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path: root/drivers/usb/gadget/fsl_updater.h
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Diffstat (limited to 'drivers/usb/gadget/fsl_updater.h')
-rw-r--r--drivers/usb/gadget/fsl_updater.h148
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/usb/gadget/fsl_updater.h b/drivers/usb/gadget/fsl_updater.h
new file mode 100644
index 000000000000..1662f9d83ec6
--- /dev/null
+++ b/drivers/usb/gadget/fsl_updater.h
@@ -0,0 +1,148 @@
+/*
+ * Freescale UUT driver
+ *
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ * Copyright 2008-2009 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __FSL_UPDATER_H
+#define __FSL_UPDATER_H
+
+#include <linux/miscdevice.h>
+#include <linux/list.h>
+#include <linux/vmalloc.h>
+#include <linux/ioctl.h>
+#include <mach/hardware.h>
+
+static int utp_init(struct fsg_dev *fsg);
+static void utp_exit(struct fsg_dev *fsg);
+static ssize_t utp_file_read(struct file *file,
+ char __user *buf,
+ size_t size,
+ loff_t *off);
+
+static ssize_t utp_file_write(struct file *file,
+ const char __user *buf,
+ size_t size,
+ loff_t *off);
+
+static int utp_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg);
+static struct utp_user_data *utp_user_data_alloc(size_t size);
+static void utp_user_data_free(struct utp_user_data *uud);
+static int utp_get_sense(struct fsg_dev *fsg);
+static int utp_do_read(struct fsg_dev *fsg, void *data, size_t size);
+static int utp_do_write(struct fsg_dev *fsg, void *data, size_t size);
+static inline void utp_set_sense(struct fsg_dev *fsg, u16 code, u64 reply);
+static int utp_handle_message(struct fsg_dev *fsg,
+ char *cdb_data,
+ int default_reply);
+
+#define UTP_REPLY_PASS 0
+#define UTP_REPLY_EXIT 0x8001
+#define UTP_REPLY_BUSY 0x8002
+#define UTP_REPLY_SIZE 0x8003
+#define UTP_SENSE_KEY 9
+
+#define UTP_MINOR 222
+/* MISC_DYNAMIC_MINOR would be better, but... */
+
+#define UTP_COMMAND_SIZE 80
+
+#define UTP_SS_EXIT(fsg, r) utp_set_sense(fsg, UTP_REPLY_EXIT, (u64)r)
+#define UTP_SS_PASS(fsg) utp_set_sense(fsg, UTP_REPLY_PASS, 0)
+#define UTP_SS_BUSY(fsg, r) utp_set_sense(fsg, UTP_REPLY_BUSY, (u64)r)
+#define UTP_SS_SIZE(fsg, r) utp_set_sense(fsg, UTP_REPLY_SIZE, (u64)r)
+
+#define UTP_IOCTL_BASE 'U'
+#define UTP_GET_CPU_ID _IOR(UTP_IOCTL_BASE, 0, int)
+/* the structure of utp message which is mapped to 16-byte SCSI CBW's CDB */
+#pragma pack(1)
+struct utp_msg {
+ u8 f0;
+ u8 utp_msg_type;
+ u32 utp_msg_tag;
+ union {
+ struct {
+ u32 param_lsb;
+ u32 param_msb;
+ };
+ u64 param;
+ };
+};
+
+enum utp_msg_type {
+ UTP_POLL = 0,
+ UTP_EXEC,
+ UTP_GET,
+ UTP_PUT,
+};
+
+static struct utp_context {
+ wait_queue_head_t wq;
+ wait_queue_head_t list_full_wq;
+ struct mutex lock;
+ struct list_head read;
+ struct list_head write;
+ u32 sd, sdinfo, sdinfo_h; /* sense data */
+ int processed;
+ u8 *buffer;
+ u32 counter;
+ u64 utp_version;
+} utp_context;
+
+static const struct file_operations utp_fops = {
+ .open = nonseekable_open,
+ .read = utp_file_read,
+ .write = utp_file_write,
+ .ioctl = utp_ioctl,
+};
+
+static struct miscdevice utp_dev = {
+ .minor = UTP_MINOR,
+ .name = "utp",
+ .fops = &utp_fops,
+};
+
+#define UTP_FLAG_COMMAND 0x00000001
+#define UTP_FLAG_DATA 0x00000002
+#define UTP_FLAG_STATUS 0x00000004
+#define UTP_FLAG_REPORT_BUSY 0x10000000
+struct utp_message {
+ u32 flags;
+ size_t size;
+ union {
+ struct {
+ u64 payload;
+ char command[1];
+ };
+ struct {
+ size_t bufsize;
+ u8 data[1];
+ };
+ u32 status;
+ };
+};
+
+struct utp_user_data {
+ struct list_head link;
+ struct utp_message data;
+};
+#pragma pack()
+
+static inline struct utp_context *UTP_CTX(struct fsg_dev *fsg)
+{
+ return (struct utp_context *)fsg->utp;
+}
+
+#endif /* __FSL_UPDATER_H */
+