first commit

1 files changed, 207 insertions, 0 deletions

diff --git a/include/mach/viatel_rawbulk.h b/include/mach/viatel_rawbulk.h
new file mode 100644
index 000000000..06b8dd089
--- /dev/null
+++ b/include/mach/viatel_rawbulk.h
@@ -0,0 +1,207 @@
+/*
+ * Rawbulk Driver from VIA Telecom
+ *
+ * Copyright (C) 2011 VIA Telecom, Inc.
+ * Author: Karfield Chen (kfchen@via-telecom.com)
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef __RAWBULK_H__
+#define __RAWBULK_H__
+
+#include <linux/usb.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/composite.h>
+#include <linux/usb/gadget.h>
+#include <linux/wakelock.h>
+#include <linux/workqueue.h>
+#include <linux/device.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/workqueue.h>
+#include <linux/kthread.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+
+#define INTF_DESC       0
+#define BULKIN_DESC     1
+#define BULKOUT_DESC    2
+#define MAX_DESC_ARRAY  4
+
+#define NAME_BUFFSIZE   64
+#define MAX_ATTRIBUTES    10
+
+#define MAX_TTY_RX          8
+#define MAX_TTY_RX_PACKAGE  512
+#define MAX_TTY_TX          8
+#define MAX_TTY_TX_PACKAGE  512
+
+//#define CONFIG_EVDO_DT_VIA_SUPPORT
+#ifdef CONFIG_EVDO_DT_VIA_SUPPORT
+enum transfer_id {
+	RAWBULK_TID_MODEM,
+	RAWBULK_TID_ETS,
+	RAWBULK_TID_AT,
+	RAWBULK_TID_PCV,
+	RAWBULK_TID_GPS,
+	_MAX_TID
+};
+#else
+enum transfer_id {
+	RAWBULK_TID_PCV,
+	RAWBULK_TID_MODEM,
+	RAWBULK_TID_ETS,
+	RAWBULK_TID_AT,
+	RAWBULK_TID_GPS,
+	_MAX_TID
+};
+#endif
+
+struct rawbulk_function {
+	int transfer_id;
+	const char *longname;
+	const char *shortname;
+	struct device *dev;
+
+	/* Controls */
+	spinlock_t lock;
+	int enable:1;
+	int activated:1;	/* set when usb enabled */
+	int tty_opened:1;
+
+	int initialized:1;	/* init-flag for activator worker */
+	struct work_struct activator;	/* asynic transaction starter */
+
+	struct wake_lock keep_awake;
+
+	/* USB Gadget related */
+	struct usb_function function;
+	struct usb_composite_dev *cdev;
+	struct usb_ep *bulk_out, *bulk_in;
+
+	int rts_state;		/* Handshaking pins (outputs) */
+	int dtr_state;
+	int cts_state;		/* Handshaking pins (inputs) */
+	int dsr_state;
+	int dcd_state;
+	int ri_state;
+
+	/* TTY related */
+	struct tty_struct *tty;
+	int tty_minor;
+	struct tty_port port;
+	spinlock_t tx_lock;
+	struct list_head tx_free;
+	struct list_head tx_inproc;
+	spinlock_t rx_lock;
+	struct list_head rx_free;
+	struct list_head rx_inproc;
+	struct list_head rx_throttled;
+	unsigned int last_pushed;
+	struct workqueue_struct *tty_push_wq;
+	struct work_struct tty_push_work;
+	int tty_throttled;
+	/* Transfer Controls */
+	int nups;
+	int ndowns;
+	int upsz;
+	int downsz;
+	/* int splitsz; */
+	int autoreconn;
+	int pushable;		/* Set to use push-way for upstream */
+	int cbp_reset;
+	/* Descriptors and Strings */
+	struct usb_descriptor_header *fs_descs[MAX_DESC_ARRAY];
+	struct usb_descriptor_header *hs_descs[MAX_DESC_ARRAY];
+	struct usb_string string_defs[2];
+	struct usb_gadget_strings string_table;
+	struct usb_gadget_strings *strings[2];
+	struct usb_interface_descriptor interface;
+	struct usb_endpoint_descriptor fs_bulkin_endpoint;
+	struct usb_endpoint_descriptor hs_bulkin_endpoint;
+	struct usb_endpoint_descriptor fs_bulkout_endpoint;
+	struct usb_endpoint_descriptor hs_bulkout_endpoint;
+
+	/* Sysfs Accesses */
+	int max_attrs;
+	struct device_attribute attr[MAX_ATTRIBUTES];
+};
+
+typedef void (*rawbulk_autoreconn_callback_t) (int transfer_id);
+
+/* bind/unbind host interfaces */
+int rawbulk_bind_sdio_channel(int transfer_id);
+void rawbulk_unbind_sdio_channel(int transfer_id);
+
+struct rawbulk_function *rawbulk_lookup_function(int transfer_id);
+
+/* rawbulk tty io */
+int rawbulk_register_tty(struct rawbulk_function *fn);
+void rawbulk_unregister_tty(struct rawbulk_function *fn);
+
+int rawbulk_tty_stop_io(struct rawbulk_function *fn);
+int rawbulk_tty_start_io(struct rawbulk_function *fn);
+int rawbulk_tty_alloc_request(struct rawbulk_function *fn);
+void rawbulk_tty_free_request(struct rawbulk_function *fn);
+
+/* bind/unbind for gadget */
+int rawbulk_bind_function(int transfer_id, struct usb_function *function,
+			  struct usb_ep *bulk_out, struct usb_ep *bulk_in,
+			  rawbulk_autoreconn_callback_t autoreconn_callback);
+void rawbulk_unbind_function(int trasfer_id);
+int rawbulk_check_enable(struct rawbulk_function *fn);
+void rawbulk_disable_function(struct rawbulk_function *fn);
+
+/* operations for transactions */
+int rawbulk_start_transactions(int transfer_id, int nups, int ndowns, int upsz, int downsz);
+void rawbulk_stop_transactions(int transfer_id);
+
+int rawbulk_push_upstream_buffer(int transfer_id, const void *buffer, unsigned int length);
+int rawbulk_transfer_statistics(int transfer_id, char *buf);
+int rawbulk_transfer_state(int transfer_id);
+
+extern int modem_dtr_set(int on, int low_latency);
+extern int modem_dcd_state(void);
+extern int sdio_buffer_push(int port_num, const unsigned char *buf, int count);
+extern int sdio_rawbulk_intercept(int port_num, unsigned int inception);
+
+/* debug mechanism */
+extern unsigned int c2k_usb_dbg_level;	/* refer to rawbulk_transfer.c */
+static inline int c2k_dbg_level(unsigned level)
+{
+	return c2k_usb_dbg_level >= level;
+}
+
+#define C2K_LOG_EMERG 		0 
+#define C2K_LOG_ALERT  		1
+#define C2K_LOG_CRIT   		2
+#define C2K_LOG_ERR    		3
+#define C2K_LOG_WARN    	4
+#define C2K_LOG_NOTICE 		5
+#define C2K_LOG_INFO   		6
+#define C2K_LOG_DBG  		7
+
+#define C2K_USB_DBG_ON
+#ifdef C2K_USB_DBG_ON
+#define C2K_ERR(format, args...) do {if(c2k_dbg_level(C2K_LOG_ERR)){printk(KERN_WARNING "C2K_USB_ERR,<%s %d>, " format , __func__, __LINE__ , ## args);}}while(0)
+#define C2K_WARN(format, args...) do {if(c2k_dbg_level(C2K_LOG_WARN)){printk(KERN_WARNING "C2K_USB_WARN,<%s %d>, " format , __func__, __LINE__ , ## args);}}while(0)
+#define C2K_NOTE(format, args...) do {if(c2k_dbg_level(C2K_LOG_NOTICE)){printk(KERN_WARNING "C2K_USB_NOTE,<%s %d>, " format , __func__, __LINE__ , ## args);}}while(0)
+#define C2K_INFO(format, args...) do {if(c2k_dbg_level(C2K_LOG_INFO)){printk(KERN_WARNING "C2K_USB_INFO,<%s %d>, " format , __func__, __LINE__ , ## args);}}while(0)
+#define C2K_DBG(format, args...) do {if(c2k_dbg_level(C2K_LOG_DBG)){printk(KERN_WARNING "C2K_USB_DBG,<%s %d>, " format , __func__, __LINE__ , ## args);}}while(0)
+#else
+#define C2K_ERR(format, args...) do {}while(0) 
+#define C2K_WARN(format, args...) do {}while(0) 
+#define C2K_INFO(format, args...) do {}while(0) 
+#define C2K_DBG(format, args...) do {}while(0) 
+#endif
+
+#endif				/* __RAWBULK_HEADER_FILE__ */