Add ax203 camlib for ax203 based picture frames

This makes it possible to download pictures from / upload pictures to
ax203 based picture frames

It consists of 2 parts:
1) an ax203 camlib, ax203 access, image table parsing, and decompress /
   compress code.
 
2) usbscsi port driver, this is a *Linux only* (for now) port driver
   for accessing devices which require sending custom scsi commands to
   an usb mass storage device (using the /dev/sg# device under Linux).


git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@12854 67ed7778-7388-44ab-90cf-0a291f65f57c

3 files changed, 22 insertions, 1 deletions

diff --git a/libgphoto2_port/gphoto2/gphoto2-port-info-list.h b/libgphoto2_port/gphoto2/gphoto2-port-info-list.h
index 74db99154..2fda1b5e5 100644
--- a/libgphoto2_port/gphoto2/gphoto2-port-info-list.h
+++ b/libgphoto2_port/gphoto2/gphoto2-port-info-list.h
@@ -37,7 +37,8 @@ typedef enum {
 	GP_PORT_USB         = 1 << 2,	/**< \brief USB port. */
 	GP_PORT_DISK        = 1 << 3,	/**< \brief Disk / local mountpoint port. */
 	GP_PORT_PTPIP       = 1 << 4,	/**< \brief PTP/IP port. */
-	GP_PORT_USB_DISK_DIRECT = 1 << 5 /**< \brief Direct IO to an usb mass storage device. */
+	GP_PORT_USB_DISK_DIRECT = 1 << 5, /**< \brief Direct IO to an usb mass storage device. */
+	GP_PORT_USB_SCSI    = 1 << 6,	/**< \brief USB Mass Storage raw SCSI port. */
 } GPPortType;
 
 /**
diff --git a/libgphoto2_port/gphoto2/gphoto2-port-library.h b/libgphoto2_port/gphoto2/gphoto2-port-library.h
index 837f2bffc..ef510b705 100644
--- a/libgphoto2_port/gphoto2/gphoto2-port-library.h
+++ b/libgphoto2_port/gphoto2/gphoto2-port-library.h
@@ -74,6 +74,13 @@ typedef struct _GPPortOperations {
 
 	/* For USB disk direct IO devices */
 	int (*seek) (GPPort * dev, int offset, int whence);
+
+	/* For USB Mass Storage raw SCSI ports */
+	int (*send_scsi_cmd) (GPPort *port, int to_dev,
+				char *cmd, int cmd_size,
+				char *sense, int sense_size,
+				char *data, int data_size);
+
 } GPPortOperations;
 
 typedef GPPortType (* GPPortLibraryType) (void);
diff --git a/libgphoto2_port/gphoto2/gphoto2-port.h b/libgphoto2_port/gphoto2/gphoto2-port.h
index 7ca367b43..7214a2a6c 100644
--- a/libgphoto2_port/gphoto2/gphoto2-port.h
+++ b/libgphoto2_port/gphoto2/gphoto2-port.h
@@ -99,6 +99,13 @@ typedef struct _GPPortSettingsUsbDiskDirect {
 } GPPortSettingsUsbDiskDirect;
 
 /**
+ * \brief Port settings for USB Mass Storage raw SCSI ports.
+ */
+typedef struct _GPPortSettingsUsbScsi {
+	char path[128];		/**< /brief The ports device node path (/dev/sg#)*/
+} GPPortSettingsUsbScsi;
+
+/**
  * \brief Union of port settings.
  *
  * This contains a shared union of possible settings for ports needing
@@ -108,6 +115,7 @@ typedef union _GPPortSettings {
 	GPPortSettingsSerial serial;	/**< \brief Serial specific settings */
 	GPPortSettingsUSB usb;		/**< \brief USB specific settings */
 	GPPortSettingsUsbDiskDirect usbdiskdirect; /**< \brief usb disk direct port specific settings */
+	GPPortSettingsUsbScsi usbscsi;	/**< \brief usb scsi port specific settings */
 } GPPortSettings;
 
 enum {
@@ -214,6 +222,11 @@ int gp_port_usb_msg_class_read    (GPPort *port, int request,
 
 int gp_port_seek (GPPort *port, int offset, int whence);
 
+int gp_port_send_scsi_cmd (GPPort *port, int to_dev,
+				char *cmd, int cmd_size,
+				char *sense, int sense_size,
+				char *data, int data_size);
+
 /* Error reporting */
 int         gp_port_set_error (GPPort *port, const char *format, ...)
 #ifdef __GNUC__