+ return -EINVAL;
+
+ fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ memset(&fmtd.reserved, 0, sizeof(fmtd.reserved));
+
+ if (copy_to_user(arg, &fmtd, sizeof(fmtd)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_g_fmt(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_format format;
+ struct v4l2_pix_format* pfmt = &(cam->sensor.pix_format);
+
+ if (copy_from_user(&format, arg, sizeof(format)))
+ return -EFAULT;
+
+ if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ pfmt->bytesperline = (pfmt->pixelformat==V4L2_PIX_FMT_SN9C10X)
+ ? 0 : (pfmt->width * pfmt->priv) / 8;
+ pfmt->sizeimage = pfmt->height * ((pfmt->width*pfmt->priv)/8);
+ pfmt->field = V4L2_FIELD_NONE;
+ memcpy(&(format.fmt.pix), pfmt, sizeof(*pfmt));
+
+ if (copy_to_user(arg, &format, sizeof(format)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_try_s_fmt(struct sn9c102_device* cam, unsigned int cmd,
+ void __user * arg)
+{
+ struct sn9c102_sensor* s = &cam->sensor;
+ struct v4l2_format format;
+ struct v4l2_pix_format* pix;
+ struct v4l2_pix_format* pfmt = &(s->pix_format);
+ struct v4l2_rect* bounds = &(s->cropcap.bounds);
+ struct v4l2_rect rect;
+ u8 scale;
+ const enum sn9c102_stream_state stream = cam->stream;
+ const u32 nbuffers = cam->nbuffers;
+ u32 i;
+ int err = 0;
+
+ if (copy_from_user(&format, arg, sizeof(format)))
+ return -EFAULT;
+
+ pix = &(format.fmt.pix);
+
+ if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ memcpy(&rect, &(s->_rect), sizeof(rect));
+
+ { /* calculate the actual scaling factor */
+ u32 a, b;
+ a = rect.width * rect.height;
+ b = pix->width * pix->height;
+ scale = b ? (u8)((a / b) < 4 ? 1 : ((a / b) < 16 ? 2 : 4)) : 1;
+ }
+
+ rect.width = scale * pix->width;
+ rect.height = scale * pix->height;
+
+ if (rect.width < 16)
+ rect.width = 16;
+ if (rect.height < 16)
+ rect.height = 16;
+ if (rect.width > bounds->left + bounds->width - rect.left)
+ rect.width = bounds->left + bounds->width - rect.left;
+ if (rect.height > bounds->top + bounds->height - rect.top)
+ rect.height = bounds->top + bounds->height - rect.top;
+
+ rect.width &= ~15L;
+ rect.height &= ~15L;
+
+ { /* adjust the scaling factor */
+ u32 a, b;
+ a = rect.width * rect.height;
+ b = pix->width * pix->height;
+ scale = b ? (u8)((a / b) < 4 ? 1 : ((a / b) < 16 ? 2 : 4)) : 1;
+ }
+
+ pix->width = rect.width / scale;
+ pix->height = rect.height / scale;
+
+ if (pix->pixelformat != V4L2_PIX_FMT_SN9C10X &&
+ pix->pixelformat != V4L2_PIX_FMT_SBGGR8)
+ pix->pixelformat = pfmt->pixelformat;
+ pix->priv = pfmt->priv; /* bpp */
+ pix->colorspace = pfmt->colorspace;
+ pix->bytesperline = (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ ? 0 : (pix->width * pix->priv) / 8;
+ pix->sizeimage = pix->height * ((pix->width * pix->priv) / 8);
+ pix->field = V4L2_FIELD_NONE;
+
+ if (cmd == VIDIOC_TRY_FMT) {
+ if (copy_to_user(arg, &format, sizeof(format)))
+ return -EFAULT;
+ return 0;
+ }
+
+ if (cam->module_param.force_munmap)
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].vma_use_count) {
+ DBG(3, "VIDIOC_S_FMT failed. Unmap the "
+ "buffers first.");
+ return -EINVAL;
+ }
+
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
+
+ if (copy_to_user(arg, &format, sizeof(format))) {
+ cam->stream = stream;
+ return -EFAULT;
+ }
+
+ if (cam->module_param.force_munmap || cam->io == IO_READ)
+ sn9c102_release_buffers(cam);
+
+ err += sn9c102_set_pix_format(cam, pix);
+ err += sn9c102_set_crop(cam, &rect);
+ if (s->set_pix_format)
+ err += s->set_pix_format(cam, pix);
+ if (s->set_crop)
+ err += s->set_crop(cam, &rect);
+ err += sn9c102_set_scale(cam, scale);
+
+ if (err) { /* atomic, no rollback in ioctl() */
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_FMT failed because of hardware problems. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -EIO;
+ }
+
+ memcpy(pfmt, pix, sizeof(*pix));
+ memcpy(&(s->_rect), &rect, sizeof(rect));
+
+ if ((cam->module_param.force_munmap || cam->io == IO_READ) &&
+ nbuffers != sn9c102_request_buffers(cam, nbuffers, cam->io)) {
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_FMT failed because of not enough memory. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -ENOMEM;
+ }
+
+ if (cam->io == IO_READ)
+ sn9c102_empty_framequeues(cam);
+ else if (cam->module_param.force_munmap)
+ sn9c102_requeue_outqueue(cam);
+
+ cam->stream = stream;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_g_jpegcomp(struct sn9c102_device* cam, void __user * arg)
+{
+ if (copy_to_user(arg, &cam->compression,
+ sizeof(cam->compression)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_s_jpegcomp(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_jpegcompression jc;
+ const enum sn9c102_stream_state stream = cam->stream;
+ int err = 0;
+
+ if (copy_from_user(&jc, arg, sizeof(jc)))
+ return -EFAULT;
+
+ if (jc.quality != 0 && jc.quality != 1)
+ return -EINVAL;
+
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
+
+ err += sn9c102_set_compression(cam, &jc);
+ if (err) { /* atomic, no rollback in ioctl() */
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_JPEGCOMP failed because of hardware "
+ "problems. To use the camera, close and open "
+ "/dev/video%d again.", cam->v4ldev->minor);
+ return -EIO;
+ }
+
+ cam->compression.quality = jc.quality;
+
+ cam->stream = stream;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_reqbufs(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_requestbuffers rb;
+ u32 i;
+ int err;
+
+ if (copy_from_user(&rb, arg, sizeof(rb)))
+ return -EFAULT;
+
+ if (rb.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ rb.memory != V4L2_MEMORY_MMAP)
+ return -EINVAL;
+
+ if (cam->io == IO_READ) {
+ DBG(3, "Close and open the device again to choose the mmap "
+ "I/O method");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].vma_use_count) {
+ DBG(3, "VIDIOC_REQBUFS failed. Previous buffers are "
+ "still mapped.");
+ return -EINVAL;
+ }
+
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
+
+ sn9c102_empty_framequeues(cam);
+
+ sn9c102_release_buffers(cam);
+ if (rb.count)
+ rb.count = sn9c102_request_buffers(cam, rb.count, IO_MMAP);
+
+ if (copy_to_user(arg, &rb, sizeof(rb))) {
+ sn9c102_release_buffers(cam);
+ cam->io = IO_NONE;
+ return -EFAULT;
+ }
+
+ cam->io = rb.count ? IO_MMAP : IO_NONE;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_querybuf(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_buffer b;
+
+ if (copy_from_user(&b, arg, sizeof(b)))
+ return -EFAULT;
+
+ if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ b.index >= cam->nbuffers || cam->io != IO_MMAP)
+ return -EINVAL;
+
+ memcpy(&b, &cam->frame[b.index].buf, sizeof(b));
+
+ if (cam->frame[b.index].vma_use_count)
+ b.flags |= V4L2_BUF_FLAG_MAPPED;
+
+ if (cam->frame[b.index].state == F_DONE)
+ b.flags |= V4L2_BUF_FLAG_DONE;
+ else if (cam->frame[b.index].state != F_UNUSED)
+ b.flags |= V4L2_BUF_FLAG_QUEUED;
+
+ if (copy_to_user(arg, &b, sizeof(b)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_qbuf(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_buffer b;
+ unsigned long lock_flags;
+
+ if (copy_from_user(&b, arg, sizeof(b)))
+ return -EFAULT;
+
+ if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ b.index >= cam->nbuffers || cam->io != IO_MMAP)
+ return -EINVAL;
+
+ if (cam->frame[b.index].state != F_UNUSED)
+ return -EINVAL;
+
+ cam->frame[b.index].state = F_QUEUED;
+
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ list_add_tail(&cam->frame[b.index].frame, &cam->inqueue);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+
+ PDBGG("Frame #%lu queued", (unsigned long)b.index);
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_dqbuf(struct sn9c102_device* cam, struct file* filp,
+ void __user * arg)
+{
+ struct v4l2_buffer b;
+ struct sn9c102_frame_t *f;
+ unsigned long lock_flags;
+ long timeout;
+
+ if (copy_from_user(&b, arg, sizeof(b)))
+ return -EFAULT;
+
+ if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
+ return -EINVAL;
+
+ if (list_empty(&cam->outqueue)) {
+ if (cam->stream == STREAM_OFF)
+ return -EINVAL;
+ if (filp->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+ timeout = wait_event_interruptible_timeout
+ ( cam->wait_frame,
+ (!list_empty(&cam->outqueue)) ||
+ (cam->state & DEV_DISCONNECTED) ||
+ (cam->state & DEV_MISCONFIGURED),
+ cam->module_param.frame_timeout *
+ 1000 * msecs_to_jiffies(1) );
+ if (timeout < 0)
+ return timeout;
+ if (cam->state & DEV_DISCONNECTED)
+ return -ENODEV;
+ if (!timeout || (cam->state & DEV_MISCONFIGURED))
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ f = list_entry(cam->outqueue.next, struct sn9c102_frame_t, frame);
+ list_del(cam->outqueue.next);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+
+ f->state = F_UNUSED;
+
+ memcpy(&b, &f->buf, sizeof(b));
+ if (f->vma_use_count)
+ b.flags |= V4L2_BUF_FLAG_MAPPED;
+
+ if (copy_to_user(arg, &b, sizeof(b)))
+ return -EFAULT;
+
+ PDBGG("Frame #%lu dequeued", (unsigned long)f->buf.index);
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_streamon(struct sn9c102_device* cam, void __user * arg)
+{
+ int type;
+
+ if (copy_from_user(&type, arg, sizeof(type)))
+ return -EFAULT;
+
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
+ return -EINVAL;
+
+ if (list_empty(&cam->inqueue))
+ return -EINVAL;
+
+ cam->stream = STREAM_ON;
+
+ DBG(3, "Stream on");
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_streamoff(struct sn9c102_device* cam, void __user * arg)
+{
+ int type, err;
+
+ if (copy_from_user(&type, arg, sizeof(type)))
+ return -EFAULT;
+
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
+ return -EINVAL;
+
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
+
+ sn9c102_empty_framequeues(cam);
+
+ DBG(3, "Stream off");
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_g_parm(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_streamparm sp;
+
+ if (copy_from_user(&sp, arg, sizeof(sp)))
+ return -EFAULT;
+
+ if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ sp.parm.capture.extendedmode = 0;
+ sp.parm.capture.readbuffers = cam->nreadbuffers;
+
+ if (copy_to_user(arg, &sp, sizeof(sp)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_s_parm(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_streamparm sp;
+
+ if (copy_from_user(&sp, arg, sizeof(sp)))
+ return -EFAULT;
+
+ if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ sp.parm.capture.extendedmode = 0;
+
+ if (sp.parm.capture.readbuffers == 0)
+ sp.parm.capture.readbuffers = cam->nreadbuffers;
+
+ if (sp.parm.capture.readbuffers > SN9C102_MAX_FRAMES)
+ sp.parm.capture.readbuffers = SN9C102_MAX_FRAMES;
+
+ if (copy_to_user(arg, &sp, sizeof(sp)))
+ return -EFAULT;
+
+ cam->nreadbuffers = sp.parm.capture.readbuffers;
+
+ return 0;
+}
+
+
+static int sn9c102_ioctl_v4l2(struct inode* inode, struct file* filp,
+ unsigned int cmd, void __user * arg)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+
+ switch (cmd) {
+
+ case VIDIOC_QUERYCAP:
+ return sn9c102_vidioc_querycap(cam, arg);
+
+ case VIDIOC_ENUMINPUT:
+ return sn9c102_vidioc_enuminput(cam, arg);
+
+ case VIDIOC_G_INPUT:
+ return sn9c102_vidioc_g_input(cam, arg);
+
+ case VIDIOC_S_INPUT:
+ return sn9c102_vidioc_s_input(cam, arg);
+
+ case VIDIOC_QUERYCTRL:
+ return sn9c102_vidioc_query_ctrl(cam, arg);
+
+ case VIDIOC_G_CTRL:
+ return sn9c102_vidioc_g_ctrl(cam, arg);
+
+ case VIDIOC_S_CTRL_OLD:
+ case VIDIOC_S_CTRL:
+ return sn9c102_vidioc_s_ctrl(cam, arg);
+
+ case VIDIOC_CROPCAP_OLD:
+ case VIDIOC_CROPCAP:
+ return sn9c102_vidioc_cropcap(cam, arg);
+
+ case VIDIOC_G_CROP:
+ return sn9c102_vidioc_g_crop(cam, arg);
+
+ case VIDIOC_S_CROP:
+ return sn9c102_vidioc_s_crop(cam, arg);
+
+ case VIDIOC_ENUM_FMT:
+ return sn9c102_vidioc_enum_fmt(cam, arg);
+
+ case VIDIOC_G_FMT:
+ return sn9c102_vidioc_g_fmt(cam, arg);
+
+ case VIDIOC_TRY_FMT:
+ case VIDIOC_S_FMT:
+ return sn9c102_vidioc_try_s_fmt(cam, cmd, arg);
+
+ case VIDIOC_G_JPEGCOMP:
+ return sn9c102_vidioc_g_jpegcomp(cam, arg);
+
+ case VIDIOC_S_JPEGCOMP:
+ return sn9c102_vidioc_s_jpegcomp(cam, arg);
+
+ case VIDIOC_REQBUFS:
+ return sn9c102_vidioc_reqbufs(cam, arg);
+
+ case VIDIOC_QUERYBUF:
+ return sn9c102_vidioc_querybuf(cam, arg);
+
+ case VIDIOC_QBUF:
+ return sn9c102_vidioc_qbuf(cam, arg);
+
+ case VIDIOC_DQBUF:
+ return sn9c102_vidioc_dqbuf(cam, filp, arg);
+
+ case VIDIOC_STREAMON:
+ return sn9c102_vidioc_streamon(cam, arg);
+
+ case VIDIOC_STREAMOFF:
+ return sn9c102_vidioc_streamoff(cam, arg);
+
+ case VIDIOC_G_PARM:
+ return sn9c102_vidioc_g_parm(cam, arg);
+
+ case VIDIOC_S_PARM_OLD:
+ case VIDIOC_S_PARM:
+ return sn9c102_vidioc_s_parm(cam, arg);
+
+ case VIDIOC_G_STD:
+ case VIDIOC_S_STD:
+ case VIDIOC_QUERYSTD:
+ case VIDIOC_ENUMSTD:
+ case VIDIOC_QUERYMENU:
+ return -EINVAL;
+
+ default:
+ return -EINVAL;
+
+ }
+}
+
+
+static int sn9c102_ioctl(struct inode* inode, struct file* filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+ int err = 0;
+
+ if (mutex_lock_interruptible(&cam->fileop_mutex))
+ return -ERESTARTSYS;
+
+ if (cam->state & DEV_DISCONNECTED) {
+ DBG(1, "Device not present");
+ mutex_unlock(&cam->fileop_mutex);
+ return -ENODEV;
+ }
+
+ if (cam->state & DEV_MISCONFIGURED) {
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
+ mutex_unlock(&cam->fileop_mutex);
+ return -EIO;
+ }
+
+ V4LDBG(3, "sn9c102", cmd);
+
+ err = sn9c102_ioctl_v4l2(inode, filp, cmd, (void __user *)arg);
+
+ mutex_unlock(&cam->fileop_mutex);
+
+ return err;
+}
+
+/*****************************************************************************/
+
+static struct file_operations sn9c102_fops = {
+ .owner = THIS_MODULE,
+ .open = sn9c102_open,
+ .release = sn9c102_release,
+ .ioctl = sn9c102_ioctl,
+ .read = sn9c102_read,
+ .poll = sn9c102_poll,
+ .mmap = sn9c102_mmap,
+ .llseek = no_llseek,
+};
+
+/*****************************************************************************/
+
+/* It exists a single interface only. We do not need to validate anything. */
+static int
+sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct sn9c102_device* cam;
+ static unsigned int dev_nr = 0;
+ unsigned int i;
+ int err = 0, r;
+
+ if (!(cam = kzalloc(sizeof(struct sn9c102_device), GFP_KERNEL)))
+ return -ENOMEM;
+
+ cam->usbdev = udev;
+
+ if (!(cam->control_buffer = kzalloc(8, GFP_KERNEL))) {
+ DBG(1, "kmalloc() failed");
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ if (!(cam->v4ldev = video_device_alloc())) {
+ DBG(1, "video_device_alloc() failed");
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ mutex_init(&cam->dev_mutex);
+
+ r = sn9c102_read_reg(cam, 0x00);
+ if (r < 0 || r != 0x10) {
+ DBG(1, "Sorry, this is not a SN9C10x based camera "
+ "(vid/pid 0x%04X/0x%04X)", id->idVendor, id->idProduct);
+ err = -ENODEV;
+ goto fail;
+ }
+
+ cam->bridge = (id->idProduct & 0xffc0) == 0x6080 ?
+ BRIDGE_SN9C103 : BRIDGE_SN9C102;
+ switch (cam->bridge) {
+ case BRIDGE_SN9C101:
+ case BRIDGE_SN9C102:
+ DBG(2, "SN9C10[12] PC Camera Controller detected "
+ "(vid/pid 0x%04X/0x%04X)", id->idVendor, id->idProduct);
+ break;
+ case BRIDGE_SN9C103:
+ DBG(2, "SN9C103 PC Camera Controller detected "
+ "(vid/pid 0x%04X/0x%04X)", id->idVendor, id->idProduct);
+ break;
+ }
+
+ for (i = 0; sn9c102_sensor_table[i]; i++) {
+ err = sn9c102_sensor_table[i](cam);
+ if (!err)
+ break;
+ }
+
+ if (!err) {
+ DBG(2, "%s image sensor detected", cam->sensor.name);
+ DBG(3, "Support for %s maintained by %s",
+ cam->sensor.name, cam->sensor.maintainer);
+ } else {
+ DBG(1, "No supported image sensor detected");
+ err = -ENODEV;
+ goto fail;
+ }
+
+ if (sn9c102_init(cam)) {
+ DBG(1, "Initialization failed. I will retry on open().");
+ cam->state |= DEV_MISCONFIGURED;
+ }
+
+ strcpy(cam->v4ldev->name, "SN9C10x PC Camera");
+ cam->v4ldev->owner = THIS_MODULE;
+ cam->v4ldev->type = VID_TYPE_CAPTURE | VID_TYPE_SCALES;
+ cam->v4ldev->hardware = 0;
+ cam->v4ldev->fops = &sn9c102_fops;
+ cam->v4ldev->minor = video_nr[dev_nr];
+ cam->v4ldev->release = video_device_release;
+ video_set_drvdata(cam->v4ldev, cam);
+
+ mutex_lock(&cam->dev_mutex);
+
+ err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER,
+ video_nr[dev_nr]);
+ if (err) {
+ DBG(1, "V4L2 device registration failed");
+ if (err == -ENFILE && video_nr[dev_nr] == -1)
+ DBG(1, "Free /dev/videoX node not found");
+ video_nr[dev_nr] = -1;
+ dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0;
+ mutex_unlock(&cam->dev_mutex);
+ goto fail;
+ }
+
+ DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor);
+
+ cam->module_param.force_munmap = force_munmap[dev_nr];
+ cam->module_param.frame_timeout = frame_timeout[dev_nr];
+
+ dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0;
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ sn9c102_create_sysfs(cam);
+ DBG(2, "Optional device control through 'sysfs' interface ready");
+#endif
+
+ usb_set_intfdata(intf, cam);
+
+ mutex_unlock(&cam->dev_mutex);
+
+ return 0;
+
+fail:
+ if (cam) {
+ kfree(cam->control_buffer);
+ if (cam->v4ldev)
+ video_device_release(cam->v4ldev);
+ kfree(cam);
+ }
+ return err;
+}
+
+
+static void sn9c102_usb_disconnect(struct usb_interface* intf)
+{
+ struct sn9c102_device* cam = usb_get_intfdata(intf);
+
+ if (!cam)
+ return;
+
+ down_write(&sn9c102_disconnect);
+
+ mutex_lock(&cam->dev_mutex);
+
+ DBG(2, "Disconnecting %s...", cam->v4ldev->name);
+
+ wake_up_interruptible_all(&cam->open);
+
+ if (cam->users) {
+ DBG(2, "Device /dev/video%d is open! Deregistration and "
+ "memory deallocation are deferred on close.",
+ cam->v4ldev->minor);
+ cam->state |= DEV_MISCONFIGURED;
+ sn9c102_stop_transfer(cam);
+ cam->state |= DEV_DISCONNECTED;
+ wake_up_interruptible(&cam->wait_frame);
+ wake_up(&cam->wait_stream);
+ usb_get_dev(cam->usbdev);
+ } else {
+ cam->state |= DEV_DISCONNECTED;
+ sn9c102_release_resources(cam);
+ }
+
+ mutex_unlock(&cam->dev_mutex);
+
+ if (!cam->users)
+ kfree(cam);
+
+ up_write(&sn9c102_disconnect);
+}
+
+
+static struct usb_driver sn9c102_usb_driver = {
+ .name = "sn9c102",
+ .id_table = sn9c102_id_table,
+ .probe = sn9c102_usb_probe,
+ .disconnect = sn9c102_usb_disconnect,
+};
+
+/*****************************************************************************/
+
+static int __init sn9c102_module_init(void)
+{
+ int err = 0;
+
+ KDBG(2, SN9C102_MODULE_NAME " v" SN9C102_MODULE_VERSION);
+ KDBG(3, SN9C102_MODULE_AUTHOR);
+
+ if ((err = usb_register(&sn9c102_usb_driver)))
+ KDBG(1, "usb_register() failed");
+
+ return err;
+}
+
+
+static void __exit sn9c102_module_exit(void)
+{
+ usb_deregister(&sn9c102_usb_driver);
+}
+
+
+module_init(sn9c102_module_init);
+module_exit(sn9c102_module_exit);
diff --git a/drivers/media/video/sn9c102/sn9c102_hv7131d.c b/drivers/media/video/sn9c102/sn9c102_hv7131d.c
new file mode 100644
index 00000000000..c4117bf64b6
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_hv7131d.c
@@ -0,0 +1,271 @@
+/***************************************************************************
+ * Plug-in for HV7131D image sensor connected to the SN9C10x 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. *
+ ***************************************************************************/
+
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor hv7131d;
+
+
+static int hv7131d_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x00, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x00, 0x14);
+ err += sn9c102_write_reg(cam, 0x60, 0x17);
+ err += sn9c102_write_reg(cam, 0x0e, 0x18);
+ err += sn9c102_write_reg(cam, 0xf2, 0x19);
+
+ err += sn9c102_i2c_write(cam, 0x01, 0x04);
+ err += sn9c102_i2c_write(cam, 0x02, 0x00);
+ err += sn9c102_i2c_write(cam, 0x28, 0x00);
+
+ return err;
+}
+
+
+static int hv7131d_get_ctrl(struct sn9c102_device* cam,
+ struct v4l2_control* ctrl)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ {
+ int r1 = sn9c102_i2c_read(cam, 0x26),
+ r2 = sn9c102_i2c_read(cam, 0x27);
+ if (r1 < 0 || r2 < 0)
+ return -EIO;
+ ctrl->value = (r1 << 8) | (r2 & 0xff);
+ }
+ return 0;
+ case V4L2_CID_RED_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0)
+ return -EIO;
+ ctrl->value = 0x3f - (ctrl->value & 0x3f);
+ return 0;
+ case V4L2_CID_BLUE_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0)
+ return -EIO;
+ ctrl->value = 0x3f - (ctrl->value & 0x3f);
+ return 0;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0)
+ return -EIO;
+ ctrl->value = 0x3f - (ctrl->value & 0x3f);
+ return 0;
+ case SN9C102_V4L2_CID_RESET_LEVEL:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0)
+ return -EIO;
+ ctrl->value &= 0x3f;
+ return 0;
+ case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x34)) < 0)
+ return -EIO;
+ ctrl->value &= 0x07;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+
+static int hv7131d_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_write(cam, 0x26, ctrl->value >> 8);
+ err += sn9c102_i2c_write(cam, 0x27, ctrl->value & 0xff);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x31, 0x3f - ctrl->value);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x33, 0x3f - ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x32, 0x3f - ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_RESET_LEVEL:
+ err += sn9c102_i2c_write(cam, 0x30, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE:
+ err += sn9c102_i2c_write(cam, 0x34, ctrl->value);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err ? -EIO : 0;
+}
+
+
+static int hv7131d_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &hv7131d;
+ int err = 0;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 2,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ return err;
+}
+
+
+static int hv7131d_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x42, 0x19);
+ else
+ err += sn9c102_write_reg(cam, 0xf2, 0x19);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor hv7131d = {
+ .name = "HV7131D",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_2WIRES,
+ .i2c_slave_id = 0x11,
+ .init = &hv7131d_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x0250,
+ .maximum = 0xffff,
+ .step = 0x0001,
+ .default_value = 0x0250,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x20,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_GREEN_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "green balance",
+ .minimum = 0x00,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x1e,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_RESET_LEVEL,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "reset level",
+ .minimum = 0x19,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x30,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "pixel bias voltage",
+ .minimum = 0x00,
+ .maximum = 0x07,
+ .step = 0x01,
+ .default_value = 0x02,
+ .flags = 0,
+ },
+ },
+ .get_ctrl = &hv7131d_get_ctrl,
+ .set_ctrl = &hv7131d_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ },
+ .set_crop = &hv7131d_set_crop,
+ .pix_format = {
+ .width = 640,
+ .height = 480,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &hv7131d_set_pix_format
+};
+
+
+int sn9c102_probe_hv7131d(struct sn9c102_device* cam)
+{
+ int r0 = 0, r1 = 0, err = 0;
+
+ err += sn9c102_write_reg(cam, 0x01, 0x01);
+ err += sn9c102_write_reg(cam, 0x00, 0x01);
+ err += sn9c102_write_reg(cam, 0x28, 0x17);
+ if (err)
+ return -EIO;
+
+ r0 = sn9c102_i2c_try_read(cam, &hv7131d, 0x00);
+ r1 = sn9c102_i2c_try_read(cam, &hv7131d, 0x01);
+ if (r0 < 0 || r1 < 0)
+ return -EIO;
+
+ if (r0 != 0x00 && r1 != 0x04)
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &hv7131d);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_mi0343.c b/drivers/media/video/sn9c102/sn9c102_mi0343.c
new file mode 100644
index 00000000000..4169ea4a2e2
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_mi0343.c
@@ -0,0 +1,363 @@
+/***************************************************************************
+ * Plug-in for MI-0343 image sensor connected to the SN9C10x 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. *
+ ***************************************************************************/
+
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor mi0343;
+static u8 mi0343_i2c_data[5+1];
+
+
+static int mi0343_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x00, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x0a, 0x14);
+ err += sn9c102_write_reg(cam, 0x40, 0x01);
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+ err += sn9c102_write_reg(cam, 0x07, 0x18);
+ err += sn9c102_write_reg(cam, 0xa0, 0x19);
+
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x0d, 0x00, 0x01, 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x0d, 0x00, 0x00, 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x03, 0x01, 0xe1, 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x04, 0x02, 0x81, 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x05, 0x00, 0x17, 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x06, 0x00, 0x11, 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
+ 0x62, 0x04, 0x9a, 0, 0);
+
+ return err;
+}
+
+
+static int mi0343_get_ctrl(struct sn9c102_device* cam,
+ struct v4l2_control* ctrl)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x09, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ ctrl->value = mi0343_i2c_data[2];
+ return 0;
+ case V4L2_CID_GAIN:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x35, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ break;
+ case V4L2_CID_HFLIP:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x20, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ ctrl->value = mi0343_i2c_data[3] & 0x20 ? 1 : 0;
+ return 0;
+ case V4L2_CID_VFLIP:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x20, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ ctrl->value = mi0343_i2c_data[3] & 0x80 ? 1 : 0;
+ return 0;
+ case V4L2_CID_RED_BALANCE:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x2d, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x2c, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ break;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
+ 0x2e, 2+1, mi0343_i2c_data) < 0)
+ return -EIO;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ case V4L2_CID_RED_BALANCE:
+ case V4L2_CID_BLUE_BALANCE:
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ ctrl->value = mi0343_i2c_data[3] | (mi0343_i2c_data[2] << 8);
+ if (ctrl->value >= 0x10 && ctrl->value <= 0x3f)
+ ctrl->value -= 0x10;
+ else if (ctrl->value >= 0x60 && ctrl->value <= 0x7f)
+ ctrl->value -= 0x60;
+ else if (ctrl->value >= 0xe0 && ctrl->value <= 0xff)
+ ctrl->value -= 0xe0;
+ }
+
+ return 0;
+}
+
+
+static int mi0343_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ u16 reg = 0;
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ case V4L2_CID_RED_BALANCE:
+ case V4L2_CID_BLUE_BALANCE:
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ if (ctrl->value <= (0x3f-0x10))
+ reg = 0x10 + ctrl->value;
+ else if (ctrl->value <= ((0x3f-0x10) + (0x7f-0x60)))
+ reg = 0x60 + (ctrl->value - (0x3f-0x10));
+ else
+ reg = 0xe0 + (ctrl->value - (0x3f-0x10) - (0x7f-0x60));
+ break;
+ }
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x09, ctrl->value, 0x00,
+ 0, 0);
+ break;
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x35, reg >> 8, reg & 0xff,
+ 0, 0);
+ break;
+ case V4L2_CID_HFLIP:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x20, ctrl->value ? 0x40:0x00,
+ ctrl->value ? 0x20:0x00,
+ 0, 0);
+ break;
+ case V4L2_CID_VFLIP:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x20, ctrl->value ? 0x80:0x00,
+ ctrl->value ? 0x80:0x00,
+ 0, 0);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x2d, reg >> 8, reg & 0xff,
+ 0, 0);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x2c, reg >> 8, reg & 0xff,
+ 0, 0);
+ break;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x2b, reg >> 8, reg & 0xff,
+ 0, 0);
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x2e, reg >> 8, reg & 0xff,
+ 0, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err ? -EIO : 0;
+}
+
+
+static int mi0343_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &mi0343;
+ int err = 0;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ return err;
+}
+
+
+static int mi0343_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) {
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x0a, 0x00, 0x03, 0, 0);
+ err += sn9c102_write_reg(cam, 0x20, 0x19);
+ } else {
+ err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
+ mi0343.i2c_slave_id,
+ 0x0a, 0x00, 0x05, 0, 0);
+ err += sn9c102_write_reg(cam, 0xa0, 0x19);
+ }
+
+ return err;
+}
+
+
+static struct sn9c102_sensor mi0343 = {
+ .name = "MI-0343",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .frequency = SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_2WIRES,
+ .i2c_slave_id = 0x5d,
+ .init = &mi0343_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x06,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),/*0x6d*/
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_HFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "horizontal mirror",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "vertical mirror",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_GREEN_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "green balance",
+ .minimum = 0x00,
+ .maximum = ((0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0)),
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ },
+ .get_ctrl = &mi0343_get_ctrl,
+ .set_ctrl = &mi0343_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ },
+ .set_crop = &mi0343_set_crop,
+ .pix_format = {
+ .width = 640,
+ .height = 480,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &mi0343_set_pix_format
+};
+
+
+int sn9c102_probe_mi0343(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x01, 0x01);
+ err += sn9c102_write_reg(cam, 0x00, 0x01);
+ err += sn9c102_write_reg(cam, 0x28, 0x17);
+ if (err)
+ return -EIO;
+
+ if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00,
+ 2, mi0343_i2c_data) < 0)
+ return -EIO;
+
+ if (mi0343_i2c_data[4] != 0x32 && mi0343_i2c_data[3] != 0xe3)
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &mi0343);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_ov7630.c b/drivers/media/video/sn9c102/sn9c102_ov7630.c
new file mode 100644
index 00000000000..3da04202178
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_ov7630.c
@@ -0,0 +1,401 @@
+/***************************************************************************
+ * Plug-in for OV7630 image sensor connected to the SN9C10x PC Camera *
+ * Controllers *
+ * *
+ * Copyright (C) 2005-2006 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. *
+ ***************************************************************************/
+
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor ov7630;
+
+
+static int ov7630_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x00, 0x14);
+ err += sn9c102_write_reg(cam, 0x60, 0x17);
+ err += sn9c102_write_reg(cam, 0x0f, 0x18);
+ err += sn9c102_write_reg(cam, 0x50, 0x19);
+
+ err += sn9c102_i2c_write(cam, 0x12, 0x80);
+ err += sn9c102_i2c_write(cam, 0x11, 0x01);
+ err += sn9c102_i2c_write(cam, 0x15, 0x34);
+ err += sn9c102_i2c_write(cam, 0x16, 0x03);
+ err += sn9c102_i2c_write(cam, 0x17, 0x1c);
+ err += sn9c102_i2c_write(cam, 0x18, 0xbd);
+ err += sn9c102_i2c_write(cam, 0x19, 0x06);
+ err += sn9c102_i2c_write(cam, 0x1a, 0xf6);
+ err += sn9c102_i2c_write(cam, 0x1b, 0x04);
+ err += sn9c102_i2c_write(cam, 0x20, 0xf6);
+ err += sn9c102_i2c_write(cam, 0x23, 0xee);
+ err += sn9c102_i2c_write(cam, 0x26, 0xa0);
+ err += sn9c102_i2c_write(cam, 0x27, 0x9a);
+ err += sn9c102_i2c_write(cam, 0x28, 0xa0);
+ err += sn9c102_i2c_write(cam, 0x29, 0x30);
+ err += sn9c102_i2c_write(cam, 0x2a, 0xa0);
+ err += sn9c102_i2c_write(cam, 0x2b, 0x1f);
+ err += sn9c102_i2c_write(cam, 0x2f, 0x3d);
+ err += sn9c102_i2c_write(cam, 0x30, 0x24);
+ err += sn9c102_i2c_write(cam, 0x32, 0x86);
+ err += sn9c102_i2c_write(cam, 0x60, 0xa9);
+ err += sn9c102_i2c_write(cam, 0x61, 0x42);
+ err += sn9c102_i2c_write(cam, 0x65, 0x00);
+ err += sn9c102_i2c_write(cam, 0x69, 0x38);
+ err += sn9c102_i2c_write(cam, 0x6f, 0x88);
+ err += sn9c102_i2c_write(cam, 0x70, 0x0b);
+ err += sn9c102_i2c_write(cam, 0x71, 0x00);
+ err += sn9c102_i2c_write(cam, 0x74, 0x21);
+ err += sn9c102_i2c_write(cam, 0x7d, 0xf7);
+
+ return err;
+}
+
+
+static int ov7630_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_write(cam, 0x10, ctrl->value >> 2);
+ err += sn9c102_i2c_write(cam, 0x76, ctrl->value & 0x03);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x02, ctrl->value);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x01, ctrl->value);
+ break;
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_write(cam, 0x00, ctrl->value);
+ break;
+ case V4L2_CID_CONTRAST:
+ err += ctrl->value ? sn9c102_i2c_write(cam, 0x05,
+ (ctrl->value-1) | 0x20)
+ : sn9c102_i2c_write(cam, 0x05, 0x00);
+ break;
+ case V4L2_CID_BRIGHTNESS:
+ err += sn9c102_i2c_write(cam, 0x06, ctrl->value);
+ break;
+ case V4L2_CID_SATURATION:
+ err += sn9c102_i2c_write(cam, 0x03, ctrl->value << 4);
+ break;
+ case V4L2_CID_HUE:
+ err += ctrl->value ? sn9c102_i2c_write(cam, 0x04,
+ (ctrl->value-1) | 0x20)
+ : sn9c102_i2c_write(cam, 0x04, 0x00);
+ break;
+ case V4L2_CID_DO_WHITE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
+ break;
+ case V4L2_CID_WHITENESS:
+ err += sn9c102_i2c_write(cam, 0x0d, ctrl->value);
+ break;
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x12, (ctrl->value << 2) | 0x78);
+ break;
+ case V4L2_CID_AUTOGAIN:
+ err += sn9c102_i2c_write(cam, 0x13, ctrl->value);
+ break;
+ case V4L2_CID_VFLIP:
+ err += sn9c102_i2c_write(cam, 0x75, 0x0e | (ctrl->value << 7));
+ break;
+ case V4L2_CID_BLACK_LEVEL:
+ err += sn9c102_i2c_write(cam, 0x25, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_BRIGHT_LEVEL:
+ err += sn9c102_i2c_write(cam, 0x24, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_GAMMA:
+ err += sn9c102_i2c_write(cam, 0x14, (ctrl->value << 2) | 0x80);
+ break;
+ case SN9C102_V4L2_CID_BAND_FILTER:
+ err += sn9c102_i2c_write(cam, 0x2d, ctrl->value << 2);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err ? -EIO : 0;
+}
+
+
+static int ov7630_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &ov7630;
+ int err = 0;
+ u8 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
+
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ return err;
+}
+
+
+static int ov7630_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x20, 0x19);
+ else
+ err += sn9c102_write_reg(cam, 0x50, 0x19);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor ov7630 = {
+ .name = "OV7630",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .sysfs_ops = SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_2WIRES,
+ .i2c_slave_id = 0x21,
+ .init = &ov7630_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x14,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_HUE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "hue",
+ .minimum = 0x00,
+ .maximum = 0x1f+1,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "saturation",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x08,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_CONTRAST,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "contrast",
+ .minimum = 0x00,
+ .maximum = 0x1f+1,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x000,
+ .maximum = 0x3ff,
+ .step = 0x001,
+ .default_value = 0x83<<2,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x01,
+ .default_value = 0x3a,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x01,
+ .default_value = 0x77,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "brightness",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x01,
+ .default_value = 0xa0,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_DO_WHITE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "white balance background: blue",
+ .minimum = 0x00,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x20,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_WHITENESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "white balance background: red",
+ .minimum = 0x00,
+ .maximum = 0x3f,
+ .step = 0x01,
+ .default_value = 0x20,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_AUTO_WHITE_BALANCE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "auto white balance",
+ .minimum = 0x00,
+ .maximum = 0x01,
+ .step = 0x01,
+ .default_value = 0x01,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_AUTOGAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "gain & exposure mode",
+ .minimum = 0x00,
+ .maximum = 0x03,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "vertical flip",
+ .minimum = 0x00,
+ .maximum = 0x01,
+ .step = 0x01,
+ .default_value = 0x01,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLACK_LEVEL,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "black pixel ratio",
+ .minimum = 0x01,
+ .maximum = 0x9a,
+ .step = 0x01,
+ .default_value = 0x8a,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_BRIGHT_LEVEL,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "bright pixel ratio",
+ .minimum = 0x01,
+ .maximum = 0x9a,
+ .step = 0x01,
+ .default_value = 0x10,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_BAND_FILTER,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "band filter",
+ .minimum = 0x00,
+ .maximum = 0x01,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_GAMMA,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "rgb gamma",
+ .minimum = 0x00,
+ .maximum = 0x01,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ },
+ .set_ctrl = &ov7630_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ },
+ .set_crop = &ov7630_set_crop,
+ .pix_format = {
+ .width = 640,
+ .height = 480,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &ov7630_set_pix_format
+};
+
+
+int sn9c102_probe_ov7630(struct sn9c102_device* cam)
+{
+ const struct usb_device_id ov7630_id_table[] = {
+ { USB_DEVICE(0x0c45, 0x602c), },
+ { USB_DEVICE(0x0c45, 0x602d), },
+ { USB_DEVICE(0x0c45, 0x608f), },
+ { USB_DEVICE(0x0c45, 0x60b0), },
+ { }
+ };
+ int err = 0;
+
+ if (!sn9c102_match_id(cam, ov7630_id_table))
+ return -ENODEV;
+
+ err += sn9c102_write_reg(cam, 0x01, 0x01);
+ err += sn9c102_write_reg(cam, 0x00, 0x01);
+ err += sn9c102_write_reg(cam, 0x28, 0x17);
+ if (err)
+ return -EIO;
+
+ err += sn9c102_i2c_try_write(cam, &ov7630, 0x0b, 0);
+ if (err)
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &ov7630);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_pas106b.c b/drivers/media/video/sn9c102/sn9c102_pas106b.c
new file mode 100644
index 00000000000..9915944235e
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_pas106b.c
@@ -0,0 +1,307 @@
+/***************************************************************************
+ * Plug-in for PAS106B image sensor connected to the SN9C10x 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. *
+ ***************************************************************************/
+
+#include <linux/delay.h>
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor pas106b;
+
+
+static int pas106b_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x00, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x00, 0x14);
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+ err += sn9c102_write_reg(cam, 0x20, 0x19);
+ err += sn9c102_write_reg(cam, 0x09, 0x18);
+
+ err += sn9c102_i2c_write(cam, 0x02, 0x0c);
+ err += sn9c102_i2c_write(cam, 0x05, 0x5a);
+ err += sn9c102_i2c_write(cam, 0x06, 0x88);
+ err += sn9c102_i2c_write(cam, 0x07, 0x80);
+ err += sn9c102_i2c_write(cam, 0x10, 0x06);
+ err += sn9c102_i2c_write(cam, 0x11, 0x06);
+ err += sn9c102_i2c_write(cam, 0x12, 0x00);
+ err += sn9c102_i2c_write(cam, 0x14, 0x02);
+ err += sn9c102_i2c_write(cam, 0x13, 0x01);
+
+ msleep(400);
+
+ return err;
+}
+
+
+static int pas106b_get_ctrl(struct sn9c102_device* cam,
+ struct v4l2_control* ctrl)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ {
+ int r1 = sn9c102_i2c_read(cam, 0x03),
+ r2 = sn9c102_i2c_read(cam, 0x04);
+ if (r1 < 0 || r2 < 0)
+ return -EIO;
+ ctrl->value = (r1 << 4) | (r2 & 0x0f);
+ }
+ return 0;
+ case V4L2_CID_RED_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x0c)) < 0)
+ return -EIO;
+ ctrl->value &= 0x1f;
+ return 0;
+ case V4L2_CID_BLUE_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x09)) < 0)
+ return -EIO;
+ ctrl->value &= 0x1f;
+ return 0;
+ case V4L2_CID_GAIN:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x0e)) < 0)
+ return -EIO;
+ ctrl->value &= 0x1f;
+ return 0;
+ case V4L2_CID_CONTRAST:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x0f)) < 0)
+ return -EIO;
+ ctrl->value &= 0x07;
+ return 0;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x0a)) < 0)
+ return -EIO;
+ ctrl->value = (ctrl->value & 0x1f) << 1;
+ return 0;
+ case SN9C102_V4L2_CID_DAC_MAGNITUDE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x08)) < 0)
+ return -EIO;
+ ctrl->value &= 0xf8;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+
+static int pas106b_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_write(cam, 0x03, ctrl->value >> 4);
+ err += sn9c102_i2c_write(cam, 0x04, ctrl->value & 0x0f);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x09, ctrl->value);
+ break;
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_write(cam, 0x0e, ctrl->value);
+ break;
+ case V4L2_CID_CONTRAST:
+ err += sn9c102_i2c_write(cam, 0x0f, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x0a, ctrl->value >> 1);
+ err += sn9c102_i2c_write(cam, 0x0b, ctrl->value >> 1);
+ break;
+ case SN9C102_V4L2_CID_DAC_MAGNITUDE:
+ err += sn9c102_i2c_write(cam, 0x08, ctrl->value << 3);
+ break;
+ default:
+ return -EINVAL;
+ }
+ err += sn9c102_i2c_write(cam, 0x13, 0x01);
+
+ return err ? -EIO : 0;
+}
+
+
+static int pas106b_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &pas106b;
+ int err = 0;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 4,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 3;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ return err;
+}
+
+
+static int pas106b_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x2c, 0x17);
+ else
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor pas106b = {
+ .name = "PAS106B",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_2WIRES,
+ .i2c_slave_id = 0x40,
+ .init = &pas106b_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x125,
+ .maximum = 0xfff,
+ .step = 0x001,
+ .default_value = 0x140,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = 0x1f,
+ .step = 0x01,
+ .default_value = 0x0d,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_CONTRAST,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "contrast",
+ .minimum = 0x00,
+ .maximum = 0x07,
+ .step = 0x01,
+ .default_value = 0x00, /* 0x00~0x03 have same effect */
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = 0x1f,
+ .step = 0x01,
+ .default_value = 0x04,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = 0x1f,
+ .step = 0x01,
+ .default_value = 0x06,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_GREEN_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "green balance",
+ .minimum = 0x00,
+ .maximum = 0x3e,
+ .step = 0x02,
+ .default_value = 0x02,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_DAC_MAGNITUDE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "DAC magnitude",
+ .minimum = 0x00,
+ .maximum = 0x1f,
+ .step = 0x01,
+ .default_value = 0x01,
+ .flags = 0,
+ },
+ },
+ .get_ctrl = &pas106b_get_ctrl,
+ .set_ctrl = &pas106b_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 352,
+ .height = 288,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 352,
+ .height = 288,
+ },
+ },
+ .set_crop = &pas106b_set_crop,
+ .pix_format = {
+ .width = 352,
+ .height = 288,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8, /* we use this field as 'bits per pixel' */
+ },
+ .set_pix_format = &pas106b_set_pix_format
+};
+
+
+int sn9c102_probe_pas106b(struct sn9c102_device* cam)
+{
+ int r0 = 0, r1 = 0, err = 0;
+ unsigned int pid = 0;
+
+ /*
+ Minimal initialization to enable the I2C communication
+ NOTE: do NOT change the values!
+ */
+ err += sn9c102_write_reg(cam, 0x01, 0x01); /* sensor power down */
+ err += sn9c102_write_reg(cam, 0x00, 0x01); /* sensor power on */
+ err += sn9c102_write_reg(cam, 0x28, 0x17); /* sensor clock at 24 MHz */
+ if (err)
+ return -EIO;
+
+ r0 = sn9c102_i2c_try_read(cam, &pas106b, 0x00);
+ r1 = sn9c102_i2c_try_read(cam, &pas106b, 0x01);
+
+ if (r0 < 0 || r1 < 0)
+ return -EIO;
+
+ pid = (r0 << 11) | ((r1 & 0xf0) >> 4);
+ if (pid != 0x007)
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &pas106b);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_pas202bca.c b/drivers/media/video/sn9c102/sn9c102_pas202bca.c
new file mode 100644
index 00000000000..c8f1ae2152b
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_pas202bca.c
@@ -0,0 +1,238 @@
+/***************************************************************************
+ * Plug-in for PAS202BCA image sensor connected to the SN9C10x PC Camera *
+ * Controllers *
+ * *
+ * Copyright (C) 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. *
+ ***************************************************************************/
+
+#include <linux/delay.h>
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor pas202bca;
+
+
+static int pas202bca_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x00, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x00, 0x14);
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+ err += sn9c102_write_reg(cam, 0x30, 0x19);
+ err += sn9c102_write_reg(cam, 0x09, 0x18);
+
+ err += sn9c102_i2c_write(cam, 0x02, 0x14);
+ err += sn9c102_i2c_write(cam, 0x03, 0x40);
+ err += sn9c102_i2c_write(cam, 0x0d, 0x2c);
+ err += sn9c102_i2c_write(cam, 0x0e, 0x01);
+ err += sn9c102_i2c_write(cam, 0x0f, 0xa9);
+ err += sn9c102_i2c_write(cam, 0x10, 0x08);
+ err += sn9c102_i2c_write(cam, 0x13, 0x63);
+ err += sn9c102_i2c_write(cam, 0x15, 0x70);
+ err += sn9c102_i2c_write(cam, 0x11, 0x01);
+
+ msleep(400);
+
+ return err;
+}
+
+
+static int pas202bca_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x24, 0x17);
+ else
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+
+ return err;
+}
+
+
+static int pas202bca_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_write(cam, 0x04, ctrl->value >> 6);
+ err += sn9c102_i2c_write(cam, 0x05, ctrl->value & 0x3f);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x09, ctrl->value);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x07, ctrl->value);
+ break;
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_write(cam, 0x10, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x08, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_DAC_MAGNITUDE:
+ err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
+ break;
+ default:
+ return -EINVAL;
+ }
+ err += sn9c102_i2c_write(cam, 0x11, 0x01);
+
+ return err ? -EIO : 0;
+}
+
+
+static int pas202bca_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &pas202bca;
+ int err = 0;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 3,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 3;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor pas202bca = {
+ .name = "PAS202BCA",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_2WIRES,
+ .i2c_slave_id = 0x40,
+ .init = &pas202bca_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x01e5,
+ .maximum = 0x3fff,
+ .step = 0x0001,
+ .default_value = 0x01e5,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = 0x1f,
+ .step = 0x01,
+ .default_value = 0x0c,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x01,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x05,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_GREEN_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "green balance",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_DAC_MAGNITUDE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "DAC magnitude",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x01,
+ .default_value = 0x04,
+ .flags = 0,
+ },
+ },
+ .set_ctrl = &pas202bca_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ },
+ .set_crop = &pas202bca_set_crop,
+ .pix_format = {
+ .width = 640,
+ .height = 480,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &pas202bca_set_pix_format
+};
+
+
+int sn9c102_probe_pas202bca(struct sn9c102_device* cam)
+{
+ const struct usb_device_id pas202bca_id_table[] = {
+ { USB_DEVICE(0x0c45, 0x60af), },
+ { }
+ };
+ int err = 0;
+
+ if (!sn9c102_match_id(cam,pas202bca_id_table))
+ return -ENODEV;
+
+ err += sn9c102_write_reg(cam, 0x01, 0x01);
+ err += sn9c102_write_reg(cam, 0x40, 0x01);
+ err += sn9c102_write_reg(cam, 0x28, 0x17);
+ if (err)
+ return -EIO;
+
+ if (sn9c102_i2c_try_write(cam, &pas202bca, 0x10, 0)) /* try to write */
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &pas202bca);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_pas202bcb.c b/drivers/media/video/sn9c102/sn9c102_pas202bcb.c
new file mode 100644
index 00000000000..e3c1178e339
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_pas202bcb.c
@@ -0,0 +1,293 @@
+/***************************************************************************
+ * Plug-in for PAS202BCB image sensor connected to the SN9C10x PC Camera *
+ * Controllers *
+ * *
+ * Copyright (C) 2004 by Carlos Eduardo Medaglia Dyonisio *
+ * <medaglia@undl.org.br> *
+ * http://cadu.homelinux.com:8080/ *
+ * *
+ * DAC Magnitude, exposure and green gain controls added 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. *
+ ***************************************************************************/
+
+#include <linux/delay.h>
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor pas202bcb;
+
+
+static int pas202bcb_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x00, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x00, 0x14);
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+ err += sn9c102_write_reg(cam, 0x30, 0x19);
+ err += sn9c102_write_reg(cam, 0x09, 0x18);
+
+ err += sn9c102_i2c_write(cam, 0x02, 0x14);
+ err += sn9c102_i2c_write(cam, 0x03, 0x40);
+ err += sn9c102_i2c_write(cam, 0x0d, 0x2c);
+ err += sn9c102_i2c_write(cam, 0x0e, 0x01);
+ err += sn9c102_i2c_write(cam, 0x0f, 0xa9);
+ err += sn9c102_i2c_write(cam, 0x10, 0x08);
+ err += sn9c102_i2c_write(cam, 0x13, 0x63);
+ err += sn9c102_i2c_write(cam, 0x15, 0x70);
+ err += sn9c102_i2c_write(cam, 0x11, 0x01);
+
+ msleep(400);
+
+ return err;
+}
+
+
+static int pas202bcb_get_ctrl(struct sn9c102_device* cam,
+ struct v4l2_control* ctrl)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ {
+ int r1 = sn9c102_i2c_read(cam, 0x04),
+ r2 = sn9c102_i2c_read(cam, 0x05);
+ if (r1 < 0 || r2 < 0)
+ return -EIO;
+ ctrl->value = (r1 << 6) | (r2 & 0x3f);
+ }
+ return 0;
+ case V4L2_CID_RED_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x09)) < 0)
+ return -EIO;
+ ctrl->value &= 0x0f;
+ return 0;
+ case V4L2_CID_BLUE_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x07)) < 0)
+ return -EIO;
+ ctrl->value &= 0x0f;
+ return 0;
+ case V4L2_CID_GAIN:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x10)) < 0)
+ return -EIO;
+ ctrl->value &= 0x1f;
+ return 0;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x08)) < 0)
+ return -EIO;
+ ctrl->value &= 0x0f;
+ return 0;
+ case SN9C102_V4L2_CID_DAC_MAGNITUDE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x0c)) < 0)
+ return -EIO;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+
+static int pas202bcb_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x24, 0x17);
+ else
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+
+ return err;
+}
+
+
+static int pas202bcb_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_write(cam, 0x04, ctrl->value >> 6);
+ err += sn9c102_i2c_write(cam, 0x05, ctrl->value & 0x3f);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x09, ctrl->value);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x07, ctrl->value);
+ break;
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_write(cam, 0x10, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ err += sn9c102_i2c_write(cam, 0x08, ctrl->value);
+ break;
+ case SN9C102_V4L2_CID_DAC_MAGNITUDE:
+ err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
+ break;
+ default:
+ return -EINVAL;
+ }
+ err += sn9c102_i2c_write(cam, 0x11, 0x01);
+
+ return err ? -EIO : 0;
+}
+
+
+static int pas202bcb_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &pas202bcb;
+ int err = 0;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 4,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 3;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor pas202bcb = {
+ .name = "PAS202BCB",
+ .maintainer = "Carlos Eduardo Medaglia Dyonisio "
+ "<medaglia@undl.org.br>",
+ .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_2WIRES,
+ .i2c_slave_id = 0x40,
+ .init = &pas202bcb_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x01e5,
+ .maximum = 0x3fff,
+ .step = 0x0001,
+ .default_value = 0x01e5,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = 0x1f,
+ .step = 0x01,
+ .default_value = 0x0c,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x01,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x05,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_GREEN_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "green balance",
+ .minimum = 0x00,
+ .maximum = 0x0f,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = SN9C102_V4L2_CID_DAC_MAGNITUDE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "DAC magnitude",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x01,
+ .default_value = 0x04,
+ .flags = 0,
+ },
+ },
+ .get_ctrl = &pas202bcb_get_ctrl,
+ .set_ctrl = &pas202bcb_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ },
+ .set_crop = &pas202bcb_set_crop,
+ .pix_format = {
+ .width = 640,
+ .height = 480,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &pas202bcb_set_pix_format
+};
+
+
+int sn9c102_probe_pas202bcb(struct sn9c102_device* cam)
+{
+ int r0 = 0, r1 = 0, err = 0;
+ unsigned int pid = 0;
+
+ /*
+ * Minimal initialization to enable the I2C communication
+ * NOTE: do NOT change the values!
+ */
+ err += sn9c102_write_reg(cam, 0x01, 0x01); /* sensor power down */
+ err += sn9c102_write_reg(cam, 0x40, 0x01); /* sensor power on */
+ err += sn9c102_write_reg(cam, 0x28, 0x17); /* sensor clock at 24 MHz */
+ if (err)
+ return -EIO;
+
+ r0 = sn9c102_i2c_try_read(cam, &pas202bcb, 0x00);
+ r1 = sn9c102_i2c_try_read(cam, &pas202bcb, 0x01);
+
+ if (r0 < 0 || r1 < 0)
+ return -EIO;
+
+ pid = (r0 << 4) | ((r1 & 0xf0) >> 4);
+ if (pid != 0x017)
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &pas202bcb);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_sensor.h b/drivers/media/video/sn9c102/sn9c102_sensor.h
new file mode 100644
index 00000000000..2a874ee6f9f
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_sensor.h
@@ -0,0 +1,389 @@
+/***************************************************************************
+ * API for image sensors connected to the SN9C10x 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_SENSOR_H_
+#define _SN9C102_SENSOR_H_
+
+#include <linux/usb.h>
+#include <linux/videodev.h>
+#include <linux/device.h>
+#include <linux/stddef.h>
+#include <linux/errno.h>
+#include <asm/types.h>
+
+struct sn9c102_device;
+struct sn9c102_sensor;
+
+/*****************************************************************************/
+
+/*
+ OVERVIEW.
+ This is a small interface that allows you to add support for any CCD/CMOS
+ image sensors connected to the SN9C10X bridges. The entire API is documented
+ below. In the most general case, to support a sensor there are three steps
+ you have to follow:
+ 1) define the main "sn9c102_sensor" structure by setting the basic fields;
+ 2) write a probing function to be called by the core module when the USB
+ camera is recognized, then add both the USB ids and the name of that
+ function to the two corresponding tables SENSOR_TABLE and ID_TABLE (see
+ below);
+ 3) implement the methods that you want/need (and fill the rest of the main
+ structure accordingly).
+ "sn9c102_pas106b.c" is an example of all this stuff. Remember that you do
+ NOT need to touch the source code of the core module for the things to work
+ properly, unless you find bugs or flaws in it. Finally, do not forget to
+ read the V4L2 API for completeness.
+*/
+
+/*****************************************************************************/
+
+/*
+ Probing functions: on success, you must attach the sensor to the camera
+ by calling sn9c102_attach_sensor() provided below.
+ To enable the I2C communication, you might need to perform a really basic
+ initialization of the SN9C10X chip by using the write function declared
+ ahead.
+ Functions must return 0 on success, the appropriate error otherwise.
+*/
+extern int sn9c102_probe_hv7131d(struct sn9c102_device* cam);
+extern int sn9c102_probe_mi0343(struct sn9c102_device* cam);
+extern int sn9c102_probe_ov7630(struct sn9c102_device* cam);
+extern int sn9c102_probe_pas106b(struct sn9c102_device* cam);
+extern int sn9c102_probe_pas202bca(struct sn9c102_device* cam);
+extern int sn9c102_probe_pas202bcb(struct sn9c102_device* cam);
+extern int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam);
+extern int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam);
+
+/*
+ Add the above entries to this table. Be sure to add the entry in the right
+ place, since, on failure, the next probing routine is called according to
+ the order of the list below, from top to bottom.
+*/
+#define SN9C102_SENSOR_TABLE \
+static int (*sn9c102_sensor_table[])(struct sn9c102_device*) = { \
+ &sn9c102_probe_mi0343, /* strong detection based on SENSOR ids */ \
+ &sn9c102_probe_pas106b, /* strong detection based on SENSOR ids */ \
+ &sn9c102_probe_pas202bcb, /* strong detection based on SENSOR ids */ \
+ &sn9c102_probe_hv7131d, /* strong detection based on SENSOR ids */ \
+ &sn9c102_probe_pas202bca, /* detection mostly based on USB pid/vid */ \
+ &sn9c102_probe_ov7630, /* detection mostly based on USB pid/vid */ \
+ &sn9c102_probe_tas5110c1b, /* detection based on USB pid/vid */ \
+ &sn9c102_probe_tas5130d1b, /* detection based on USB pid/vid */ \
+ NULL, \
+};
+
+/* Device identification */
+extern struct sn9c102_device*
+sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id);
+
+/* Attach a probed sensor to the camera. */
+extern void
+sn9c102_attach_sensor(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor);
+
+/*
+ Each SN9C10x camera has proper PID/VID identifiers.
+ SN9C103 supports multiple interfaces, but we only handle the video class
+ interface.
+*/
+#define SN9C102_USB_DEVICE(vend, prod, intclass) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_INT_CLASS, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bInterfaceClass = (intclass)
+
+#define SN9C102_ID_TABLE \
+static const struct usb_device_id sn9c102_id_table[] = { \
+ { USB_DEVICE(0x0c45, 0x6001), }, /* TAS5110C1B */ \
+ { USB_DEVICE(0x0c45, 0x6005), }, /* TAS5110C1B */ \
+ { USB_DEVICE(0x0c45, 0x6007), }, \
+ { USB_DEVICE(0x0c45, 0x6009), }, /* PAS106B */ \
+ { USB_DEVICE(0x0c45, 0x600d), }, /* PAS106B */ \
+ { USB_DEVICE(0x0c45, 0x6024), }, \
+ { USB_DEVICE(0x0c45, 0x6025), }, /* TAS5130D1B and TAS5110C1B */ \
+ { USB_DEVICE(0x0c45, 0x6028), }, /* PAS202BCB */ \
+ { USB_DEVICE(0x0c45, 0x6029), }, /* PAS106B */ \
+ { USB_DEVICE(0x0c45, 0x602a), }, /* HV7131D */ \
+ { USB_DEVICE(0x0c45, 0x602b), }, /* MI-0343 */ \
+ { USB_DEVICE(0x0c45, 0x602c), }, /* OV7630 */ \
+ { USB_DEVICE(0x0c45, 0x602d), }, \
+ { USB_DEVICE(0x0c45, 0x602e), }, /* OV7630 */ \
+ { USB_DEVICE(0x0c45, 0x6030), }, /* MI03x */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x6080, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x6082, 0xff), }, /* MI0343 & MI0360 */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x6083, 0xff), }, /* HV7131[D|E1] */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x6088, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x608a, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x608b, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x608c, 0xff), }, /* HV7131/R */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x608e, 0xff), }, /* CIS-VF10 */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x608f, 0xff), }, /* OV7630 */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60a0, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60a2, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60a3, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60a8, 0xff), }, /* PAS106B */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60aa, 0xff), }, /* TAS5130D1B */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60ab, 0xff), }, /* TAS5110C1B */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60ac, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60ae, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60af, 0xff), }, /* PAS202BCB */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60b0, 0xff), }, /* OV7630 (?) */ \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60b2, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60b3, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60b8, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60ba, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60bb, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60bc, 0xff), }, \
+ { SN9C102_USB_DEVICE(0x0c45, 0x60be, 0xff), }, \
+ { } \
+};
+
+/*****************************************************************************/
+
+/*
+ Read/write routines: they always return -1 on error, 0 or the read value
+ otherwise. NOTE that a real read operation is not supported by the SN9C10X
+ chip for some of its registers. To work around this problem, a pseudo-read
+ call is provided instead: it returns the last successfully written value
+ on the register (0 if it has never been written), the usual -1 on error.
+*/
+
+/* The "try" I2C I/O versions are used when probing the sensor */
+extern int sn9c102_i2c_try_write(struct sn9c102_device*,struct sn9c102_sensor*,
+ u8 address, u8 value);
+extern int sn9c102_i2c_try_read(struct sn9c102_device*,struct sn9c102_sensor*,
+ u8 address);
+
+/*
+ These must be used if and only if the sensor doesn't implement the standard
+ I2C protocol. There are a number of good reasons why you must use the
+ single-byte versions of these functions: do not abuse. The first function
+ writes n bytes, from data0 to datan, to registers 0x09 - 0x09+n of SN9C10X
+ chip. The second one programs the registers 0x09 and 0x10 with data0 and
+ data1, and places the n bytes read from the sensor register table in the
+ buffer pointed by 'buffer'. Both the functions return -1 on error; the write
+ version returns 0 on success, while the read version returns the first read
+ byte.
+*/
+extern int sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor, u8 n,
+ u8 data0, u8 data1, u8 data2, u8 data3,
+ u8 data4, u8 data5);
+extern int sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
+ struct sn9c102_sensor* sensor, u8 data0,
+ u8 data1, u8 n, u8 buffer[]);
+
+/* To be used after the sensor struct has been attached to the camera struct */
+extern int sn9c102_i2c_write(struct sn9c102_device*, u8 address, u8 value);
+extern int sn9c102_i2c_read(struct sn9c102_device*, u8 address);
+
+/* I/O on registers in the bridge. Could be used by the sensor methods too */
+extern int sn9c102_write_regs(struct sn9c102_device*, u8* buff, u16 index);
+extern int sn9c102_write_reg(struct sn9c102_device*, u8 value, u16 index);
+extern int sn9c102_pread_reg(struct sn9c102_device*, u16 index);
+
+/*
+ NOTE: there are no exported debugging functions. To uniform the output you
+ must use the dev_info()/dev_warn()/dev_err() macros defined in device.h,
+ already included here, the argument being the struct device '&usbdev->dev'
+ of the sensor structure. Do NOT use these macros before the sensor is
+ attached or the kernel will crash! However, you should not need to notify
+ the user about common errors or other messages, since this is done by the
+ master module.
+*/
+
+/*****************************************************************************/
+
+enum sn9c102_i2c_sysfs_ops {
+ SN9C102_I2C_READ = 0x01,
+ SN9C102_I2C_WRITE = 0x02,
+};
+
+enum sn9c102_i2c_frequency { /* sensors may support both the frequencies */
+ SN9C102_I2C_100KHZ = 0x01,
+ SN9C102_I2C_400KHZ = 0x02,
+};
+
+enum sn9c102_i2c_interface {
+ SN9C102_I2C_2WIRES,
+ SN9C102_I2C_3WIRES,
+};
+
+#define SN9C102_MAX_CTRLS V4L2_CID_LASTP1-V4L2_CID_BASE+10
+
+struct sn9c102_sensor {
+ char name[32], /* sensor name */
+ maintainer[64]; /* name of the mantainer <email> */
+
+ /* Supported operations through the 'sysfs' interface */
+ enum sn9c102_i2c_sysfs_ops sysfs_ops;
+
+ /*
+ These sensor capabilities must be provided if the SN9C10X controller
+ needs to communicate through the sensor serial interface by using
+ at least one of the i2c functions available.
+ */
+ enum sn9c102_i2c_frequency frequency;
+ enum sn9c102_i2c_interface interface;
+
+ /*
+ This identifier must be provided if the image sensor implements
+ the standard I2C protocol.
+ */
+ u8 i2c_slave_id; /* reg. 0x09 */
+
+ /*
+ NOTE: Where not noted,most of the functions below are not mandatory.
+ Set to null if you do not implement them. If implemented,
+ they must return 0 on success, the proper error otherwise.
+ */
+
+ int (*init)(struct sn9c102_device* cam);
+ /*
+ This function will be called after the sensor has been attached.
+ It should be used to initialize the sensor only, but may also
+ configure part of the SN9C10X chip if necessary. You don't need to
+ setup picture settings like brightness, contrast, etc.. here, if
+ the corrisponding controls are implemented (see below), since
+ they are adjusted in the core driver by calling the set_ctrl()
+ method after init(), where the arguments are the default values
+ specified in the v4l2_queryctrl list of supported controls;
+ Same suggestions apply for other settings, _if_ the corresponding
+ methods are present; if not, the initialization must configure the
+ sensor according to the default configuration structures below.
+ */
+
+ struct v4l2_queryctrl qctrl[SN9C102_MAX_CTRLS];
+ /*
+ Optional list of default controls, defined as indicated in the
+ V4L2 API. Menu type controls are not handled by this interface.
+ */
+
+ int (*get_ctrl)(struct sn9c102_device* cam, struct v4l2_control* ctrl);
+ int (*set_ctrl)(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl);
+ /*
+ You must implement at least the set_ctrl method if you have defined
+ the list above. The returned value must follow the V4L2
+ specifications for the VIDIOC_G|C_CTRL ioctls. V4L2_CID_H|VCENTER
+ are not supported by this driver, so do not implement them. Also,
+ you don't have to check whether the passed values are out of bounds,
+ given that this is done by the core module.
+ */
+
+ struct v4l2_cropcap cropcap;
+ /*
+ Think the image sensor as a grid of R,G,B monochromatic pixels
+ disposed according to a particular Bayer pattern, which describes
+ the complete array of pixels, from (0,0) to (xmax, ymax). We will
+ use this coordinate system from now on. It is assumed the sensor
+ chip can be programmed to capture/transmit a subsection of that
+ array of pixels: we will call this subsection "active window".
+ It is not always true that the largest achievable active window can
+ cover the whole array of pixels. The V4L2 API defines another
+ area called "source rectangle", which, in turn, is a subrectangle of
+ the active window. The SN9C10X chip is always programmed to read the
+ source rectangle.
+ The bounds of both the active window and the source rectangle are
+ specified in the cropcap substructures 'bounds' and 'defrect'.
+ By default, the source rectangle should cover the largest possible
+ area. Again, it is not always true that the largest source rectangle
+ can cover the entire active window, although it is a rare case for
+ the hardware we have. The bounds of the source rectangle _must_ be
+ multiple of 16 and must use the same coordinate system as indicated
+ before; their centers shall align initially.
+ If necessary, the sensor chip must be initialized during init() to
+ set the bounds of the active sensor window; however, by default, it
+ usually covers the largest achievable area (maxwidth x maxheight)
+ of pixels, so no particular initialization is needed, if you have
+ defined the correct default bounds in the structures.
+ See the V4L2 API for further details.
+ NOTE: once you have defined the bounds of the active window
+ (struct cropcap.bounds) you must not change them.anymore.
+ Only 'bounds' and 'defrect' fields are mandatory, other fields
+ will be ignored.
+ */
+
+ int (*set_crop)(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect);
+ /*
+ To be called on VIDIOC_C_SETCROP. The core module always calls a
+ default routine which configures the appropriate SN9C10X regs (also
+ scaling), but you may need to override/adjust specific stuff.
+ 'rect' contains width and height values that are multiple of 16: in
+ case you override the default function, you always have to program
+ the chip to match those values; on error return the corresponding
+ error code without rolling back.
+ NOTE: in case, you must program the SN9C10X chip to get rid of
+ blank pixels or blank lines at the _start_ of each line or
+ frame after each HSYNC or VSYNC, so that the image starts with
+ real RGB data (see regs 0x12, 0x13) (having set H_SIZE and,
+ V_SIZE you don't have to care about blank pixels or blank
+ lines at the end of each line or frame).
+ */
+
+ struct v4l2_pix_format pix_format;
+ /*
+ What you have to define here are: 1) initial 'width' and 'height' of
+ the target rectangle 2) the initial 'pixelformat', which can be
+ either V4L2_PIX_FMT_SN9C10X (for compressed video) or
+ V4L2_PIX_FMT_SBGGR8 3) 'priv', which we'll be used to indicate the
+ number of bits per pixel for uncompressed video, 8 or 9 (despite the
+ current value of 'pixelformat').
+ NOTE 1: both 'width' and 'height' _must_ be either 1/1 or 1/2 or 1/4
+ of cropcap.defrect.width and cropcap.defrect.height. I
+ suggest 1/1.
+ NOTE 2: The initial compression quality is defined by the first bit
+ of reg 0x17 during the initialization of the image sensor.
+ NOTE 3: as said above, you have to program the SN9C10X chip to get
+ rid of any blank pixels, so that the output of the sensor
+ matches the RGB bayer sequence (i.e. BGBGBG...GRGRGR).
+ */
+
+ int (*set_pix_format)(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix);
+ /*
+ To be called on VIDIOC_S_FMT, when switching from the SBGGR8 to
+ SN9C10X pixel format or viceversa. On error return the corresponding
+ error code without rolling back.
+ */
+
+ /*
+ Do NOT write to the data below, it's READ ONLY. It is used by the
+ core module to store successfully updated values of the above
+ settings, for rollbacks..etc..in case of errors during atomic I/O
+ */
+ struct v4l2_queryctrl _qctrl[SN9C102_MAX_CTRLS];
+ struct v4l2_rect _rect;
+};
+
+/*****************************************************************************/
+
+/* Private ioctl's for control settings supported by some image sensors */
+#define SN9C102_V4L2_CID_DAC_MAGNITUDE V4L2_CID_PRIVATE_BASE
+#define SN9C102_V4L2_CID_GREEN_BALANCE V4L2_CID_PRIVATE_BASE + 1
+#define SN9C102_V4L2_CID_RESET_LEVEL V4L2_CID_PRIVATE_BASE + 2
+#define SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE V4L2_CID_PRIVATE_BASE + 3
+#define SN9C102_V4L2_CID_GAMMA V4L2_CID_PRIVATE_BASE + 4
+#define SN9C102_V4L2_CID_BAND_FILTER V4L2_CID_PRIVATE_BASE + 5
+#define SN9C102_V4L2_CID_BRIGHT_LEVEL V4L2_CID_PRIVATE_BASE + 6
+
+#endif /* _SN9C102_SENSOR_H_ */
diff --git a/drivers/media/video/sn9c102/sn9c102_tas5110c1b.c b/drivers/media/video/sn9c102/sn9c102_tas5110c1b.c
new file mode 100644
index 00000000000..294eb02fbd8
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_tas5110c1b.c
@@ -0,0 +1,159 @@
+/***************************************************************************
+ * Plug-in for TAS5110C1B image sensor connected to the SN9C10x 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. *
+ ***************************************************************************/
+
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor tas5110c1b;
+
+
+static int tas5110c1b_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x01, 0x01);
+ err += sn9c102_write_reg(cam, 0x44, 0x01);
+ err += sn9c102_write_reg(cam, 0x00, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x0a, 0x14);
+ err += sn9c102_write_reg(cam, 0x60, 0x17);
+ err += sn9c102_write_reg(cam, 0x06, 0x18);
+ err += sn9c102_write_reg(cam, 0xfb, 0x19);
+
+ err += sn9c102_i2c_write(cam, 0xc0, 0x80);
+
+ return err;
+}
+
+
+static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err ? -EIO : 0;
+}
+
+
+static int tas5110c1b_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &tas5110c1b;
+ int err = 0;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ /* Don't change ! */
+ err += sn9c102_write_reg(cam, 0x14, 0x1a);
+ err += sn9c102_write_reg(cam, 0x0a, 0x1b);
+ err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
+
+ return err;
+}
+
+
+static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x2b, 0x19);
+ else
+ err += sn9c102_write_reg(cam, 0xfb, 0x19);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor tas5110c1b = {
+ .name = "TAS5110C1B",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .sysfs_ops = SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_3WIRES,
+ .init = &tas5110c1b_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = 0xf6,
+ .step = 0x01,
+ .default_value = 0x40,
+ .flags = 0,
+ },
+ },
+ .set_ctrl = &tas5110c1b_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 352,
+ .height = 288,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 352,
+ .height = 288,
+ },
+ },
+ .set_crop = &tas5110c1b_set_crop,
+ .pix_format = {
+ .width = 352,
+ .height = 288,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &tas5110c1b_set_pix_format
+};
+
+
+int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
+{
+ const struct usb_device_id tas5110c1b_id_table[] = {
+ { USB_DEVICE(0x0c45, 0x6001), },
+ { USB_DEVICE(0x0c45, 0x6005), },
+ { USB_DEVICE(0x0c45, 0x60ab), },
+ { }
+ };
+
+ /* Sensor detection is based on USB pid/vid */
+ if (!sn9c102_match_id(cam, tas5110c1b_id_table))
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &tas5110c1b);
+
+ return 0;
+}
diff --git a/drivers/media/video/sn9c102/sn9c102_tas5130d1b.c b/drivers/media/video/sn9c102/sn9c102_tas5130d1b.c
new file mode 100644
index 00000000000..9ecb09032b6
--- /dev/null
+++ b/drivers/media/video/sn9c102/sn9c102_tas5130d1b.c
@@ -0,0 +1,169 @@
+/***************************************************************************
+ * Plug-in for TAS5130D1B image sensor connected to the SN9C10x 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. *
+ ***************************************************************************/
+
+#include "sn9c102_sensor.h"
+
+
+static struct sn9c102_sensor tas5130d1b;
+
+
+static int tas5130d1b_init(struct sn9c102_device* cam)
+{
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, 0x01, 0x01);
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+ err += sn9c102_write_reg(cam, 0x04, 0x01);
+ err += sn9c102_write_reg(cam, 0x01, 0x10);
+ err += sn9c102_write_reg(cam, 0x00, 0x11);
+ err += sn9c102_write_reg(cam, 0x00, 0x14);
+ err += sn9c102_write_reg(cam, 0x60, 0x17);
+ err += sn9c102_write_reg(cam, 0x07, 0x18);
+
+ return err;
+}
+
+
+static int tas5130d1b_set_ctrl(struct sn9c102_device* cam,
+ const struct v4l2_control* ctrl)
+{
+ int err = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
+ break;
+ case V4L2_CID_EXPOSURE:
+ err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err ? -EIO : 0;
+}
+
+
+static int tas5130d1b_set_crop(struct sn9c102_device* cam,
+ const struct v4l2_rect* rect)
+{
+ struct sn9c102_sensor* s = &tas5130d1b;
+ u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
+ v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
+ int err = 0;
+
+ err += sn9c102_write_reg(cam, h_start, 0x12);
+ err += sn9c102_write_reg(cam, v_start, 0x13);
+
+ /* Do NOT change! */
+ err += sn9c102_write_reg(cam, 0x1f, 0x1a);
+ err += sn9c102_write_reg(cam, 0x1a, 0x1b);
+ err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
+
+ return err;
+}
+
+
+static int tas5130d1b_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x63, 0x19);
+ else
+ err += sn9c102_write_reg(cam, 0xf3, 0x19);
+
+ return err;
+}
+
+
+static struct sn9c102_sensor tas5130d1b = {
+ .name = "TAS5130D1B",
+ .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
+ .sysfs_ops = SN9C102_I2C_WRITE,
+ .frequency = SN9C102_I2C_100KHZ,
+ .interface = SN9C102_I2C_3WIRES,
+ .init = &tas5130d1b_init,
+ .qctrl = {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "global gain",
+ .minimum = 0x00,
+ .maximum = 0xf6,
+ .step = 0x02,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x00,
+ .maximum = 0x47,
+ .step = 0x01,
+ .default_value = 0x00,
+ .flags = 0,
+ },
+ },
+ .set_ctrl = &tas5130d1b_set_ctrl,
+ .cropcap = {
+ .bounds = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ .defrect = {
+ .left = 0,
+ .top = 0,
+ .width = 640,
+ .height = 480,
+ },
+ },
+ .set_crop = &tas5130d1b_set_crop,
+ .pix_format = {
+ .width = 640,
+ .height = 480,
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .priv = 8,
+ },
+ .set_pix_format = &tas5130d1b_set_pix_format
+};
+
+
+int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
+{
+ const struct usb_device_id tas5130d1b_id_table[] = {
+ { USB_DEVICE(0x0c45, 0x6025), },
+ { USB_DEVICE(0x0c45, 0x60aa), },
+ { }
+ };
+
+ /* Sensor detection is based on USB pid/vid */
+ if (!sn9c102_match_id(cam, tas5130d1b_id_table))
+ return -ENODEV;
+
+ sn9c102_attach_sensor(cam, &tas5130d1b);
+
+ return 0;
+}