diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index 937ad6fea837..e1f4e19f958f 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -99,5 +99,7 @@ source "drivers/staging/pohmelfs/Kconfig" source "drivers/staging/stlc45xx/Kconfig" +source "drivers/staging/uc2322/Kconfig" + endif # !STAGING_EXCLUDE_BUILD endif # STAGING diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index 88be12e223c4..a7177d206eb7 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -32,3 +32,4 @@ obj-$(CONFIG_ANDROID) += android/ obj-$(CONFIG_DST) += dst/ obj-$(CONFIG_POHMELFS) += pohmelfs/ obj-$(CONFIG_STLC45XX) += stlc45xx/ +obj-$(CONFIG_USB_SERIAL_ATEN2011) += uc2322/ diff --git a/drivers/staging/uc2322/Kconfig b/drivers/staging/uc2322/Kconfig new file mode 100644 index 000000000000..2e0c6e79df2b --- /dev/null +++ b/drivers/staging/uc2322/Kconfig @@ -0,0 +1,10 @@ +config USB_SERIAL_ATEN2011 + tristate "ATEN 2011 USB to serial device support" + depends on USB_SERIAL + default N + ---help--- + Say Y here if you want to use a ATEN 2011 dual port USB to serial + adapter. + + To compile this driver as a module, choose M here: the module will be + called aten2011. diff --git a/drivers/staging/uc2322/Makefile b/drivers/staging/uc2322/Makefile new file mode 100644 index 000000000000..49c18d6e579f --- /dev/null +++ b/drivers/staging/uc2322/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_USB_SERIAL_ATEN2011) += aten2011.o diff --git a/drivers/staging/uc2322/TODO b/drivers/staging/uc2322/TODO new file mode 100644 index 000000000000..8d96ad42a43b --- /dev/null +++ b/drivers/staging/uc2322/TODO @@ -0,0 +1,8 @@ +TODO: + - checkpatch.pl cleanups + - sparse cleanups + - remove dead and useless code (auditing the tty ioctls to + verify that they really are correct and needed.) + +Please send any patches to Greg Kroah-Hartman and +Russell Lang . diff --git a/drivers/staging/uc2322/aten2011.c b/drivers/staging/uc2322/aten2011.c new file mode 100644 index 000000000000..2c3e477d8d73 --- /dev/null +++ b/drivers/staging/uc2322/aten2011.c @@ -0,0 +1,3625 @@ +/* + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +/************************************************************************* + *** -------------------------------------------------------------------- + *** + *** Project Name: ATENINTL + *** + *** Module Name: ATEN2011 + *** + *** File: aten2011.c + *** + *** + *** File Revision: 1.2 + *** + *** Revision Date: 2009-01-16 + *** + *** + *** Purpose : It gives an interface between USB to 4 Serial + *** and serves as a Serial Driver for the high + *** level layers /applications. + *** + *** Change History: + *** Modified from ATEN revision 1.2 for Linux kernel 2.6.26 or later + *** + *** LEGEND : + *** + *** + *** DBG - Code inserted due to as part of debugging + *** DPRINTK - Debug Print statement + *** + *************************************************************************/ + +/* all file inclusion goes here */ + + +#include +#include +#include +#include +#include +#include +#include +#include +//#include +#include +//#include +#include +#include + + +#define KERNEL_2_6 1 + +#include +#include "aten2011.h" /* ATEN2011 Defines */ +#include "aten2011_16C50.h" /* 16C50 UART defines */ + +/* all defines goes here */ + +/* + * Debug related defines + */ + +/* 1: Enables the debugging -- 0: Disable the debugging */ + +//#define printk // + +#define ATEN_DEBUG 0 + +#ifdef ATEN_DEBUG + static int debug = 0; + #define DPRINTK(fmt, args...) printk( "%s: " fmt, __FUNCTION__ , ## args) + +#else + static int debug = 0; + #define DPRINTK(fmt, args...) + +#endif +//#undef DPRINTK +// #define DPRINTK(fmt, args...) + + + + +/* + * Version Information + */ +#define DRIVER_VERSION "1.3.1" +#define DRIVER_DESC "ATENINTL 2011 USB Serial Adapter" + +/* + * Defines used for sending commands to port + */ + +#define WAIT_FOR_EVER (HZ * 0 ) /* timeout urb is wait for ever*/ +#define ATEN_WDR_TIMEOUT (HZ * 5 ) /* default urb timeout */ + +#define ATEN_PORT1 0x0200 +#define ATEN_PORT2 0x0300 +#define ATEN_VENREG 0x0000 +#define ATEN_MAX_PORT 0x02 +#define ATEN_WRITE 0x0E +#define ATEN_READ 0x0D + +/* Requests */ +#define ATEN_RD_RTYPE 0xC0 +#define ATEN_WR_RTYPE 0x40 +#define ATEN_RDREQ 0x0D +#define ATEN_WRREQ 0x0E +#define ATEN_CTRL_TIMEOUT 500 +#define VENDOR_READ_LENGTH (0x01) + + +int ATEN2011_Thr_cnt; +//int ATEN2011_spectrum_2or4ports; //this says the number of ports in the device +//int NoOfOpenPorts; + +int RS485mode=0; //set to 1 for RS485 mode and 0 for RS232 mode + +static struct usb_serial* ATEN2011_get_usb_serial (struct usb_serial_port *port, const +char *function); +static int ATEN2011_serial_paranoia_check (struct usb_serial *serial, const char +*function); +static int ATEN2011_port_paranoia_check (struct usb_serial_port *port, const char +*function); + + +/* setting and get register values */ +static int ATEN2011_set_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 val); +static int ATEN2011_get_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 * val); +static int ATEN2011_set_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 val); +static int ATEN2011_get_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 * val); + +void ATEN2011_Dump_serial_port(struct ATENINTL_port *ATEN2011_port); + +/************************************************************************/ +/************************************************************************/ +/* I N T E R F A C E F U N C T I O N S */ +/* I N T E R F A C E F U N C T I O N S */ +/************************************************************************/ +/************************************************************************/ + +static inline void ATEN2011_set_serial_private(struct usb_serial *serial, struct ATENINTL_serial *data) +{ + usb_set_serial_data(serial, (void *)data ); +} + +static inline struct ATENINTL_serial * ATEN2011_get_serial_private(struct usb_serial *serial) +{ + return (struct ATENINTL_serial*) usb_get_serial_data(serial); +} + +static inline void ATEN2011_set_port_private(struct usb_serial_port *port, struct ATENINTL_port *data) +{ + usb_set_serial_port_data(port, (void*)data ); +} + +static inline struct ATENINTL_port * ATEN2011_get_port_private(struct usb_serial_port *port) +{ + return (struct ATENINTL_port*) usb_get_serial_port_data(port); +} + +/* +Description:- To set the Control register by calling usb_fill_control_urb function by passing usb_sndctrlpipe function as parameter. + +Input Parameters: +usb_serial_port: Data Structure usb_serialport correponding to that seril port. +Reg: Register Address +Val: Value to set in the Register. + */ + +static int ATEN2011_set_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 val) +{ + struct usb_device *dev = port->serial->dev; + val = val & 0x00ff; + DPRINTK("ATEN2011_set_reg_sync offset is %x, value %x\n",reg,val); + + + return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ, + ATEN_WR_RTYPE, val, reg, NULL, 0,ATEN_WDR_TIMEOUT); +} + + + +/* +Description:- To set the Uart register by calling usb_fill_control_urb function by passing usb_rcvctrlpipe function as parameter. + +Input Parameters: +usb_serial_port: Data Structure usb_serialport correponding to that seril port. +Reg: Register Address +Val: Value to receive from the Register. + */ + +static int ATEN2011_get_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 * val) +{ + struct usb_device *dev = port->serial->dev; + int ret=0; + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ, + ATEN_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,ATEN_WDR_TIMEOUT); + DPRINTK("ATEN2011_get_reg_sync offset is %x, return val %x\n",reg,*val); + *val = (*val) & 0x00ff; + return ret; +} + + + +/* +Description:- To set the Uart register by calling usb_fill_control_urb function by passing usb_sndctrlpipe function as parameter. + +Input Parameters: +usb_serial_port: Data Structure usb_serialport correponding to that seril port. +Reg: Register Address +Val: Value to set in the Register. + */ + +static int ATEN2011_set_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 val) +{ + + + struct usb_device *dev = port->serial->dev; + struct ATENINTL_serial *ATEN2011_serial; + int minor; + ATEN2011_serial = ATEN2011_get_serial_private(port->serial); + minor = port->serial->minor; + if (minor == SERIAL_TTY_NO_MINOR) + minor = 0; + val = val & 0x00ff; + // For the UART control registers, the application number need to be Or'ed + + if(ATEN2011_serial->ATEN2011_spectrum_2or4ports == 4) + { + val |= (((__u16)port->number - (__u16)(minor))+1)<<8; + DPRINTK("ATEN2011_set_Uart_Reg application number is %x\n",val); + } + else + { + if( ((__u16)port->number - (__u16)(minor)) == 0) + { + // val= 0x100; + val |= (((__u16)port->number - (__u16)(minor))+1)<<8; + DPRINTK("ATEN2011_set_Uart_Reg application number is %x\n",val); + } + else + { + // val=0x300; + val |= (((__u16)port->number - (__u16)(minor))+2)<<8; + DPRINTK("ATEN2011_set_Uart_Reg application number is %x\n",val); + } + } + return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ, + ATEN_WR_RTYPE, val, reg, NULL, 0,ATEN_WDR_TIMEOUT); + +} + + +/* +Description:- To set the Control register by calling usb_fill_control_urb function by passing usb_rcvctrlpipe function as parameter. + +Input Parameters: +usb_serial_port: Data Structure usb_serialport correponding to that seril port. +Reg: Register Address +Val: Value to receive from the Register. + */ +static int ATEN2011_get_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 * val) +{ + struct usb_device *dev = port->serial->dev; + int ret=0; + __u16 Wval; + struct ATENINTL_serial *ATEN2011_serial; + int minor = port->serial->minor; + ATEN2011_serial = ATEN2011_get_serial_private(port->serial); + if (minor == SERIAL_TTY_NO_MINOR) + minor = 0; + + //DPRINTK("application number is %4x \n",(((__u16)port->number - (__u16)(minor))+1)<<8); + /*Wval is same as application number*/ + if(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4) + { + Wval=(((__u16)port->number - (__u16)(minor))+1)<<8; + DPRINTK("ATEN2011_get_Uart_Reg application number is %x\n",Wval); + } + else + { + if( ((__u16)port->number - (__u16)(minor)) == 0) + { + // Wval= 0x100; + Wval=(((__u16)port->number - (__u16)(minor))+1)<<8; + DPRINTK("ATEN2011_get_Uart_Reg application number is %x\n",Wval); + } + else + { + // Wval=0x300; + Wval=(((__u16)port->number - (__u16)(minor))+2)<<8; + DPRINTK("ATEN2011_get_Uart_Reg application number is %x\n",Wval); + } + } + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ, + ATEN_RD_RTYPE, Wval, reg, val,VENDOR_READ_LENGTH,ATEN_WDR_TIMEOUT); + *val = (*val) & 0x00ff; + return ret; +} + + + +void ATEN2011_Dump_serial_port(struct ATENINTL_port *ATEN2011_port) +{ + + DPRINTK("***************************************\n"); + DPRINTK("Application number is %4x\n",ATEN2011_port->AppNum); + DPRINTK("SpRegOffset is %2x\n",ATEN2011_port->SpRegOffset); + DPRINTK("ControlRegOffset is %2x \n",ATEN2011_port->ControlRegOffset); + DPRINTK("DCRRegOffset is %2x \n",ATEN2011_port->DcrRegOffset); + //DPRINTK("ClkSelectRegOffset is %2x \n",ATEN2011_port->ClkSelectRegOffset); + DPRINTK("***************************************\n"); + +} + +/* all structre defination goes here */ +/**************************************************************************** + * ATENINTL2011_4port_device + * Structure defining ATEN2011, usb serial device + ****************************************************************************/ +static struct usb_serial_driver ATENINTL2011_4port_device = { + .driver = { + .owner = THIS_MODULE, + .name = "ATEN2011", + }, + .description = DRIVER_DESC, + .id_table = ATENINTL_port_id_table, + .open = ATEN2011_open, + .close = ATEN2011_close, + .write = ATEN2011_write, + .write_room = ATEN2011_write_room, + .chars_in_buffer = ATEN2011_chars_in_buffer, + .throttle = ATEN2011_throttle, + .unthrottle = ATEN2011_unthrottle, + .calc_num_ports = ATEN2011_calc_num_ports, + +#ifdef ATENSerialProbe + .probe = ATEN2011_serial_probe, +#endif + .ioctl = ATEN2011_ioctl, + .set_termios = ATEN2011_set_termios, + .break_ctl = ATEN2011_break, +// .break_ctl = ATEN2011_break_ctl, + .tiocmget = ATEN2011_tiocmget, + .tiocmset = ATEN2011_tiocmset, + .attach = ATEN2011_startup, + .shutdown = ATEN2011_shutdown, + .read_bulk_callback = ATEN2011_bulk_in_callback, + .read_int_callback = ATEN2011_interrupt_callback, +}; + +static struct usb_driver io_driver = { + .name = "ATEN2011", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table_combined, +}; + + + +/************************************************************************/ +/************************************************************************/ +/* U S B C A L L B A C K F U N C T I O N S */ +/* U S B C A L L B A C K F U N C T I O N S */ +/************************************************************************/ +/************************************************************************/ + +/***************************************************************************** + * ATEN2011_interrupt_callback + * this is the callback function for when we have received data on the + * interrupt endpoint. + * Input : 1 Input + * pointer to the URB packet, + * + *****************************************************************************/ +//#ifdef ATEN2011 +static void ATEN2011_interrupt_callback (struct urb *urb) +{ + int result; + int length ; + struct ATENINTL_port *ATEN2011_port; + struct ATENINTL_serial *ATEN2011_serial; + struct usb_serial *serial; + __u16 Data; + unsigned char *data; + __u8 sp[5],st; + int i; + __u16 wval; + int minor; + //printk("in the function ATEN2011_interrupt_callback Length %d, Data %x \n",urb->actual_length,(unsigned int)urb->transfer_buffer); + DPRINTK("%s"," : Entering\n"); + + ATEN2011_serial= (struct ATENINTL_serial *)urb->context; + if(!urb)// || ATEN2011_serial->status_polling_started == FALSE ) + { + DPRINTK("%s","Invalid Pointer !!!!:\n"); + return; + } + + switch (urb->status) + { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + goto exit; + } + length = urb->actual_length; + data = urb->transfer_buffer; + + //ATEN2011_serial= (struct ATENINTL_serial *)urb->context; + //serial = ATEN2011_get_usb_serial(port,__FUNCTION__); + serial = ATEN2011_serial->serial; + + /* ATENINTL get 5 bytes + * Byte 1 IIR Port 1 (port.number is 0) + * Byte 2 IIR Port 2 (port.number is 1) + * Byte 3 IIR Port 3 (port.number is 2) + * Byte 4 IIR Port 4 (port.number is 3) + * Byte 5 FIFO status for both */ + + if(length && length>5) + { + DPRINTK("%s \n","Wrong data !!!"); + return; + } + + /* MATRIX */ + if(ATEN2011_serial->ATEN2011_spectrum_2or4ports == 4) + { + sp[0]=(__u8)data[0]; + sp[1]=(__u8)data[1]; + sp[2]=(__u8)data[2]; + sp[3]=(__u8)data[3]; + st=(__u8)data[4]; + } + else + { + sp[0]=(__u8)data[0]; + sp[1]=(__u8)data[2]; + //sp[2]=(__u8)data[2]; + //sp[3]=(__u8)data[3]; + st=(__u8)data[4]; + + } + // printk("%s data is sp1:%x sp2:%x sp3:%x sp4:%x status:%x\n",__FUNCTION__,sp1,sp2,sp3,sp4,st); + for(i=0;inum_ports;i++) + { + ATEN2011_port = ATEN2011_get_port_private(serial->port[i]); + minor = serial->minor; + if (minor == SERIAL_TTY_NO_MINOR) + minor = 0; + if((ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2) && (i != 0)) + wval = (((__u16)serial->port[i]->number - (__u16)(minor))+2)<<8; + else + wval = (((__u16)serial->port[i]->number - (__u16)(minor))+1)<<8; + if(ATEN2011_port->open != FALSE) + { + //printk("%s wval is:(for 2011) %x\n",__FUNCTION__,wval); + + if(sp[i] & 0x01) + { + DPRINTK("SP%d No Interrupt !!!\n",i); + } + else + { + switch(sp[i] & 0x0f) + { + case SERIAL_IIR_RLS: + DPRINTK("Serial Port %d: Receiver status error or ",i); + DPRINTK("address bit detected in 9-bit mode\n"); + ATEN2011_port->MsrLsr=1; + ATEN2011_get_reg(ATEN2011_port,wval,LINE_STATUS_REGISTER,&Data); + break; + case SERIAL_IIR_MS: + DPRINTK("Serial Port %d: Modem status change\n",i); + ATEN2011_port->MsrLsr=0; + ATEN2011_get_reg(ATEN2011_port,wval, MODEM_STATUS_REGISTER, &Data); + break; + } + } + } + + } +exit: + if( ATEN2011_serial->status_polling_started == FALSE ) + return; + + result = usb_submit_urb (urb, GFP_ATOMIC); + if (result) + { + dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n", __FUNCTION__, result); + } + + return; + +} +//#endif +static void ATEN2011_control_callback(struct urb *urb) +{ + unsigned char *data; + struct ATENINTL_port *ATEN2011_port; + __u8 regval=0x0; + + if(!urb) + { + DPRINTK("%s","Invalid Pointer !!!!:\n"); + return; + } + + switch (urb->status) + { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); return; + default: + dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + goto exit; + } + + + ATEN2011_port = (struct ATENINTL_port *)urb->context; + + DPRINTK("%s urb buffer size is %d\n",__FUNCTION__,urb->actual_length); + DPRINTK("%s ATEN2011_port->MsrLsr is %d port %d\n",__FUNCTION__,ATEN2011_port->MsrLsr,ATEN2011_port->port_num); + data=urb->transfer_buffer; + regval=(__u8)data[0]; + DPRINTK("%s data is %x\n",__FUNCTION__,regval); + if(ATEN2011_port->MsrLsr==0) + handle_newMsr(ATEN2011_port,regval); + else if(ATEN2011_port->MsrLsr==1) + handle_newLsr(ATEN2011_port,regval); + +exit: + return; +} +int handle_newMsr(struct ATENINTL_port *port,__u8 newMsr) +{ + struct ATENINTL_port *ATEN2011_port; + struct async_icount *icount; + ATEN2011_port=port; + icount = &ATEN2011_port->icount; + if (newMsr & (ATEN_MSR_DELTA_CTS | ATEN_MSR_DELTA_DSR | ATEN_MSR_DELTA_RI | ATEN_MSR_DELTA_CD)) { + icount = &ATEN2011_port->icount; + + /* update input line counters */ + if (newMsr & ATEN_MSR_DELTA_CTS) { + icount->cts++; + } + if (newMsr & ATEN_MSR_DELTA_DSR) { + icount->dsr++; + } + if (newMsr & ATEN_MSR_DELTA_CD) { + icount->dcd++; + } + if (newMsr & ATEN_MSR_DELTA_RI) { + icount->rng++; + } + } + + + return 0; +} +int handle_newLsr(struct ATENINTL_port *port,__u8 newLsr) +{ + struct async_icount *icount; + + dbg("%s - %02x", __FUNCTION__, newLsr); + + + if (newLsr & SERIAL_LSR_BI) { + // + // Parity and Framing errors only count if they + // occur exclusive of a break being + // received. + // + newLsr &= (__u8)(SERIAL_LSR_OE | SERIAL_LSR_BI); + } + + + /* update input line counters */ + icount = &port->icount; + if (newLsr & SERIAL_LSR_BI) { + icount->brk++; + } + if (newLsr & SERIAL_LSR_OE) { + icount->overrun++; + } + if (newLsr & SERIAL_LSR_PE) { + icount->parity++; + } + if (newLsr & SERIAL_LSR_FE) { + icount->frame++; + } + + + return 0; +} +static int ATEN2011_get_reg(struct ATENINTL_port *ATEN,__u16 Wval, __u16 reg, __u16 * val) +{ + struct usb_device *dev = ATEN->port->serial->dev; + struct usb_ctrlrequest *dr=NULL; + unsigned char *buffer=NULL; + int ret=0; + buffer= (__u8 *)ATEN->ctrl_buf; + +// dr=(struct usb_ctrlrequest *)(buffer); + dr=(void *)(buffer + 2); + dr->bRequestType = ATEN_RD_RTYPE; + dr->bRequest = ATEN_RDREQ; + dr->wValue = cpu_to_le16(Wval);//0; + dr->wIndex = cpu_to_le16(reg); + dr->wLength = cpu_to_le16(2); + + usb_fill_control_urb(ATEN->control_urb,dev,usb_rcvctrlpipe(dev,0),(unsigned char *)dr,buffer,2,ATEN2011_control_callback,ATEN); + ATEN->control_urb->transfer_buffer_length = 2; + ret=usb_submit_urb(ATEN->control_urb,GFP_ATOMIC); + return ret; +} + +/***************************************************************************** + * ATEN2011_bulk_in_callback + * this is the callback function for when we have received data on the + * bulk in endpoint. + * Input : 1 Input + * pointer to the URB packet, + * + *****************************************************************************/ +static void ATEN2011_bulk_in_callback (struct urb *urb) +{ + int status; + unsigned char *data ; + struct usb_serial *serial; + struct usb_serial_port *port; + struct ATENINTL_serial *ATEN2011_serial; + struct ATENINTL_port *ATEN2011_port; + struct tty_struct *tty; + if(!urb) + { + DPRINTK("%s","Invalid Pointer !!!!:\n"); + return; + } + + if (urb->status) + { + DPRINTK("nonzero read bulk status received: %d",urb->status); +// if(urb->status==84) + //ThreadState=1; + return; + } + + ATEN2011_port= (struct ATENINTL_port*)urb->context; + if(!ATEN2011_port) + { + DPRINTK("%s","NULL ATEN2011_port pointer \n"); + return ; + } + + port = (struct usb_serial_port *)ATEN2011_port->port; + if (ATEN2011_port_paranoia_check (port, __FUNCTION__)) + { + DPRINTK("%s","Port Paranoia failed \n"); + return; + } + + serial = ATEN2011_get_usb_serial(port,__FUNCTION__); + if(!serial) + { + DPRINTK("%s\n","Bad serial pointer "); + return; + } + + DPRINTK("%s\n","Entering... \n"); + + data = urb->transfer_buffer; + ATEN2011_serial = ATEN2011_get_serial_private(serial); + + DPRINTK("%s","Entering ........... \n"); + + if (urb->actual_length) + { +//MATRIX +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) + tty = tty_port_tty_get(&ATEN2011_port->port->port); +#elif LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27) + tty = ATEN2011_port->port->port.tty; +#else + tty = ATEN2011_port->port->tty; +#endif + if (tty) + { + tty_buffer_request_room(tty, urb->actual_length); + tty_insert_flip_string(tty, data, urb->actual_length); + DPRINTK(" %s \n",data); + tty_flip_buffer_push(tty); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) + tty_kref_put(tty); +#endif + } + + + ATEN2011_port->icount.rx += urb->actual_length; + DPRINTK("ATEN2011_port->icount.rx is %d:\n",ATEN2011_port->icount.rx); +//MATRIX + } + + if(!ATEN2011_port->read_urb) + { + DPRINTK("%s","URB KILLED !!!\n"); + return; + } + + if(ATEN2011_port->read_urb->status!=-EINPROGRESS) + { + ATEN2011_port->read_urb->dev = serial->dev; + + status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC); + + if (status) + { + DPRINTK(" usb_submit_urb(read bulk) failed, status = %d", status); + } + } +} + +/***************************************************************************** + * ATEN2011_bulk_out_data_callback + * this is the callback function for when we have finished sending serial data + * on the bulk out endpoint. + * Input : 1 Input + * pointer to the URB packet, + * + *****************************************************************************/ +static void ATEN2011_bulk_out_data_callback (struct urb *urb) +{ + struct ATENINTL_port *ATEN2011_port ; + struct tty_struct *tty; + if(!urb) + { + DPRINTK("%s","Invalid Pointer !!!!:\n"); + return; + } + + if (urb->status) + { + DPRINTK("nonzero write bulk status received:%d\n", urb->status); + return; + } + + ATEN2011_port = (struct ATENINTL_port *)urb->context; + if(!ATEN2011_port) + { + DPRINTK("%s","NULL ATEN2011_port pointer \n"); + return ; + } + + if (ATEN2011_port_paranoia_check (ATEN2011_port->port, __FUNCTION__)) + { + DPRINTK("%s","Port Paranoia failed \n"); + return; + } + + DPRINTK("%s \n","Entering ........."); + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) + tty = tty_port_tty_get(&ATEN2011_port->port->port); +#elif LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27) + tty = ATEN2011_port->port->port.tty; +#else + tty = ATEN2011_port->port->tty; +#endif + + if (tty && ATEN2011_port->open) + { + /* let the tty driver wakeup if it has a special * + * write_wakeup function */ + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup) { + (tty->ldisc.write_wakeup)(tty); + } +#endif + + /* tell the tty driver that something has changed */ + wake_up_interruptible(&tty->write_wait); + } + + /* Release the Write URB */ + ATEN2011_port->write_in_progress = FALSE; + +//schedule_work(&ATEN2011_port->port->work); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) + tty_kref_put(tty); +#endif + +} + + + + + + +/************************************************************************/ +/* D R I V E R T T Y I N T E R F A C E F U N C T I O N S */ +/************************************************************************/ +#ifdef ATENSerialProbe +static int ATEN2011_serial_probe(struct usb_serial *serial, const struct usb_device_id *id) +{ + + /*need to implement the mode_reg reading and updating\ + structures usb_serial_ device_type\ + (i.e num_ports, num_bulkin,bulkout etc)*/ + /* Also we can update the changes attach */ + return 1; +} +#endif + +/***************************************************************************** + * SerialOpen + * this function is called by the tty driver when a port is opened + * If successful, we return 0 + * Otherwise we return a negative error number. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port, struct file * filp) +#else +static int ATEN2011_open(struct usb_serial_port *port, struct file * filp) +#endif +{ + int response; + int j; + struct usb_serial *serial; +// struct usb_serial_port *port0; + struct urb *urb; + __u16 Data; + int status; + struct ATENINTL_serial *ATEN2011_serial; + struct ATENINTL_port *ATEN2011_port; + struct ktermios tmp_termios; + int minor; +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + struct tty_struct *tty = NULL; +#endif + if (ATEN2011_port_paranoia_check (port, __FUNCTION__)) + { + DPRINTK("%s","Port Paranoia failed \n"); + return -ENODEV; + } + + //ATEN2011_serial->NoOfOpenPorts++; + serial = port->serial; + + if (ATEN2011_serial_paranoia_check (serial, __FUNCTION__)) + { + DPRINTK("%s","Serial Paranoia failed \n"); + return -ENODEV; + } + + ATEN2011_port = ATEN2011_get_port_private(port); + + if (ATEN2011_port == NULL) + return -ENODEV; +/* + if (ATEN2011_port->ctrl_buf==NULL) + { + ATEN2011_port->ctrl_buf = kmalloc(16,GFP_KERNEL); + if (ATEN2011_port->ctrl_buf == NULL) { + printk(", Can't allocate ctrl buff\n"); + return -ENOMEM; + } + + } + + if(!ATEN2011_port->control_urb) + { + ATEN2011_port->control_urb=kmalloc(sizeof(struct urb),GFP_KERNEL); + } +*/ +// port0 = serial->port[0]; + + ATEN2011_serial = ATEN2011_get_serial_private(serial); + + if (ATEN2011_serial == NULL )//|| port0 == NULL) + { + return -ENODEV; + } + // increment the number of opened ports counter here + ATEN2011_serial->NoOfOpenPorts++; + //printk("the num of ports opend is:%d\n",ATEN2011_serial->NoOfOpenPorts); + + + usb_clear_halt(serial->dev, port->write_urb->pipe); + usb_clear_halt(serial->dev, port->read_urb->pipe); + + /* Initialising the write urb pool */ + for (j = 0; j < NUM_URBS; ++j) + { + urb = usb_alloc_urb(0,GFP_ATOMIC); + ATEN2011_port->write_urb_pool[j] = urb; + + if (urb == NULL) + { + err("No more urbs???"); + continue; + } + + urb->transfer_buffer = NULL; + urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); + if (!urb->transfer_buffer) + { + err("%s-out of memory for urb buffers.", __FUNCTION__); + continue; + } + } + + +/***************************************************************************** + * Initialize ATEN2011 -- Write Init values to corresponding Registers + * + * Register Index + * 1 : IER + * 2 : FCR + * 3 : LCR + * 4 : MCR + * + * 0x08 : SP1/2 Control Reg + *****************************************************************************/ + +//NEED to check the fallowing Block + + status=0; + Data=0x0; + status=ATEN2011_get_reg_sync(port,ATEN2011_port->SpRegOffset,&Data); + if(status<0){ + DPRINTK("Reading Spreg failed\n"); + return -1; + } + Data |= 0x80; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data); + if(status<0){ + DPRINTK("writing Spreg failed\n"); + return -1; + } + + Data &= ~0x80; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data); + if(status<0){ + DPRINTK("writing Spreg failed\n"); + return -1; + } + + +//End of block to be checked +//**************************CHECK***************************// + + if(RS485mode==0) + Data = 0xC0; + else + Data = 0x00; + status=0; + status=ATEN2011_set_Uart_Reg(port,SCRATCH_PAD_REGISTER,Data); + if(status<0) { + DPRINTK("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status); + return -1; + } + else DPRINTK("SCRATCH_PAD_REGISTER Writing success status%d\n",status); + + +//**************************CHECK***************************// + + status=0; + Data=0x0; + status=ATEN2011_get_reg_sync(port,ATEN2011_port->ControlRegOffset,&Data); + if(status<0){ + DPRINTK("Reading Controlreg failed\n"); + return -1; + } + Data |= 0x08;//Driver done bit + /* + status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data); + if(status<0){ + DPRINTK("writing Controlreg failed\n"); + return -1; + } + */ + Data |= 0x20;//rx_disable + status=0; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data); + if(status<0){ + DPRINTK("writing Controlreg failed\n"); + return -1; + } + + //do register settings here + // Set all regs to the device default values. + //////////////////////////////////// + // First Disable all interrupts. + //////////////////////////////////// + + Data = 0x00; + status=0; + status = ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data); + if(status<0){ + DPRINTK("disableing interrupts failed\n"); + return -1; + } + // Set FIFO_CONTROL_REGISTER to the default value + Data = 0x00; + status=0; + status = ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data); + if(status<0){ + DPRINTK("Writing FIFO_CONTROL_REGISTER failed\n"); + return -1; + } + + Data = 0xcf; //chk + status=0; + status = ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data); + if(status<0){ + DPRINTK("Writing FIFO_CONTROL_REGISTER failed\n"); + return -1; + } + + Data = 0x03; //LCR_BITS_8 + status=0; + status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + ATEN2011_port->shadowLCR=Data; + + Data = 0x0b; // MCR_DTR|MCR_RTS|MCR_MASTER_IE + status=0; + status = ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + ATEN2011_port->shadowMCR=Data; + +#ifdef Check + Data = 0x00; + status=0; + status = ATEN2011_get_Uart_Reg(port,LINE_CONTROL_REGISTER,&Data); + ATEN2011_port->shadowLCR=Data; + + Data |= SERIAL_LCR_DLAB; //data latch enable in LCR 0x80 + status = 0; + status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + + Data = 0x0c; + status=0; + status = ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_LSB,Data); + + Data = 0x0; + status=0; + status = ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_MSB,Data); + + Data = 0x00; + status=0; + status = ATEN2011_get_Uart_Reg(port,LINE_CONTROL_REGISTER,&Data); + +// Data = ATEN2011_port->shadowLCR; //data latch disable + Data = Data & ~SERIAL_LCR_DLAB; + status = 0; + status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + ATEN2011_port->shadowLCR=Data; +#endif + //clearing Bulkin and Bulkout Fifo + Data = 0x0; + status = 0; + status = ATEN2011_get_reg_sync(port,ATEN2011_port->SpRegOffset,&Data); + + Data = Data | 0x0c; + status = 0; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data); + + Data = Data & ~0x0c; + status = 0; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data); + //Finally enable all interrupts + Data = 0x0; + Data = 0x0c; + status = 0; + status = ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data); + + //clearing rx_disable + Data = 0x0; + status = 0; + status = ATEN2011_get_reg_sync(port,ATEN2011_port->ControlRegOffset,&Data); + Data = Data & ~0x20; + status = 0; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data); + + // rx_negate + Data = 0x0; + status = 0; + status = ATEN2011_get_reg_sync(port,ATEN2011_port->ControlRegOffset,&Data); + Data = Data |0x10; + status = 0; + status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data); + + + /* force low_latency on so that our tty_push actually forces * + * the data through,otherwise it is scheduled, and with * + * high data rates (like with OHCI) data can get lost. */ + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + tty = port->tty; +#endif + if (tty) + tty->low_latency = 1; +/* + printk("port number is %d \n",port->number); + printk("serial number is %d \n",port->serial->minor); + printk("Bulkin endpoint is %d \n",port->bulk_in_endpointAddress); + printk("BulkOut endpoint is %d \n",port->bulk_out_endpointAddress); + printk("Interrupt endpoint is %d \n",port->interrupt_in_endpointAddress); + printk("port's number in the device is %d\n",ATEN2011_port->port_num); +*/ +//////////////////////// +//#ifdef CheckStatusPipe +/* Check to see if we've set up our endpoint info yet * + * (can't set it up in ATEN2011_startup as the structures * + * were not set up at that time.) */ +if(ATEN2011_serial->NoOfOpenPorts==1) +{ + // start the status polling here + ATEN2011_serial->status_polling_started = TRUE; + //if (ATEN2011_serial->interrupt_in_buffer == NULL) + // { + /* If not yet set, Set here */ + ATEN2011_serial->interrupt_in_buffer = serial->port[0]->interrupt_in_buffer; + ATEN2011_serial->interrupt_in_endpoint = serial->port[0]->interrupt_in_endpointAddress; + //printk(" interrupt endpoint:%d \n",ATEN2011_serial->interrupt_in_endpoint); + ATEN2011_serial->interrupt_read_urb = serial->port[0]->interrupt_in_urb; + + /* set up interrupt urb */ + usb_fill_int_urb( \ + ATEN2011_serial->interrupt_read_urb, \ + serial->dev, \ + usb_rcvintpipe(serial->dev,ATEN2011_serial->interrupt_in_endpoint), \ + ATEN2011_serial->interrupt_in_buffer, \ + ATEN2011_serial->interrupt_read_urb->transfer_buffer_length,\ + ATEN2011_interrupt_callback, ATEN2011_serial, \ + ATEN2011_serial->interrupt_read_urb->interval ); + + /* start interrupt read for ATEN2011 * + * will continue as long as ATEN2011 is connected */ + + response = usb_submit_urb (ATEN2011_serial->interrupt_read_urb,GFP_KERNEL); + if (response) + { + DPRINTK("%s - Error %d submitting interrupt urb", __FUNCTION__, response); + } + // else + // printk(" interrupt URB submitted\n"); + + //} + +} +//#endif + + +/////////////////////// + /* see if we've set up our endpoint info yet * + * (can't set it up in ATEN2011_startup as the * + * structures were not set up at that time.) */ + + DPRINTK("port number is %d \n",port->number); + DPRINTK("serial number is %d \n",port->serial->minor); + DPRINTK("Bulkin endpoint is %d \n",port->bulk_in_endpointAddress); + DPRINTK("BulkOut endpoint is %d \n",port->bulk_out_endpointAddress); + DPRINTK("Interrupt endpoint is %d \n",port->interrupt_in_endpointAddress); + DPRINTK("port's number in the device is %d\n",ATEN2011_port->port_num); + ATEN2011_port->bulk_in_buffer = port->bulk_in_buffer; + ATEN2011_port->bulk_in_endpoint = port->bulk_in_endpointAddress; + ATEN2011_port->read_urb = port->read_urb; + ATEN2011_port->bulk_out_endpoint = port->bulk_out_endpointAddress; + + minor = port->serial->minor; + if (minor == SERIAL_TTY_NO_MINOR) + minor = 0; + + /* set up our bulk in urb */ + if((ATEN2011_serial->ATEN2011_spectrum_2or4ports==2)&&(((__u16)port->number - (__u16)(minor)) != 0)) + { + usb_fill_bulk_urb( + ATEN2011_port->read_urb,serial->dev,\ + usb_rcvbulkpipe(serial->dev, (port->bulk_in_endpointAddress+2)),\ + port->bulk_in_buffer,\ + ATEN2011_port->read_urb->transfer_buffer_length, \ + ATEN2011_bulk_in_callback,ATEN2011_port); + } + else + usb_fill_bulk_urb( + ATEN2011_port->read_urb, \ + serial->dev, \ + usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),\ + port->bulk_in_buffer, \ + ATEN2011_port->read_urb->transfer_buffer_length, \ + ATEN2011_bulk_in_callback,ATEN2011_port); + + DPRINTK("ATEN2011_open: bulkin endpoint is %d\n",port->bulk_in_endpointAddress); + response = usb_submit_urb (ATEN2011_port->read_urb,GFP_KERNEL); + if (response) + { + err("%s - Error %d submitting control urb", __FUNCTION__, response); + } + + /* initialize our wait queues */ + init_waitqueue_head(&ATEN2011_port->wait_open); + init_waitqueue_head(&ATEN2011_port->wait_chase); + init_waitqueue_head(&ATEN2011_port->delta_msr_wait); + init_waitqueue_head(&ATEN2011_port->wait_command); + + /* initialize our icount structure */ + memset (&(ATEN2011_port->icount), 0x00, sizeof(ATEN2011_port->icount)); + + /* initialize our port settings */ + ATEN2011_port->shadowMCR = MCR_MASTER_IE; /* Must set to enable ints! */ + ATEN2011_port->chaseResponsePending = FALSE; + /* send a open port command */ + ATEN2011_port->openPending = FALSE; + ATEN2011_port->open = TRUE; + //ATEN2011_change_port_settings(ATEN2011_port,old_termios); + /* Setup termios */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + ATEN2011_set_termios (tty, port, &tmp_termios); +#else + ATEN2011_set_termios (port, &tmp_termios); +#endif + ATEN2011_port->rxBytesAvail = 0x0; + ATEN2011_port->icount.tx=0; + ATEN2011_port->icount.rx=0; + + DPRINTK("\n\nusb_serial serial:%x ATEN2011_port:%x\nATEN2011_serial:%x usb_serial_port port:%x\n\n",(unsigned int)serial,(unsigned int)ATEN2011_port,(unsigned int)ATEN2011_serial,(unsigned int)port); + + + + + return 0; + +} + + +/***************************************************************************** + * ATEN2011_close + * this function is called by the tty driver when a port is closed + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) +#else +static void ATEN2011_close(struct usb_serial_port *port, struct file *filp) +#endif +{ + struct usb_serial *serial; + struct ATENINTL_serial *ATEN2011_serial; + struct ATENINTL_port *ATEN2011_port; + int no_urbs; + __u16 Data; + //__u16 Data1= 20; + + DPRINTK("%s\n","ATEN2011_close:entering..."); + /* MATRIX */ + //ThreadState = 1; + /* MATRIX */ + //printk("Entering... :ATEN2011_close\n"); + if (ATEN2011_port_paranoia_check (port, __FUNCTION__)) + { + DPRINTK("%s","Port Paranoia failed \n"); + return; + } + serial = ATEN2011_get_usb_serial (port, __FUNCTION__); + if (!serial) + { + DPRINTK("%s","Serial Paranoia failed \n"); + return; + } + // take the Adpater and port's private data + ATEN2011_serial = ATEN2011_get_serial_private(serial); + ATEN2011_port = ATEN2011_get_port_private(port); + if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL)) + { + return; + } + if (serial->dev) + { + /* flush and block(wait) until tx is empty*/ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + ATEN2011_block_until_tx_empty(tty, ATEN2011_port); +#else + ATEN2011_block_until_tx_empty(ATEN2011_port); +#endif + } + // kill the ports URB's + for (no_urbs = 0; no_urbs < NUM_URBS;no_urbs++) + usb_kill_urb (ATEN2011_port->write_urb_pool[no_urbs]); + /* Freeing Write URBs*/ + for (no_urbs = 0; no_urbs< NUM_URBS; ++no_urbs) + { + if (ATEN2011_port->write_urb_pool[no_urbs]) + { + if (ATEN2011_port->write_urb_pool[no_urbs]->transfer_buffer) + kfree(ATEN2011_port->write_urb_pool[no_urbs]->transfer_buffer); + usb_free_urb (ATEN2011_port->write_urb_pool[no_urbs]); + } + } + /* While closing port, shutdown all bulk read, write * + * and interrupt read if they exists */ + if (serial->dev) + { + if (ATEN2011_port->write_urb) + { + DPRINTK("%s","Shutdown bulk write\n"); + usb_kill_urb (ATEN2011_port->write_urb); + } + if (ATEN2011_port->read_urb) + { + DPRINTK("%s","Shutdown bulk read\n"); + usb_kill_urb (ATEN2011_port->read_urb); + } + if((&ATEN2011_port->control_urb)) + { + DPRINTK("%s","Shutdown control read\n"); + // usb_kill_urb (ATEN2011_port->control_urb); + + } + } + //if(ATEN2011_port->ctrl_buf != NULL) + //kfree(ATEN2011_port->ctrl_buf); + // decrement the no.of open ports counter of an individual USB-serial adapter. + ATEN2011_serial->NoOfOpenPorts--; + DPRINTK("NoOfOpenPorts in close%d:in port%d\n",ATEN2011_serial->NoOfOpenPorts,port->number); + //printk("the num of ports opend is:%d\n",ATEN2011_serial->NoOfOpenPorts); + if(ATEN2011_serial->NoOfOpenPorts==0) + { + //stop the stus polling here + //printk("disabling the status polling flag to FALSE :\n"); + ATEN2011_serial->status_polling_started = FALSE; + if(ATEN2011_serial->interrupt_read_urb) + { + DPRINTK("%s","Shutdown interrupt_read_urb\n"); + //ATEN2011_serial->interrupt_in_buffer=NULL; + //usb_kill_urb (ATEN2011_serial->interrupt_read_urb); + } + } + if (ATEN2011_port->write_urb) + { + /* if this urb had a transfer buffer already (old tx) free it */ + if (ATEN2011_port->write_urb->transfer_buffer != NULL) + { + kfree(ATEN2011_port->write_urb->transfer_buffer); + } + usb_free_urb(ATEN2011_port->write_urb); + } + // clear the MCR & IER + Data = 0x00; + ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + Data = 0x00; + ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data); + + //ATEN2011_get_Uart_Reg(port,MODEM_CONTROL_REGISTER,&Data1); + //printk("value of MCR after closing the port is : 0x%x\n",Data1); + + ATEN2011_port->open = FALSE; + ATEN2011_port->closePending = FALSE; + ATEN2011_port->openPending = FALSE; + DPRINTK("%s \n","Leaving ............"); + +} + + +/***************************************************************************** + * SerialBreak + * this function sends a break to the port + *****************************************************************************/ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_break(struct tty_struct *tty, int break_state) +#else +static void ATEN2011_break(struct usb_serial_port *port, int break_state) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#endif + unsigned char data; + struct usb_serial *serial; + struct ATENINTL_serial *ATEN2011_serial; + struct ATENINTL_port *ATEN2011_port; + + DPRINTK("%s \n","Entering ..........."); + DPRINTK("ATEN2011_break: Start\n"); + + if (ATEN2011_port_paranoia_check (port, __FUNCTION__)) + { + DPRINTK("%s","Port Paranoia failed \n"); + return; + } + + serial = ATEN2011_get_usb_serial (port, __FUNCTION__); + if (!serial) + { + DPRINTK("%s","Serial Paranoia failed \n"); + return; + } + + ATEN2011_serial = ATEN2011_get_serial_private(serial); + ATEN2011_port = ATEN2011_get_port_private(port); + + if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL)) + { + return; + } + + /* flush and chase */ + ATEN2011_port->chaseResponsePending = TRUE; + + if (serial->dev) + { + + /* flush and block until tx is empty*/ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + ATEN2011_block_until_chase_response(tty, ATEN2011_port); +#else + ATEN2011_block_until_chase_response(ATEN2011_port); +#endif + } + + if(break_state == -1) + { + data = ATEN2011_port->shadowLCR | LCR_SET_BREAK; + } + else + { + data = ATEN2011_port->shadowLCR & ~LCR_SET_BREAK; + } + + ATEN2011_port->shadowLCR = data; + DPRINTK("ATEN2011_break ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR); + ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,ATEN2011_port->shadowLCR); + + return; +} + + +/************************************************************************ + * + * ATEN2011_block_until_chase_response + * + * This function will block the close until one of the following: + * 1. Response to our Chase comes from ATEN2011 + * 2. A timout of 10 seconds without activity has expired + * (1K of ATEN2011 data @ 2400 baud ==> 4 sec to empty) + * + ************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_block_until_chase_response(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port) +#else +static void ATEN2011_block_until_chase_response(struct ATENINTL_port *ATEN2011_port) +#endif +{ + int timeout = 1*HZ; + int wait = 10; + int count ; + + + while (1) + { +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + count = ATEN2011_chars_in_buffer(tty); +#else + count = ATEN2011_chars_in_buffer(ATEN2011_port->port); +#endif + + /* Check for Buffer status */ + if(count<=0) + { + ATEN2011_port->chaseResponsePending = FALSE; + return; + } + + /* Block the thread for a while */ + interruptible_sleep_on_timeout (&ATEN2011_port->wait_chase, timeout); + /* No activity.. count down section */ + wait--; + if (wait == 0) + { + dbg("%s - TIMEOUT", __FUNCTION__); + return; + } + else + { + /* Reset timout value back to seconds */ + wait = 10; + } + } + +} + + +/************************************************************************ + * + * ATEN2011_block_until_tx_empty + * + * This function will block the close until one of the following: + * 1. TX count are 0 + * 2. The ATEN2011 has stopped + * 3. A timout of 3 seconds without activity has expired + * + ************************************************************************/ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_block_until_tx_empty(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port) +#else +static void ATEN2011_block_until_tx_empty(struct ATENINTL_port *ATEN2011_port) +#endif +{ + int timeout = HZ/10; + int wait = 30; + int count; + + while (1) + { + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + count = ATEN2011_chars_in_buffer(tty); +#else + count = ATEN2011_chars_in_buffer(ATEN2011_port->port); +#endif + + /* Check for Buffer status */ + if(count<=0) + { + return; + } + + /* Block the thread for a while */ + interruptible_sleep_on_timeout (&ATEN2011_port->wait_chase, timeout); + + /* No activity.. count down section */ + wait--; + if (wait == 0) + { + dbg("%s - TIMEOUT", __FUNCTION__); + return; + } + else + { + /* Reset timout value back to seconds */ + wait = 30; + } + } +} + +/***************************************************************************** + * ATEN2011_write_room + * this function is called by the tty driver when it wants to know how many + * bytes of data we can accept for a specific port. + * If successful, we return the amount of room that we have for this port + * Otherwise we return a negative error number. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_write_room (struct tty_struct *tty) +#else +static int ATEN2011_write_room (struct usb_serial_port *port) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#endif + int i; + int room = 0; + struct ATENINTL_port *ATEN2011_port; + + +// DPRINTK("%s \n"," ATEN2011_write_room:entering ..........."); + + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + DPRINTK("%s \n"," ATEN2011_write_room:leaving ..........."); + return -1; + } + + ATEN2011_port = ATEN2011_get_port_private(port); + if (ATEN2011_port == NULL) + { + DPRINTK("%s \n","ATEN2011_break:leaving ..........."); + return -1; + } + + for (i = 0; i < NUM_URBS; ++i) + { + if (ATEN2011_port->write_urb_pool[i]->status != -EINPROGRESS) + { + room += URB_TRANSFER_BUFFER_SIZE; + } + } + + dbg("%s - returns %d", __FUNCTION__, room); + return (room); + +} + + +/***************************************************************************** + * ATEN2011_chars_in_buffer + * this function is called by the tty driver when it wants to know how many + * bytes of data we currently have outstanding in the port (data that has + * been written, but hasn't made it out the port yet) + * If successful, we return the number of bytes left to be written in the + * system, + * Otherwise we return a negative error number. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_chars_in_buffer(struct tty_struct *tty) +#else +static int ATEN2011_chars_in_buffer(struct usb_serial_port *port) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#endif + int i; + int chars = 0; + struct ATENINTL_port *ATEN2011_port; + + //DPRINTK("%s \n"," ATEN2011_chars_in_buffer:entering ..........."); + + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return -1; + } + + ATEN2011_port = ATEN2011_get_port_private(port); + if (ATEN2011_port == NULL) + { + DPRINTK("%s \n","ATEN2011_break:leaving ..........."); + return -1; + } + + for (i = 0; i < NUM_URBS; ++i) + { + if (ATEN2011_port->write_urb_pool[i]->status == -EINPROGRESS) + { + chars += URB_TRANSFER_BUFFER_SIZE; + } + } + dbg("%s - returns %d", __FUNCTION__, chars); + return (chars); + +} + + +/***************************************************************************** + * SerialWrite + * this function is called by the tty driver when data should be written to + * the port. + * If successful, we return the number of bytes written, otherwise we + * return a negative error number. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count) +#else +static int ATEN2011_write (struct usb_serial_port *port, const unsigned char *data, int count) +#endif +{ + int status; + int i; + int bytes_sent = 0; + int transfer_size; + int from_user=0; + int minor; + + struct ATENINTL_port *ATEN2011_port; + struct usb_serial *serial; + struct ATENINTL_serial *ATEN2011_serial; + struct urb *urb; + //__u16 Data; + const unsigned char *current_position = data; + unsigned char * data1; + DPRINTK("%s \n","entering ..........."); + //DPRINTK("ATEN2011_write: ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR); + + #ifdef NOTATEN2011 + Data = 0x00; + status=0; + status = ATEN2011_get_Uart_Reg(port,LINE_CONTROL_REGISTER,&Data); + ATEN2011_port->shadowLCR = Data; + DPRINTK("ATEN2011_write: LINE_CONTROL_REGISTER is %x\n",Data); + DPRINTK("ATEN2011_write: ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR); + + //Data = 0x03; + //status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + //ATEN2011_port->shadowLCR=Data;//Need to add later + + Data |= SERIAL_LCR_DLAB; //data latch enable in LCR 0x80 + status = 0; + status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + + //Data = 0x0c; + //status = ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_LSB,Data); + Data = 0x00; + status=0; + status = ATEN2011_get_Uart_Reg(port,DIVISOR_LATCH_LSB,&Data); + DPRINTK("ATEN2011_write:DLL value is %x\n",Data); + + Data = 0x0; + status=0; + status = ATEN2011_get_Uart_Reg(port,DIVISOR_LATCH_MSB,&Data); + DPRINTK("ATEN2011_write:DLM value is %x\n",Data); + + Data = Data & ~SERIAL_LCR_DLAB; + DPRINTK("ATEN2011_write: ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR); + status = 0; + status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + #endif + + if (ATEN2011_port_paranoia_check (port, __FUNCTION__)) + { + DPRINTK("%s","Port Paranoia failed \n"); + return -1; + } + + serial = port->serial; + if (ATEN2011_serial_paranoia_check (serial, __FUNCTION__)) + { + DPRINTK("%s","Serial Paranoia failed \n"); + return -1; + } + + ATEN2011_port = ATEN2011_get_port_private(port); + if(ATEN2011_port==NULL) + { + DPRINTK("%s","ATEN2011_port is NULL\n"); + return -1; + } + + ATEN2011_serial =ATEN2011_get_serial_private(serial); + if(ATEN2011_serial==NULL) + { + DPRINTK("%s","ATEN2011_serial is NULL \n"); + return -1; + } + + + /* try to find a free urb in the list */ + urb = NULL; + + for (i = 0; i < NUM_URBS; ++i) + { + if (ATEN2011_port->write_urb_pool[i]->status != -EINPROGRESS) + { + urb = ATEN2011_port->write_urb_pool[i]; + DPRINTK("\nURB:%d",i); + break; + } + } + + if (urb == NULL) + { + dbg("%s - no more free urbs", __FUNCTION__); + goto exit; + } + + if (urb->transfer_buffer == NULL) + { + urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); + + if (urb->transfer_buffer == NULL) + { + err("%s no more kernel memory...", __FUNCTION__); + goto exit; + } + } + transfer_size = min (count, URB_TRANSFER_BUFFER_SIZE); + + if (from_user) + { + if (copy_from_user (urb->transfer_buffer, current_position, transfer_size)) { + bytes_sent = -EFAULT; + goto exit; + } + } + else + { + memcpy (urb->transfer_buffer, current_position, transfer_size); + } + //usb_serial_debug_data (__FILE__, __FUNCTION__, transfer_size, urb->transfer_buffer); + + /* fill urb with data and submit */ + minor = port->serial->minor; + if (minor == SERIAL_TTY_NO_MINOR); + minor = 0; + if((ATEN2011_serial->ATEN2011_spectrum_2or4ports==2)&&(((__u16)port->number - (__u16)(minor)) != 0)) + { + usb_fill_bulk_urb (urb, + ATEN2011_serial->serial->dev, + usb_sndbulkpipe(ATEN2011_serial->serial->dev, + (port->bulk_out_endpointAddress)+2), + urb->transfer_buffer, + transfer_size, + ATEN2011_bulk_out_data_callback, + ATEN2011_port); + } + else + + + + usb_fill_bulk_urb (urb, + ATEN2011_serial->serial->dev, + usb_sndbulkpipe(ATEN2011_serial->serial->dev, + port->bulk_out_endpointAddress), + urb->transfer_buffer, + transfer_size, + ATEN2011_bulk_out_data_callback, + ATEN2011_port); + + data1=urb->transfer_buffer; + DPRINTK("\nbulkout endpoint is %d",port->bulk_out_endpointAddress); + //for(i=0;i < urb->actual_length;i++) + // DPRINTK("Data is %c\n ",data1[i]); + + /* send it down the pipe */ + status = usb_submit_urb(urb,GFP_ATOMIC); + + if (status) + { + err("%s - usb_submit_urb(write bulk) failed with status = %d", __FUNCTION__, status); + bytes_sent = status; + goto exit; + } + bytes_sent = transfer_size; + ATEN2011_port->icount.tx += transfer_size; + DPRINTK("ATEN2011_port->icount.tx is %d:\n",ATEN2011_port->icount.tx); +exit: + + return bytes_sent; + +} + + +/***************************************************************************** + * SerialThrottle + * this function is called by the tty driver when it wants to stop the data + * being read from the port. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_throttle(struct tty_struct *tty) +#else +static void ATEN2011_throttle(struct usb_serial_port *port) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#else + struct tty_struct *tty; +#endif + struct ATENINTL_port *ATEN2011_port; + int status; + + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return; + } + + DPRINTK("- port %d\n", port->number); + + ATEN2011_port = ATEN2011_get_port_private(port); + + if (ATEN2011_port == NULL) + return; + + if (!ATEN2011_port->open) + { + DPRINTK("%s\n","port not opened"); + return; + } + + DPRINTK("%s","Entering .......... \n"); + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + tty = port->tty; +#endif + if (!tty) + { + dbg ("%s - no tty available", __FUNCTION__); + return; + } + + /* if we are implementing XON/XOFF, send the stop character */ + if (I_IXOFF(tty)) + { + unsigned char stop_char = STOP_CHAR(tty); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + status = ATEN2011_write(tty, port, &stop_char, 1); //FC4 +#else + status = ATEN2011_write(port, &stop_char, 1); //FC4 +#endif + if (status <= 0) + { + return; + } + } + + /* if we are implementing RTS/CTS, toggle that line */ + if (tty->termios->c_cflag & CRTSCTS) + { + ATEN2011_port->shadowMCR &= ~MCR_RTS; + status=0; + status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,ATEN2011_port->shadowMCR); + + if (status < 0) + { + return; + } + } + + return; +} + + +/***************************************************************************** + * ATEN2011_unthrottle + * this function is called by the tty driver when it wants to resume the data + * being read from the port (called after SerialThrottle is called) + *****************************************************************************/ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_unthrottle (struct tty_struct *tty) +#else +static void ATEN2011_unthrottle (struct usb_serial_port *port) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#else + struct tty_struct *tty; +#endif + int status; + struct ATENINTL_port *ATEN2011_port = ATEN2011_get_port_private(port); + + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return; + } + + if (ATEN2011_port == NULL) + return; + + if (!ATEN2011_port->open) { + dbg("%s - port not opened", __FUNCTION__); + return; + } + + DPRINTK("%s","Entering .......... \n"); + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + tty = port->tty; +#endif + if (!tty) + { + dbg ("%s - no tty available", __FUNCTION__); + return; + } + + /* if we are implementing XON/XOFF, send the start character */ + if (I_IXOFF(tty)) + { + unsigned char start_char = START_CHAR(tty); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + status = ATEN2011_write (tty, port, &start_char, 1); //FC4 +#else + status = ATEN2011_write (port, &start_char, 1); //FC4 +#endif + if (status <= 0) + { + return; + } + } + + /* if we are implementing RTS/CTS, toggle that line */ + if (tty->termios->c_cflag & CRTSCTS) + { + ATEN2011_port->shadowMCR |= MCR_RTS; + status=0; + status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,ATEN2011_port->shadowMCR); + if (status < 0) + { + return; + } + } + + return; +} + + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file) +#else +static int ATEN2011_tiocmget(struct usb_serial_port *port, struct file *file) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#endif + //struct ti_port *tport = usb_get_serial_port_data(port); + struct ATENINTL_port *ATEN2011_port; + unsigned int result; + __u16 msr; + __u16 mcr; + //unsigned int mcr; + int status=0; + ATEN2011_port = ATEN2011_get_port_private(port); + + DPRINTK("%s - port %d", __FUNCTION__, port->number); + + if (ATEN2011_port == NULL) + return -ENODEV; + + status=ATEN2011_get_Uart_Reg(port,MODEM_STATUS_REGISTER,&msr); + status=ATEN2011_get_Uart_Reg(port,MODEM_CONTROL_REGISTER,&mcr); +// mcr = ATEN2011_port->shadowMCR; +// COMMENT2: the Fallowing three line are commented for updating only MSR values + result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) + | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) + | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0) + | ((msr & ATEN2011_MSR_CTS) ? TIOCM_CTS : 0) + | ((msr & ATEN2011_MSR_CD) ? TIOCM_CAR : 0) + | ((msr & ATEN2011_MSR_RI) ? TIOCM_RI : 0) + | ((msr & ATEN2011_MSR_DSR) ? TIOCM_DSR : 0); + + DPRINTK("%s - 0x%04X", __FUNCTION__, result); + + return result; +} + + + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file, + unsigned int set, unsigned int clear) +#else +static int ATEN2011_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#endif + struct ATENINTL_port *ATEN2011_port; + //struct ti_port *tport = usb_get_serial_port_data(port); + unsigned int mcr; + unsigned int status; + + DPRINTK("%s - port %d", __FUNCTION__, port->number); + + ATEN2011_port = ATEN2011_get_port_private(port); + + if (ATEN2011_port == NULL) + return -ENODEV; + + + + mcr = ATEN2011_port->shadowMCR; + if (clear & TIOCM_RTS) + mcr &= ~MCR_RTS; + if (clear & TIOCM_DTR) + mcr &= ~MCR_DTR; + if (clear & TIOCM_LOOP) + mcr &= ~MCR_LOOPBACK; + + if (set & TIOCM_RTS) + mcr |= MCR_RTS; + if (set & TIOCM_DTR) + mcr |= MCR_DTR; + if (set & TIOCM_LOOP) + mcr |= MCR_LOOPBACK; + + ATEN2011_port->shadowMCR = mcr; + + status=0; + status = ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,mcr); + if(status <0) + { + DPRINTK("setting MODEM_CONTROL_REGISTER Failed\n"); + return -1; + } + + return 0; +} + + + + + + + +/***************************************************************************** + * SerialSetTermios + * this function is called by the tty driver when it wants to change the termios structure + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) +#else +static void ATEN2011_set_termios(struct usb_serial_port *port, struct ktermios *old_termios) +#endif +{ + int status; + unsigned int cflag; + struct usb_serial *serial; + struct ATENINTL_port *ATEN2011_port; +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + struct tty_struct *tty; +#endif + DPRINTK("ATEN2011_set_termios: START\n"); + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return; + } + + serial = port->serial; + + if(ATEN2011_serial_paranoia_check(serial,__FUNCTION__) ) + { + DPRINTK("%s","Invalid Serial \n"); + return; + } + + ATEN2011_port = ATEN2011_get_port_private(port); + + if (ATEN2011_port == NULL) + return; + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + tty = port->tty; + + if (!port->tty || !port->tty->termios) + { + dbg ("%s - no tty or termios", __FUNCTION__); + return; + } +#endif + + if (!ATEN2011_port->open) + { + dbg("%s - port not opened", __FUNCTION__); + return; + } + + DPRINTK("%s\n","setting termios - "); + + cflag = tty->termios->c_cflag; + + if (!cflag) + { + DPRINTK("%s %s\n",__FUNCTION__,"cflag is NULL"); + return; + } + + /* check that they really want us to change something */ + if (old_termios) + { + if ((cflag == old_termios->c_cflag) && + (RELEVANT_IFLAG(tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) + { + DPRINTK("%s\n","Nothing to change"); + return; + } + } + + dbg("%s - clfag %08x iflag %08x", __FUNCTION__, + tty->termios->c_cflag, + RELEVANT_IFLAG(tty->termios->c_iflag)); + + if (old_termios) + { + dbg("%s - old clfag %08x old iflag %08x", __FUNCTION__, + old_termios->c_cflag, + RELEVANT_IFLAG(old_termios->c_iflag)); + } + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* change the port settings to the new ones specified */ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + ATEN2011_change_port_settings(tty, ATEN2011_port, old_termios); +#else + ATEN2011_change_port_settings(ATEN2011_port, old_termios); +#endif + + if(!ATEN2011_port->read_urb) + { + DPRINTK("%s","URB KILLED !!!!!\n"); + return; + } + + if(ATEN2011_port->read_urb->status!=-EINPROGRESS) + { + ATEN2011_port->read_urb->dev = serial->dev; + status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC); + if (status) + { + DPRINTK(" usb_submit_urb(read bulk) failed, status = %d", status); + } + } + return; +} + +/* +static void ATEN2011_break_ctl( struct usb_serial_port *port, int break_state ) +{ + //struct usb_serial *serial = port->serial; + +// if (BSA_USB_CMD(BELKIN_SA_SET_BREAK_REQUEST, break_state ? 1 : 0) < 0) + // err("Set break_ctl %d", break_state); +} +*/ + + + +/***************************************************************************** + * get_lsr_info - get line status register info + * + * Purpose: Let user call ioctl() to get info when the UART physically + * is emptied. On bus types like RS485, the transmitter must + * release the bus after transmitting. This must be done when + * the transmit shift register is empty, not be done when the + * transmit holding register is empty. This functionality + * allows an RS485 driver to be written in user space. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int get_lsr_info(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, unsigned int *value) +#else +static int get_lsr_info(struct ATENINTL_port *ATEN2011_port, unsigned int *value) +#endif +{ + int count; + unsigned int result = 0; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + count = ATEN2011_chars_in_buffer(tty); +#else + count = ATEN2011_chars_in_buffer(ATEN2011_port->port); +#endif + if(count == 0) + { + dbg("%s -- Empty", __FUNCTION__); + result = TIOCSER_TEMT; + } + + if (copy_to_user(value, &result, sizeof(int))) + return -EFAULT; + return 0; +} + +/***************************************************************************** + * get_number_bytes_avail - get number of bytes available + * + * Purpose: Let user call ioctl to get the count of number of bytes available. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int get_number_bytes_avail(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, unsigned int *value) +#else +static int get_number_bytes_avail(struct ATENINTL_port *ATEN2011_port, unsigned int *value) +#endif +{ + unsigned int result = 0; +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + struct tty_struct *tty = ATEN2011_port->port->tty; +#endif + + if (!tty) + return -ENOIOCTLCMD; + + result = tty->read_cnt; + + dbg("%s(%d) = %d", __FUNCTION__, ATEN2011_port->port->number, result); + if (copy_to_user(value, &result, sizeof(int))) + return -EFAULT; + + return -ENOIOCTLCMD; +} + + +/***************************************************************************** + * set_modem_info + * function to set modem info + *****************************************************************************/ + +static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd, unsigned int *value) +{ + unsigned int mcr ; + unsigned int arg; + __u16 Data; + int status; + struct usb_serial_port *port; + + if (ATEN2011_port == NULL) + return -1; + + + port = (struct usb_serial_port*)ATEN2011_port->port; + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return -1; + } + + mcr = ATEN2011_port->shadowMCR; + + if (copy_from_user(&arg, value, sizeof(int))) + return -EFAULT; + + switch (cmd) { + case TIOCMBIS: + if (arg & TIOCM_RTS) + mcr |= MCR_RTS; + if (arg & TIOCM_DTR) + mcr |= MCR_RTS; + if (arg & TIOCM_LOOP) + mcr |= MCR_LOOPBACK; + break; + + case TIOCMBIC: + if (arg & TIOCM_RTS) + mcr &= ~MCR_RTS; + if (arg & TIOCM_DTR) + mcr &= ~MCR_RTS; + if (arg & TIOCM_LOOP) + mcr &= ~MCR_LOOPBACK; + break; + + case TIOCMSET: + /* turn off the RTS and DTR and LOOPBACK + * and then only turn on what was asked to */ + mcr &= ~(MCR_RTS | MCR_DTR | MCR_LOOPBACK); + mcr |= ((arg & TIOCM_RTS) ? MCR_RTS : 0); + mcr |= ((arg & TIOCM_DTR) ? MCR_DTR : 0); + mcr |= ((arg & TIOCM_LOOP) ? MCR_LOOPBACK : 0); + break; + } + + ATEN2011_port->shadowMCR = mcr; + + Data = ATEN2011_port->shadowMCR; + status=0; + status = ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + if(status <0) + { + DPRINTK("setting MODEM_CONTROL_REGISTER Failed\n"); + return -1; + } + + return 0; +} + +/***************************************************************************** + * get_modem_info + * function to get modem info + *****************************************************************************/ + +static int get_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int *value) +{ + unsigned int result = 0; + __u16 msr; + unsigned int mcr = ATEN2011_port->shadowMCR; + int status=0; + status=ATEN2011_get_Uart_Reg(ATEN2011_port->port,MODEM_STATUS_REGISTER,&msr); + result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ + | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ + | ((msr & ATEN2011_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ + | ((msr & ATEN2011_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ + | ((msr & ATEN2011_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ + | ((msr & ATEN2011_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ + + + dbg("%s -- %x", __FUNCTION__, result); + + if (copy_to_user(value, &result, sizeof(int))) + return -EFAULT; + return 0; +} + +/***************************************************************************** + * get_serial_info + * function to get information about serial port + *****************************************************************************/ + +static int get_serial_info(struct ATENINTL_port *ATEN2011_port, struct serial_struct * retinfo) +{ + struct serial_struct tmp; + + if (ATEN2011_port == NULL) + return -1; + + + if (!retinfo) + return -EFAULT; + + memset(&tmp, 0, sizeof(tmp)); + + tmp.type = PORT_16550A; + tmp.line = ATEN2011_port->port->serial->minor; + if (tmp.line == SERIAL_TTY_NO_MINOR) + tmp.line = 0; + tmp.port = ATEN2011_port->port->number; + tmp.irq = 0; + tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; + tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE; + tmp.baud_base = 9600; + tmp.close_delay = 5*HZ; + tmp.closing_wait = 30*HZ; + + + if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) + return -EFAULT; + return 0; +} + +/***************************************************************************** + * SerialIoctl + * this function handles any ioctl calls to the driver + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) +#else +static int ATEN2011_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + struct usb_serial_port *port = tty->driver_data; +#else + struct tty_struct *tty; +#endif + struct ATENINTL_port *ATEN2011_port; + struct async_icount cnow; + struct async_icount cprev; + struct serial_icounter_struct icount; + int ATENret=0; + //int retval; + //struct tty_ldisc *ld; + + //printk("%s - port %d, cmd = 0x%x\n", __FUNCTION__, port->number, cmd); + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return -1; + } + + ATEN2011_port = ATEN2011_get_port_private(port); +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + tty = ATEN2011_port->port->tty; +#endif + + if (ATEN2011_port == NULL) + return -1; + + dbg("%s - port %d, cmd = 0x%x", __FUNCTION__, port->number, cmd); + + switch (cmd) + { + /* return number of bytes available */ + + case TIOCINQ: + dbg("%s (%d) TIOCINQ", __FUNCTION__, port->number); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + return get_number_bytes_avail(tty, ATEN2011_port, (unsigned int *) arg); +#else + return get_number_bytes_avail(ATEN2011_port, (unsigned int *) arg); +#endif + break; + + case TIOCOUTQ: + dbg("%s (%d) TIOCOUTQ", __FUNCTION__, port->number); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + return put_user(ATEN2011_chars_in_buffer(tty), + (int __user *) arg); +#else + return put_user(tty->driver->ops->chars_in_buffer ? + tty->driver->ops->chars_in_buffer(tty) : 0, + (int __user *) arg); +#endif + break; + + /* //2.6.17 block + case TCFLSH: + retval = tty_check_change(tty); + if (retval) + return retval; + + ld = tty_ldisc_ref(tty); + switch (arg) { + case TCIFLUSH: + if (ld && ld->flush_buffer) + ld->flush_buffer(tty); + break; + case TCIOFLUSH: + if (ld && ld->flush_buffer) + ld->flush_buffer(tty); + // fall through + case TCOFLUSH: + if (tty->driver->flush_buffer) + tty->driver->flush_buffer(tty); + break; + default: + tty_ldisc_deref(ld); + return -EINVAL; + } + tty_ldisc_deref(ld); + return 0; + */ + case TIOCSERGETLSR: + dbg("%s (%d) TIOCSERGETLSR", __FUNCTION__, port->number); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + return get_lsr_info(tty, ATEN2011_port, (unsigned int *) arg); +#else + return get_lsr_info(ATEN2011_port, (unsigned int *) arg); +#endif + return 0; + + case TIOCMBIS: + case TIOCMBIC: + case TIOCMSET: + dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__, port->number); + // printk("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__, port->number); + ATENret=set_modem_info(ATEN2011_port, cmd, (unsigned int *) arg); + // printk(" %s: ret:%d\n",__FUNCTION__,ATENret); + return ATENret; + + case TIOCMGET: + dbg("%s (%d) TIOCMGET", __FUNCTION__, port->number); + return get_modem_info(ATEN2011_port, (unsigned int *) arg); + + case TIOCGSERIAL: + dbg("%s (%d) TIOCGSERIAL", __FUNCTION__, port->number); + return get_serial_info(ATEN2011_port, (struct serial_struct *) arg); + + case TIOCSSERIAL: + dbg("%s (%d) TIOCSSERIAL", __FUNCTION__, port->number); + break; + + case TIOCMIWAIT: + dbg("%s (%d) TIOCMIWAIT", __FUNCTION__, port->number); + cprev = ATEN2011_port->icount; + while (1) { + //interruptible_sleep_on(&ATEN2011_port->delta_msr_wait); + // ATEN2011_port->delta_msr_cond=0; + //wait_event_interruptible(ATEN2011_port->delta_msr_wait,(ATEN2011_port->delta_msr_cond==1)); + + /* see if a signal did it */ + if (signal_pending(current)) + return -ERESTARTSYS; + cnow = ATEN2011_port->icount; + if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && + cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) + return -EIO; /* no change => error */ + if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || + ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || + ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || + ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { + return 0; + } + cprev = cnow; + } + /* NOTREACHED */ + break; + + case TIOCGICOUNT: + cnow = ATEN2011_port->icount; + icount.cts = cnow.cts; + icount.dsr = cnow.dsr; + icount.rng = cnow.rng; + icount.dcd = cnow.dcd; + icount.rx = cnow.rx; + icount.tx = cnow.tx; + icount.frame = cnow.frame; + icount.overrun = cnow.overrun; + icount.parity = cnow.parity; + icount.brk = cnow.brk; + icount.buf_overrun = cnow.buf_overrun; + + dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __FUNCTION__, port->number, icount.rx, icount.tx ); + if (copy_to_user((void *)arg, &icount, sizeof(icount))) + return -EFAULT; + return 0; + + case TIOCEXBAUD: + return 0; + default: + break; + } + + return -ENOIOCTLCMD; +} + + +/***************************************************************************** + * ATEN2011_send_cmd_write_baud_rate + * this function sends the proper command to change the baud rate of the + * specified port. + *****************************************************************************/ + +static int ATEN2011_send_cmd_write_baud_rate (struct ATENINTL_port *ATEN2011_port, int baudRate) +{ + int divisor = 0; + int status; + __u16 Data; + unsigned char number ; + __u16 clk_sel_val; + struct usb_serial_port *port; + int minor; + + if (ATEN2011_port == NULL) + return -1; + + port = (struct usb_serial_port*)ATEN2011_port->port; + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return -1; + } + + if(ATEN2011_serial_paranoia_check(port->serial,__FUNCTION__) ) + { + DPRINTK("%s","Invalid Serial \n"); + return -1; + } + + + DPRINTK("%s","Entering .......... \n"); + + minor = ATEN2011_port->port->serial->minor; + if (minor == SERIAL_TTY_NO_MINOR) + minor = 0; + number = ATEN2011_port->port->number - minor; + + dbg("%s - port = %d, baud = %d", __FUNCTION__, ATEN2011_port->port->number, baudRate); + //reset clk_uart_sel in spregOffset + if(baudRate >115200) + { + #ifdef HW_flow_control + //NOTE: need to see the pther register to modify + //setting h/w flow control bit to 1; + status=0; + //Data = ATEN2011_port->shadowMCR ; + Data = 0x2b; + ATEN2011_port->shadowMCR=Data; + status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + if(status<0) + { + DPRINTK("Writing spreg failed in set_serial_baud\n"); + return -1; + } + #endif + + } + else + { + #ifdef HW_flow_control + //setting h/w flow control bit to 0; + status=0; + //Data = ATEN2011_port->shadowMCR ; + Data = 0xb; + ATEN2011_port->shadowMCR=Data; + status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + if(status<0) + { + DPRINTK("Writing spreg failed in set_serial_baud\n"); + return -1; + } + + #endif + + + } + + + if(1)//baudRate <= 115200) + { + clk_sel_val=0x0; + Data=0x0; + status=0; + status = ATEN2011_calc_baud_rate_divisor (baudRate, &divisor,&clk_sel_val); + status= ATEN2011_get_reg_sync(port,ATEN2011_port->SpRegOffset,&Data); + if(status<0) + { + DPRINTK("reading spreg failed in set_serial_baud\n"); + return -1; + } + Data = (Data & 0x8f)|clk_sel_val; + status=0; + status= ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data); + if(status<0) + { + DPRINTK("Writing spreg failed in set_serial_baud\n"); + return -1; + } + /* Calculate the Divisor */ + + + if (status) + { + err("%s - bad baud rate", __FUNCTION__); + DPRINTK("%s\n","bad baud rate"); + return status; + } + /* Enable access to divisor latch */ + Data = ATEN2011_port->shadowLCR | SERIAL_LCR_DLAB; + ATEN2011_port->shadowLCR = Data; + ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + + /* Write the divisor */ + Data = LOW8 (divisor);//: commented to test + DPRINTK("set_serial_baud Value to write DLL is %x\n",Data); + ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_LSB,Data); + + Data = HIGH8 (divisor); //: commented to test + DPRINTK("set_serial_baud Value to write DLM is %x\n",Data); + ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_MSB,Data); + + /* Disable access to divisor latch */ + Data = ATEN2011_port->shadowLCR & ~SERIAL_LCR_DLAB; + ATEN2011_port->shadowLCR = Data; + ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + + } + + return status; +} + + + +/***************************************************************************** + * ATEN2011_calc_baud_rate_divisor + * this function calculates the proper baud rate divisor for the specified + * baud rate. + *****************************************************************************/ +static int ATEN2011_calc_baud_rate_divisor (int baudRate, int *divisor,__u16 *clk_sel_val) +{ + //int i; + //__u16 custom,round1, round; + + dbg("%s - %d", __FUNCTION__, baudRate); + + if(baudRate <=115200) + { + *divisor = 115200/baudRate; + *clk_sel_val = 0x0; + } + if((baudRate > 115200) && (baudRate <= 230400)) + { + *divisor = 230400/baudRate; + *clk_sel_val=0x10; + } + else if((baudRate > 230400) && (baudRate <= 403200)) + { + *divisor = 403200/baudRate; + *clk_sel_val=0x20; + } + else if((baudRate > 403200) && (baudRate <= 460800)) + { + *divisor = 460800/baudRate; + *clk_sel_val=0x30; + } + else if((baudRate > 460800) && (baudRate <= 806400)) + { + *divisor = 806400/baudRate; + *clk_sel_val=0x40; + } + else if((baudRate >806400) && (baudRate <= 921600)) + { + *divisor = 921600/baudRate; + *clk_sel_val=0x50; + } + else if((baudRate > 921600) && (baudRate <= 1572864)) + { + *divisor = 1572864/baudRate; + *clk_sel_val=0x60; + } + else if((baudRate > 1572864) && (baudRate <= 3145728)) + { + *divisor = 3145728/baudRate; + *clk_sel_val=0x70; + } + return 0; + + #ifdef NOTATEN2011 + + for (i = 0; i < NUM_ENTRIES(ATEN2011_divisor_table); i++) + { + if ( ATEN2011_divisor_table[i].BaudRate == baudrate ) + { + *divisor = ATEN2011_divisor_table[i].Divisor; + return 0; + } + } + + /* After trying for all the standard baud rates * + * Try calculating the divisor for this baud rate */ + + if (baudrate > 75 && baudrate < 230400) + { + /* get the divisor */ + custom = (__u16)(230400L / baudrate); + + /* Check for round off */ + round1 = (__u16)(2304000L / baudrate); + round = (__u16)(round1 - (custom * 10)); + if (round > 4) { + custom++; + } + *divisor = custom; + + DPRINTK(" Baud %d = %d\n",baudrate, custom); + return 0; + } + + DPRINTK("%s\n"," Baud calculation Failed..."); + return -1; + #endif +} + + + +/***************************************************************************** + * ATEN2011_change_port_settings + * This routine is called to set the UART on the device to match + * the specified new settings. + *****************************************************************************/ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_change_port_settings(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios) +#else +static void ATEN2011_change_port_settings(struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios) +#endif +{ +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + struct tty_struct *tty; +#endif + int baud; + unsigned cflag; + unsigned iflag; + __u8 mask = 0xff; + __u8 lData; + __u8 lParity; + __u8 lStop; + int status; + __u16 Data; + struct usb_serial_port *port; + struct usb_serial *serial; + + if (ATEN2011_port == NULL) + return ; + + port = (struct usb_serial_port *)ATEN2011_port->port; + + if(ATEN2011_port_paranoia_check(port,__FUNCTION__) ) + { + DPRINTK("%s","Invalid port \n"); + return ; + } + + if(ATEN2011_serial_paranoia_check(port->serial,__FUNCTION__) ) + { + DPRINTK("%s","Invalid Serial \n"); + return ; + } + + serial = port->serial; + + dbg("%s - port %d", __FUNCTION__, ATEN2011_port->port->number); + + if ((!ATEN2011_port->open) && (!ATEN2011_port->openPending)) + { + dbg("%s - port not opened", __FUNCTION__); + return; + } + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) + tty = ATEN2011_port->port->tty; +#endif + + if ((!tty) || (!tty->termios)) + { + dbg("%s - no tty structures", __FUNCTION__); + return; + } + + DPRINTK("%s","Entering .......... \n"); + + lData = LCR_BITS_8; + lStop = LCR_STOP_1; + lParity = LCR_PAR_NONE; + + cflag = tty->termios->c_cflag; + iflag = tty->termios->c_iflag; + + /* Change the number of bits */ + +//COMMENT1: the below Line"if(cflag & CSIZE)" is added for the errors we get for serial loop data test i.e serial_loopback.pl -v + //if(cflag & CSIZE) + { + switch (cflag & CSIZE) + { + case CS5: lData = LCR_BITS_5; + mask = 0x1f; + break; + + case CS6: lData = LCR_BITS_6; + mask = 0x3f; + break; + + case CS7: lData = LCR_BITS_7; + mask = 0x7f; + break; + default: + case CS8: lData = LCR_BITS_8; + break; + } + } + /* Change the Parity bit */ + if (cflag & PARENB) + { + if (cflag & PARODD) + { + lParity = LCR_PAR_ODD; + dbg("%s - parity = odd", __FUNCTION__); + } + else + { + lParity = LCR_PAR_EVEN; + dbg("%s - parity = even", __FUNCTION__); + } + + } + else + { + dbg("%s - parity = none", __FUNCTION__); + } + + if(cflag & CMSPAR) + { + lParity = lParity | 0x20; + } + + /* Change the Stop bit */ + if (cflag & CSTOPB) + { + lStop = LCR_STOP_2; + dbg("%s - stop bits = 2", __FUNCTION__); + } + else + { + lStop = LCR_STOP_1; + dbg("%s - stop bits = 1", __FUNCTION__); + } + + + /* Update the LCR with the correct value */ + ATEN2011_port->shadowLCR &= ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK); + ATEN2011_port->shadowLCR |= (lData | lParity | lStop); + + ATEN2011_port->validDataMask = mask; + DPRINTK("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR); + /* Disable Interrupts */ + Data = 0x00; + ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data); + + + Data = 0x00; + ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data); + + Data = 0xcf; + ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data); + + /* Send the updated LCR value to the ATEN2011 */ + Data = ATEN2011_port->shadowLCR; + + ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data); + + + Data = 0x00b; + ATEN2011_port->shadowMCR = Data; + ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + Data = 0x00b; + ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + + /* set up the MCR register and send it to the ATEN2011 */ + + ATEN2011_port->shadowMCR = MCR_MASTER_IE; + if (cflag & CBAUD) + { + ATEN2011_port->shadowMCR |= (MCR_DTR | MCR_RTS); + } + + + if (cflag & CRTSCTS) + { + ATEN2011_port->shadowMCR |= (MCR_XON_ANY); + + + } + else + { + ATEN2011_port->shadowMCR &= ~(MCR_XON_ANY); + } + + + Data = ATEN2011_port->shadowMCR; + ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data); + + + + /* Determine divisor based on baud rate */ + baud = tty_get_baud_rate(tty); + + if (!baud) + { + /* pick a default, any default... */ + DPRINTK("%s\n","Picked default baud..."); + baud = 9600; + } + + + dbg("%s - baud rate = %d", __FUNCTION__, baud); + status = ATEN2011_send_cmd_write_baud_rate (ATEN2011_port, baud); + + /* Enable Interrupts */ + Data = 0x0c; + ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data); + + if(ATEN2011_port->read_urb->status!=-EINPROGRESS) + { + ATEN2011_port->read_urb->dev = serial->dev; + + status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC); + + if (status) + { + DPRINTK(" usb_submit_urb(read bulk) failed, status = %d", status); + } + } + //wake_up(&ATEN2011_port->delta_msr_wait); + //ATEN2011_port->delta_msr_cond=1; + DPRINTK("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is End %x\n",ATEN2011_port->shadowLCR); + + return; +} + + +static int ATEN2011_calc_num_ports(struct usb_serial *serial) +{ + + __u16 Data=0x00; + int ret =0; + int ATEN2011_2or4ports; + ret = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),\ + ATEN_RDREQ,ATEN_RD_RTYPE,0,GPIO_REGISTER,&Data,VENDOR_READ_LENGTH,ATEN_WDR_TIMEOUT); + + //printk("ATEN2011_calc_num_ports GPIO is %x\n",Data); + + +/* ghostgum: here is where the problem appears to bet */ +/* Which of the following are needed? */ +/* Greg used the serial->type->num_ports=2 */ +/* But the code in the ATEN2011_open relies on serial->num_ports=2 */ + if((Data&0x01)==0) + { + ATEN2011_2or4ports=2; + serial->type->num_ports=2; + serial->num_ports=2; + } + //else if(serial->interface->cur_altsetting->desc.bNumEndpoints == 9) + else + { + ATEN2011_2or4ports =4; + serial->type->num_ports=4; + serial->num_ports=4; + + } + + return ATEN2011_2or4ports; +} + + +/**************************************************************************** + * ATEN2011_startup + ****************************************************************************/ + +static int ATEN2011_startup (struct usb_serial *serial) +{ + struct ATENINTL_serial *ATEN2011_serial; + struct ATENINTL_port *ATEN2011_port; + struct usb_device *dev; + int i,status; + int minor; + + __u16 Data; + DPRINTK("%s \n"," ATEN2011_startup :entering.........."); + + if(!serial) + { + DPRINTK("%s\n","Invalid Handler"); + return -1; + } + + dev = serial->dev; + + DPRINTK("%s\n","Entering..."); + + /* create our private serial structure */ + ATEN2011_serial = kzalloc (sizeof(struct ATENINTL_serial), GFP_KERNEL); + if (ATEN2011_serial == NULL) + { + err("%s - Out of memory", __FUNCTION__); + return -ENOMEM; + } + + /* resetting the private structure field values to zero */ + memset (ATEN2011_serial, 0, sizeof(struct ATENINTL_serial)); + + ATEN2011_serial->serial = serial; + //initilize status polling flag to FALSE + ATEN2011_serial->status_polling_started = FALSE; + + ATEN2011_set_serial_private(serial,ATEN2011_serial); + ATEN2011_serial->ATEN2011_spectrum_2or4ports = ATEN2011_calc_num_ports(serial); + /* we set up the pointers to the endpoints in the ATEN2011_open * + * function, as the structures aren't created yet. */ + + /* set up port private structures */ + for (i = 0; i < serial->num_ports; ++i) + { + ATEN2011_port = kmalloc(sizeof(struct ATENINTL_port), GFP_KERNEL); + if (ATEN2011_port == NULL) + { + err("%s - Out of memory", __FUNCTION__); + ATEN2011_set_serial_private(serial,NULL); + kfree(ATEN2011_serial); + return -ENOMEM; + } + memset(ATEN2011_port, 0, sizeof(struct ATENINTL_port)); + + + /* Initialize all port interrupt end point to port 0 int endpoint * + * Our device has only one interrupt end point comman to all port */ + + + + // serial->port[i]->interrupt_in_endpointAddress = serial->port[0]->interrupt_in_endpointAddress; + + + ATEN2011_port->port = serial->port[i]; +// + ATEN2011_set_port_private(serial->port[i],ATEN2011_port); + + + minor = serial->port[i] ->serial->minor; + if (minor == SERIAL_TTY_NO_MINOR) + minor = 0; + ATEN2011_port->port_num=((serial->port[i]->number - minor)+1); + + ATEN2011_port->AppNum = (((__u16)serial->port[i]->number - \ + (__u16)(minor))+1)<<8; + + if(ATEN2011_port->port_num ==1) + { + ATEN2011_port->SpRegOffset =0x0; + ATEN2011_port->ControlRegOffset =0x1; + ATEN2011_port->DcrRegOffset =0x4 ; + //ATEN2011_port->ClkSelectRegOffset = ; + } + else if((ATEN2011_port->port_num ==2)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4)) + { + ATEN2011_port->SpRegOffset =0x8; + ATEN2011_port->ControlRegOffset =0x9; + ATEN2011_port->DcrRegOffset =0x16; + //ATEN2011_port->ClkSelectRegOffset = ; + } + else if((ATEN2011_port->port_num ==2)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==2)) + { + ATEN2011_port->SpRegOffset =0xa; + ATEN2011_port->ControlRegOffset =0xb; + ATEN2011_port->DcrRegOffset =0x19; + //ATEN2011_port->ClkSelectRegOffset = ; + } + else if((ATEN2011_port->port_num ==3)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4)) + { + ATEN2011_port->SpRegOffset =0xa; + ATEN2011_port->ControlRegOffset =0xb; + ATEN2011_port->DcrRegOffset =0x19; + //ATEN2011_port->ClkSelectRegOffset = ; + } + else if((ATEN2011_port->port_num ==4)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4)) + { + ATEN2011_port->SpRegOffset =0xc; + ATEN2011_port->ControlRegOffset =0xd; + ATEN2011_port->DcrRegOffset =0x1c ; + //ATEN2011_port->ClkSelectRegOffset = ; + } + ATEN2011_Dump_serial_port(ATEN2011_port); + + ATEN2011_set_port_private(serial->port[i],ATEN2011_port); + + + //enable rx_disable bit in control register + + status=ATEN2011_get_reg_sync(serial->port[i],ATEN2011_port->ControlRegOffset,&Data); + if(status<0) { + DPRINTK("Reading ControlReg failed status-0x%x\n", status); + break; + } + else DPRINTK("ControlReg Reading success val is %x, status%d\n",Data,status); + Data |= 0x08;//setting driver done bit + Data |= 0x04;//sp1_bit to have cts change reflect in modem status reg + + //Data |= 0x20; //rx_disable bit + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],ATEN2011_port->ControlRegOffset,Data); + if(status<0) { + DPRINTK("Writing ControlReg failed(rx_disable) status-0x%x\n", status); + break; + } + else DPRINTK("ControlReg Writing success(rx_disable) status%d\n",status); + + //Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2 and 0x24 in DCR3 + Data = 0x01; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],(__u16)(ATEN2011_port->DcrRegOffset+0),Data); + if(status<0) { + DPRINTK("Writing DCR0 failed status-0x%x\n", status); + break; + } + else DPRINTK("DCR0 Writing success status%d\n",status); + + Data = 0x05; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],(__u16)(ATEN2011_port->DcrRegOffset+1),Data); + if(status<0) { + DPRINTK("Writing DCR1 failed status-0x%x\n", status); + break; + } + else DPRINTK("DCR1 Writing success status%d\n",status); + + Data = 0x24; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],(__u16)(ATEN2011_port->DcrRegOffset+2),Data); + if(status<0) { + DPRINTK("Writing DCR2 failed status-0x%x\n", status); + break; + } + else DPRINTK("DCR2 Writing success status%d\n",status); + + // write values in clkstart0x0 and clkmulti 0x20 + Data = 0x0; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],CLK_START_VALUE_REGISTER,Data); + if(status<0) { + DPRINTK("Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status); + break; + } + else DPRINTK("CLK_START_VALUE_REGISTER Writing success status%d\n",status); + + + Data = 0x20; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],CLK_MULTI_REGISTER,Data); + if(status<0) { + DPRINTK("Writing CLK_MULTI_REGISTER failed status-0x%x\n", status); + break; + } + else DPRINTK("CLK_MULTI_REGISTER Writing success status%d\n",status); + + + //write value 0x0 to scratchpad register + /* + if(RS485mode==0) + Data = 0xC0; + else + Data = 0x00; + status=0; + status=ATEN2011_set_Uart_Reg(serial->port[i],SCRATCH_PAD_REGISTER,Data); + if(status<0) { + DPRINTK("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status); + break; + } + else DPRINTK("SCRATCH_PAD_REGISTER Writing success status%d\n",status); + */ + + /* + //Threshold Registers + if(ATEN2011_serial->ATEN2011_spectrum_2or4ports==4) + { + Data = 0x00; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + (__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt),Data); + DPRINTK("THRESHOLD_VAL offset is%x\n", (__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt)); + if(status<0) { + DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status); + break; + } + else DPRINTK("THRESHOLD_VAL Writing success status%d\n",status); + ATEN2011_Thr_cnt++; + + Data = 0x01; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + (__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt),Data); + DPRINTK("THRESHOLD_VAL offsetis%x\n",(__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt)); + if(status<0) { + DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status); + break; + } + else DPRINTK("THRESHOLD_VAL Writing success status%d\n",status); + ATEN2011_Thr_cnt++; + } + + else + { + + if(ATEN2011_port->port_num==1) + { + Data = 0x00; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + 0x3f,Data); + DPRINTK("THRESHOLD_VAL offset is 0x3f\n"); + if(status<0) { + DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status); + break; + } + Data = 0x01; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + 0x40,Data); + DPRINTK("THRESHOLD_VAL offset is 0x40\n"); + if(status<0) { + DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status); + break; + + } + } + else + { + Data = 0x00; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + 0x43,Data); + DPRINTK("THRESHOLD_VAL offset is 0x43\n"); + if(status<0) { + DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status); + break; + } + Data = 0x01; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + 0x44,Data); + DPRINTK("THRESHOLD_VAL offset is 0x44\n"); + if(status<0) { + DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status); + break; + + } + + + } + + } + */ + //Zero Length flag register + if((ATEN2011_port->port_num != 1)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports==2 )) + { + + Data = 0xff; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + (__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)),Data); + DPRINTK("ZLIP offset%x\n",(__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num))); + if(status<0) { + DPRINTK("Writing ZLP_REG%d failed status-0x%x\n",i+2,status); + break; + } + else DPRINTK("ZLP_REG%d Writing success status%d\n",i+2,status); + } + else + { + Data = 0xff; + status=0; + status=ATEN2011_set_reg_sync(serial->port[i],\ + (__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)-0x1),Data); + DPRINTK("ZLIP offset%x\n",(__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)-0x1)); + if(status<0) { + DPRINTK("Writing ZLP_REG%d failed status-0x%x\n",i+1,status); + break; + } + else DPRINTK("ZLP_REG%d Writing success status%d\n",i+1,status); + + + } + ATEN2011_port->control_urb = usb_alloc_urb(0,GFP_ATOMIC); + ATEN2011_port->ctrl_buf = kmalloc(16,GFP_KERNEL); + + + } + + + ATEN2011_Thr_cnt=0; + //Zero Length flag enable + Data = 0x0f; + status=0; + status=ATEN2011_set_reg_sync(serial->port[0],ZLP_REG5,Data); + if(status<0) { + DPRINTK("Writing ZLP_REG5 failed status-0x%x\n",status); + return -1; + } + else DPRINTK("ZLP_REG5 Writing success status%d\n",status); + + /* setting configuration feature to one */ + usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), (__u8)0x03, 0x00,0x01,0x00, 0x00, 0x00, 5*HZ); + ATEN2011_Thr_cnt =0 ; + return 0; +} + + + +/**************************************************************************** + * ATEN2011_shutdown + * This function is called whenever the device is removed from the usb bus. + ****************************************************************************/ + +static void ATEN2011_shutdown (struct usb_serial *serial) +{ + int i; + struct ATENINTL_port *ATEN2011_port; + DPRINTK("%s \n"," shutdown :entering.........."); + +/* MATRIX */ + //ThreadState = 1; +/* MATRIX */ + + if(!serial) + { + DPRINTK("%s","Invalid Handler \n"); + return; + } + + /* check for the ports to be closed,close the ports and disconnect */ + + /* free private structure allocated for serial port * + * stop reads and writes on all ports */ + + for (i=0; i < serial->num_ports; ++i) + { + ATEN2011_port = ATEN2011_get_port_private(serial->port[i]); + kfree(ATEN2011_port->ctrl_buf); + usb_kill_urb(ATEN2011_port->control_urb); + kfree(ATEN2011_port); + ATEN2011_set_port_private(serial->port[i],NULL); + } + + /* free private structure allocated for serial device */ + + kfree(ATEN2011_get_serial_private(serial)); + ATEN2011_set_serial_private(serial,NULL); + + DPRINTK("%s\n","Thank u :: "); + +} + + +/* Inline functions to check the sanity of a pointer that is passed to us */ +static int ATEN2011_serial_paranoia_check (struct usb_serial *serial, const char *function) +{ + if (!serial) { + dbg("%s - serial == NULL", function); + return -1; + } +// if (serial->magic != USB_SERIAL_MAGIC) { +// dbg("%s - bad magic number for serial", function); +// return -1; +// } + if (!serial->type) { + dbg("%s - serial->type == NULL!", function); + return -1; + } + + return 0; +} +static int ATEN2011_port_paranoia_check (struct usb_serial_port *port, const char *function) +{ + if (!port) { + dbg("%s - port == NULL", function); + return -1; + } +// if (port->magic != USB_SERIAL_PORT_MAGIC) { +// dbg("%s - bad magic number for port", function); +// return -1; +// } + if (!port->serial) { + dbg("%s - port->serial == NULL", function); + return -1; + } + + return 0; +} +static struct usb_serial* ATEN2011_get_usb_serial (struct usb_serial_port *port, const char *function) { + /* if no port was specified, or it fails a paranoia check */ + if (!port || + ATEN2011_port_paranoia_check (port, function) || + ATEN2011_serial_paranoia_check (port->serial, function)) { + /* then say that we don't have a valid usb_serial thing, which will * end up genrating -ENODEV return values */ + return NULL; + } + + return port->serial; +} + + + +/**************************************************************************** + * ATENINTL2011_init + * This is called by the module subsystem, or on startup to initialize us + ****************************************************************************/ + int __init ATENINTL2011_init(void) +{ + int retval; + + DPRINTK("%s \n"," ATEN2011_init :entering.........."); + + /* Register with the usb serial */ + retval = usb_serial_register (&ATENINTL2011_4port_device); + + if(retval) + goto failed_port_device_register; + +/* info(DRIVER_DESC " " DRIVER_VERSION); */ + printk(KERN_INFO KBUILD_MODNAME ":" + DRIVER_DESC " " DRIVER_VERSION "\n"); + + + /* Register with the usb */ + retval = usb_register(&io_driver); + + if (retval) + goto failed_usb_register; + + if(retval == 0) + { + DPRINTK("%s\n","Leaving..."); + return 0; + } + + +failed_usb_register: + usb_serial_deregister(&ATENINTL2011_4port_device); + +failed_port_device_register: + + return retval; +} + +/**************************************************************************** + * ATENINTL2011_exit + * Called when the driver is about to be unloaded. + ****************************************************************************/ +void __exit ATENINTL2011_exit (void) +{ + + DPRINTK("%s \n"," ATEN2011_exit :entering.........."); + + usb_deregister (&io_driver); + + usb_serial_deregister (&ATENINTL2011_4port_device); + + DPRINTK("%s\n","End..."); +} + +module_init(ATENINTL2011_init); +module_exit(ATENINTL2011_exit); + +/* Module information */ +MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_LICENSE("GPL"); + +MODULE_PARM_DESC(debug, "Debug enabled or not"); + diff --git a/drivers/staging/uc2322/aten2011.h b/drivers/staging/uc2322/aten2011.h new file mode 100644 index 000000000000..dc7fb7b876a2 --- /dev/null +++ b/drivers/staging/uc2322/aten2011.h @@ -0,0 +1,383 @@ +/* + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#if !defined(_ATEN_CIP_H_) +#define _ATEN_CIP_H_ + + +#define MAX_RS232_PORTS 2 /* Max # of RS-232 ports per device */ + +#include + +/* + * All typedef goes here + */ + + +/* typedefs that the insideout headers need */ + +#ifndef TRUE + #define TRUE (1) +#endif + +#ifndef FALSE + #define FALSE (0) +#endif + +#ifndef LOW8 + #define LOW8(val) ((unsigned char)(val & 0xff)) +#endif + +#ifndef HIGH8 + #define HIGH8(val) ((unsigned char)((val & 0xff00) >> 8)) +#endif + +#ifndef NUM_ENTRIES + #define NUM_ENTRIES(x) (sizeof(x)/sizeof((x)[0])) +#endif + +#define MAX_SERIALNUMBER_LEN 12 + +/* The following table is used to map the USBx port number to + * the device serial number (or physical USB path), */ + +#define MAX_ATENPORTS 2 +#define MAX_NAME_LEN 64 + +#define RAID_REG1 0x30 +#define RAID_REG2 0x31 + +#define ZLP_REG1 0x3A //Zero_Flag_Reg1 58 +#define ZLP_REG2 0x3B //Zero_Flag_Reg2 59 +#define ZLP_REG3 0x3C //Zero_Flag_Reg3 60 +#define ZLP_REG4 0x3D //Zero_Flag_Reg4 61 +#define ZLP_REG5 0x3E //Zero_Flag_Reg5 62 + +#define THRESHOLD_VAL_SP1_1 0x3F +#define THRESHOLD_VAL_SP1_2 0x40 +#define THRESHOLD_VAL_SP2_1 0x41 +#define THRESHOLD_VAL_SP2_2 0x42 + +#define THRESHOLD_VAL_SP3_1 0x43 +#define THRESHOLD_VAL_SP3_2 0x44 +#define THRESHOLD_VAL_SP4_1 0x45 +#define THRESHOLD_VAL_SP4_2 0x46 + + +/* For higher baud Rates use TIOCEXBAUD */ +#define TIOCEXBAUD 0x5462 + +#define BAUD_1152 0 /* 115200bps * 1 */ +#define BAUD_2304 1 /* 230400bps * 2 */ +#define BAUD_4032 2 /* 403200bps * 3.5 */ +#define BAUD_4608 3 /* 460800bps * 4 */ +#define BAUD_8064 4 /* 806400bps * 7 */ +#define BAUD_9216 5 /* 921600bps * 8 */ + +#define CHASE_TIMEOUT (5*HZ) /* 5 seconds */ +#define OPEN_TIMEOUT (5*HZ) /* 5 seconds */ +#define COMMAND_TIMEOUT (5*HZ) /* 5 seconds */ + +#ifndef SERIAL_MAGIC + #define SERIAL_MAGIC 0x6702 +#endif + +#define PORT_MAGIC 0x7301 + + + +/* vendor id and device id defines */ + +#define USB_VENDOR_ID_ATENINTL 0x0557 +#define ATENINTL_DEVICE_ID_2011 0x2011 +#define ATENINTL_DEVICE_ID_7820 0x7820 + +/* Product information read from the ATENINTL. Provided for later upgrade */ + +/* Interrupt Rotinue Defines */ + +#define SERIAL_IIR_RLS 0x06 +#define SERIAL_IIR_RDA 0x04 +#define SERIAL_IIR_CTI 0x0c +#define SERIAL_IIR_THR 0x02 +#define SERIAL_IIR_MS 0x00 + +/* + * Emulation of the bit mask on the LINE STATUS REGISTER. + */ +#define SERIAL_LSR_DR 0x0001 +#define SERIAL_LSR_OE 0x0002 +#define SERIAL_LSR_PE 0x0004 +#define SERIAL_LSR_FE 0x0008 +#define SERIAL_LSR_BI 0x0010 +#define SERIAL_LSR_THRE 0x0020 +#define SERIAL_LSR_TEMT 0x0040 +#define SERIAL_LSR_FIFOERR 0x0080 + +//MSR bit defines(place holders) +#define ATEN_MSR_CTS 0x01 +#define ATEN_MSR_DSR 0x02 +#define ATEN_MSR_RI 0x04 +#define ATEN_MSR_CD 0x08 +#define ATEN_MSR_DELTA_CTS 0x10 +#define ATEN_MSR_DELTA_DSR 0x20 +#define ATEN_MSR_DELTA_RI 0x40 +#define ATEN_MSR_DELTA_CD 0x80 + +// Serial Port register Address +#define RECEIVE_BUFFER_REGISTER ((__u16)(0x00)) +#define TRANSMIT_HOLDING_REGISTER ((__u16)(0x00)) +#define INTERRUPT_ENABLE_REGISTER ((__u16)(0x01)) +#define INTERRUPT_IDENT_REGISTER ((__u16)(0x02)) +#define FIFO_CONTROL_REGISTER ((__u16)(0x02)) +#define LINE_CONTROL_REGISTER ((__u16)(0x03)) +#define MODEM_CONTROL_REGISTER ((__u16)(0x04)) +#define LINE_STATUS_REGISTER ((__u16)(0x05)) +#define MODEM_STATUS_REGISTER ((__u16)(0x06)) +#define SCRATCH_PAD_REGISTER ((__u16)(0x07)) +#define DIVISOR_LATCH_LSB ((__u16)(0x00)) +#define DIVISOR_LATCH_MSB ((__u16)(0x01)) + +#define SP_REGISTER_BASE ((__u16)(0x08)) +#define CONTROL_REGISTER_BASE ((__u16)(0x09)) +#define DCR_REGISTER_BASE ((__u16)(0x16)) + +#define SP1_REGISTER ((__u16)(0x00)) +#define CONTROL1_REGISTER ((__u16)(0x01)) +#define CLK_MULTI_REGISTER ((__u16)(0x02)) +#define CLK_START_VALUE_REGISTER ((__u16)(0x03)) +#define DCR1_REGISTER ((__u16)(0x04)) +#define GPIO_REGISTER ((__u16)(0x07)) + +#define CLOCK_SELECT_REG1 ((__u16)(0x13)) +#define CLOCK_SELECT_REG2 ((__u16)(0x14)) + +#define SERIAL_LCR_DLAB ((__u16)(0x0080)) + +/* + * URB POOL related defines + */ +#define NUM_URBS 16 /* URB Count */ +#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */ + +struct ATENINTL_product_info +{ + __u16 ProductId; /* Product Identifier */ + __u8 NumPorts; /* Number of ports on ATENINTL */ + __u8 ProdInfoVer; /* What version of structure is this? */ + + __u32 IsServer :1; /* Set if Server */ + __u32 IsRS232 :1; /* Set if RS-232 ports exist */ + __u32 IsRS422 :1; /* Set if RS-422 ports exist */ + __u32 IsRS485 :1; /* Set if RS-485 ports exist */ + __u32 IsReserved :28; /* Reserved for later expansion */ + + __u8 CpuRev; /* CPU revision level (chg only if s/w visible) */ + __u8 BoardRev; /* PCB revision level (chg only if s/w visible) */ + + __u8 ManufactureDescDate[3]; /* MM/DD/YY when descriptor template was compiled */ + __u8 Unused1[1]; /* Available */ +}; + +// different USB-serial Adapter's ID's table +static struct usb_device_id ATENINTL_port_id_table [] = { + { USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) }, + { USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_7820) }, + { } /* terminating entry */ +}; + +static __devinitdata struct usb_device_id id_table_combined [] = { + { USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) }, + { USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_7820) }, + { } /* terminating entry */ +}; + +MODULE_DEVICE_TABLE (usb, id_table_combined); + +/* This structure holds all of the local port information */ +struct ATENINTL_port +{ + int port_num; /*Actual port number in the device(1,2,etc)*/ + __u8 bulk_out_endpoint; /* the bulk out endpoint handle */ + unsigned char *bulk_out_buffer; /* buffer used for the bulk out endpoint */ + struct urb *write_urb; /* write URB for this port */ + __u8 bulk_in_endpoint; /* the bulk in endpoint handle */ + unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */ + struct urb *read_urb; /* read URB for this port */ + __s16 rxBytesAvail;/*the number of bytes that we need to read from this device */ + __s16 rxBytesRemaining; /* the number of port bytes left to read */ + char write_in_progress; /* TRUE while a write URB is outstanding */ + __u8 shadowLCR; /* last LCR value received */ + __u8 shadowMCR; /* last MCR value received */ + __u8 shadowMSR; /* last MSR value received */ + __u8 shadowLSR; /* last LSR value received */ + __u8 shadowXonChar; /* last value set as XON char in ATENINTL */ + __u8 shadowXoffChar; /* last value set as XOFF char in ATENINTL */ + __u8 validDataMask; + __u32 baudRate; + char open; + char openPending; + char commandPending; + char closePending; + char chaseResponsePending; + wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ + wait_queue_head_t wait_open; /* for handling sleeping while waiting for open to finish */ + wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */ + wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ + int delta_msr_cond; + struct async_icount icount; + struct usb_serial_port *port; /* loop back to the owner of this object */ + /*Offsets*/ + __u16 AppNum; + __u8 SpRegOffset; + __u8 ControlRegOffset; + __u8 DcrRegOffset; + __u8 ClkSelectRegOffset; + //for processing control URBS in interrupt context + struct urb *control_urb; + // __le16 rx_creg; + char *ctrl_buf; + int MsrLsr; + + struct urb *write_urb_pool[NUM_URBS]; + /* we pass a pointer to this as the arguement sent to cypress_set_termios old_termios */ + struct ktermios tmp_termios; /* stores the old termios settings */ + spinlock_t lock; /* private lock */ +}; + + +/* This structure holds all of the individual serial device information */ +struct ATENINTL_serial +{ + char name[MAX_NAME_LEN+1]; /* string name of this device */ + struct ATENINTL_product_info product_info; /* Product Info */ + __u8 interrupt_in_endpoint; /* the interrupt endpoint handle */ + unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */ + struct urb * interrupt_read_urb; /* our interrupt urb */ + __u8 bulk_in_endpoint; /* the bulk in endpoint handle */ + unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */ + struct urb *read_urb; /* our bulk read urb */ + __u8 bulk_out_endpoint; /* the bulk out endpoint handle */ + __s16 rxBytesAvail; /* the number of bytes that we need to read from this device */ + __u8 rxPort; /* the port that we are currently receiving data for */ + __u8 rxStatusCode; /* the receive status code */ + __u8 rxStatusParam; /* the receive status paramater */ + __s16 rxBytesRemaining; /* the number of port bytes left to read */ + struct usb_serial *serial; /* loop back to the owner of this object */ + int ATEN2011_spectrum_2or4ports; //this says the number of ports in the device + // Indicates about the no.of opened ports of an individual USB-serial adapater. + unsigned int NoOfOpenPorts; + // a flag for Status endpoint polling + unsigned char status_polling_started; +}; + +/* baud rate information */ +struct ATEN2011_divisor_table_entry +{ + __u32 BaudRate; + __u16 Divisor; +}; + +/* Define table of divisors for ATENINTL 2011 hardware * + * These assume a 3.6864MHz crystal, the standard /16, and * + * MCR.7 = 0. */ +#ifdef NOTATEN2011 +static struct ATEN2011_divisor_table_entry ATEN2011_divisor_table[] = { + { 50, 2304}, + { 110, 1047}, /* 2094.545455 => 230450 => .0217 % over */ + { 134, 857}, /* 1713.011152 => 230398.5 => .00065% under */ + { 150, 768}, + { 300, 384}, + { 600, 192}, + { 1200, 96}, + { 1800, 64}, + { 2400, 48}, + { 4800, 24}, + { 7200, 16}, + { 9600, 12}, + { 19200, 6}, + { 38400, 3}, + { 57600, 2}, + { 115200, 1}, +}; +#endif + +/* local function prototypes */ +/* function prototypes for all URB callbacks */ +static void ATEN2011_interrupt_callback(struct urb *urb); +static void ATEN2011_bulk_in_callback(struct urb *urb); +static void ATEN2011_bulk_out_data_callback(struct urb *urb); +static void ATEN2011_control_callback(struct urb *urb); +static int ATEN2011_get_reg(struct ATENINTL_port *ATEN,__u16 Wval, __u16 reg, __u16 * val); +int handle_newMsr(struct ATENINTL_port *port,__u8 newMsr); +int handle_newLsr(struct ATENINTL_port *port,__u8 newLsr); +/* function prototypes for the usbserial callbacks */ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count); +static int ATEN2011_write_room(struct tty_struct *tty); +static int ATEN2011_chars_in_buffer(struct tty_struct *tty); +static void ATEN2011_throttle(struct tty_struct *tty); +static void ATEN2011_unthrottle(struct tty_struct *tty); +static void ATEN2011_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios); +static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file, + unsigned int set, unsigned int clear); +static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file); +static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); +static void ATEN2011_break(struct tty_struct *tty, int break_state); +#else +static int ATEN2011_open(struct usb_serial_port *port, struct file *filp); +static void ATEN2011_close(struct usb_serial_port *port, struct file *filp); +static int ATEN2011_write(struct usb_serial_port *port, const unsigned char *data, int count); +static int ATEN2011_write_room(struct usb_serial_port *port); +static int ATEN2011_chars_in_buffer(struct usb_serial_port *port); +static void ATEN2011_throttle(struct usb_serial_port *port); +static void ATEN2011_unthrottle(struct usb_serial_port *port); +static void ATEN2011_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); +static int ATEN2011_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear); +static int ATEN2011_tiocmget(struct usb_serial_port *port, struct file *file); +static int ATEN2011_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg); +static void ATEN2011_break(struct usb_serial_port *port, int break_state); +#endif + +//static void ATEN2011_break_ctl(struct usb_serial_port *port, int break_state ); + +static int ATEN2011_startup(struct usb_serial *serial); +static void ATEN2011_shutdown(struct usb_serial *serial); +//static int ATEN2011_serial_probe(struct usb_serial *serial, const struct usb_device_id *id); +static int ATEN2011_calc_num_ports(struct usb_serial *serial); + +/* function prototypes for all of our local functions */ +static int ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,__u16 *clk_sel_val); +static int ATEN2011_send_cmd_write_baud_rate(struct ATENINTL_port *ATEN2011_port, int baudRate); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) +static void ATEN2011_change_port_settings(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios); +static void ATEN2011_block_until_chase_response(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port); +static void ATEN2011_block_until_tx_empty(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port); +#else +static void ATEN2011_change_port_settings(struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios); +static void ATEN2011_block_until_chase_response(struct ATENINTL_port *ATEN2011_port); +static void ATEN2011_block_until_tx_empty(struct ATENINTL_port *ATEN2011_port); +#endif + +int __init ATENINTL2011_init(void); +void __exit ATENINTL2011_exit(void); + +#endif diff --git a/drivers/staging/uc2322/aten2011_16C50.h b/drivers/staging/uc2322/aten2011_16C50.h new file mode 100644 index 000000000000..c311741c114f --- /dev/null +++ b/drivers/staging/uc2322/aten2011_16C50.h @@ -0,0 +1,58 @@ +/* + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#if !defined(_16C50_H) +#define _16C50_H + +/************************************* + * Bit definitions for each register * + *************************************/ +#define LCR_BITS_5 0x00 /* 5 bits/char */ +#define LCR_BITS_6 0x01 /* 6 bits/char */ +#define LCR_BITS_7 0x02 /* 7 bits/char */ +#define LCR_BITS_8 0x03 /* 8 bits/char */ +#define LCR_BITS_MASK 0x03 /* Mask for bits/char field */ + +#define LCR_STOP_1 0x00 /* 1 stop bit */ +#define LCR_STOP_1_5 0x04 /* 1.5 stop bits (if 5 bits/char) */ +#define LCR_STOP_2 0x04 /* 2 stop bits (if 6-8 bits/char) */ +#define LCR_STOP_MASK 0x04 /* Mask for stop bits field */ + +#define LCR_PAR_NONE 0x00 /* No parity */ +#define LCR_PAR_ODD 0x08 /* Odd parity */ +#define LCR_PAR_EVEN 0x18 /* Even parity */ +#define LCR_PAR_MARK 0x28 /* Force parity bit to 1 */ +#define LCR_PAR_SPACE 0x38 /* Force parity bit to 0 */ +#define LCR_PAR_MASK 0x38 /* Mask for parity field */ + +#define LCR_SET_BREAK 0x40 /* Set Break condition */ +#define LCR_DL_ENABLE 0x80 /* Enable access to divisor latch */ + +#define MCR_DTR 0x01 /* Assert DTR */ +#define MCR_RTS 0x02 /* Assert RTS */ +#define MCR_OUT1 0x04 /* Loopback only: Sets state of RI */ +#define MCR_MASTER_IE 0x08 /* Enable interrupt outputs */ +#define MCR_LOOPBACK 0x10 /* Set internal (digital) loopback mode */ +#define MCR_XON_ANY 0x20 /* Enable any char to exit XOFF mode */ + +#define ATEN2011_MSR_CTS 0x10 /* Current state of CTS */ +#define ATEN2011_MSR_DSR 0x20 /* Current state of DSR */ +#define ATEN2011_MSR_RI 0x40 /* Current state of RI */ +#define ATEN2011_MSR_CD 0x80 /* Current state of CD */ + +#endif /* if !defined(_16C50_H) */ +