/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #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)) \ pr_warn("C2K_USB_ERR,<%s %d>, " format , __func__, __LINE__ , ## args); } \ while (0) #define C2K_WARN(format, args...) do {if (c2k_dbg_level(C2K_LOG_WARN)) \ pr_warn("C2K_USB_WARN,<%s %d>, " format , __func__, __LINE__ , ## args); } \ while (0) #define C2K_NOTE(format, args...) do {if (c2k_dbg_level(C2K_LOG_NOTICE)) \ pr_warn("C2K_USB_NOTE,<%s %d>, " format , __func__, __LINE__ , ## args); } \ while (0) #define C2K_INFO(format, args...) do {if (c2k_dbg_level(C2K_LOG_INFO)) \ pr_warn("C2K_USB_INFO,<%s %d>, " format , __func__, __LINE__ , ## args); } \ while (0) #define C2K_DBG(format, args...) do {if (c2k_dbg_level(C2K_LOG_DBG)) \ pr_warn("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_NOTE(format, args...) do {} while (0) #define C2K_INFO(format, args...) do {} while (0) #define C2K_DBG(format, args...) do {} while (0) #endif extern unsigned int upstream_data[_MAX_TID]; extern unsigned int upstream_cnt[_MAX_TID]; extern unsigned int total_drop[_MAX_TID]; extern unsigned int alloc_fail[_MAX_TID]; extern unsigned int total_tran[_MAX_TID]; extern unsigned long volatile jiffies; extern int modem_buffer_push(int port_num, void *buf, int count); #ifdef C2K_USB_UT extern int delay_set; extern int ut_err; #endif #endif /* __RAWBULK_HEADER_FILE__ */