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Staging: aten2011: fix up comments by removing most of them.
This driver was copied from the io_edgeport.c driver, so we need to put the proper copyright information back on it. Also, almost all of the function comments are directly from the original io_edgeport driver, and most of them are either totally wrong now due to changes, or redundant. So delete them all so no one gets confused by anything. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
8b4efbe395
commit
c3858cbb95
@ -1,51 +1,17 @@
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/*
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* Aten 2011 USB serial driver for 4 port devices
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*
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* Copyright (C) 2000 Inside Out Networks
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* Copyright (C) 2001-2002, 2009 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (C) 2009 Novell Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*************************************************************************
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*** --------------------------------------------------------------------
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***
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*** Project Name: ATENINTL
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***
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*** Module Name: ATEN2011
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***
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*** File: aten2011.c
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***
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***
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*** File Revision: 1.2
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***
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*** Revision Date: 2009-01-16
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***
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***
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*** Purpose : It gives an interface between USB to 4 Serial
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*** and serves as a Serial Driver for the high
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*** level layers /applications.
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***
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*** Change History:
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*** Modified from ATEN revision 1.2 for Linux kernel 2.6.26 or later
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***
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*** LEGEND :
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***
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***
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*** DBG - Code inserted due to as part of debugging
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*** DPRINTK - Debug Print statement
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***
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*************************************************************************/
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/* all file inclusion goes here */
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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@ -54,9 +20,7 @@
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#include <linux/tty_driver.h>
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#include <linux/tty_flip.h>
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#include <linux/module.h>
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//#include <linux/spinlock.h>
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#include <linux/serial.h>
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//#include <linux/ioctl.h>
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#include <linux/usb.h>
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#include <asm/uaccess.h>
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@ -68,13 +32,6 @@
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#include <linux/version.h>
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/*
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* All typedef goes here
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*/
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/* typedefs that the insideout headers need */
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#ifndef TRUE
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#define TRUE (1)
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#endif
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@ -144,14 +101,10 @@
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#define PORT_MAGIC 0x7301
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/* vendor id and device id defines */
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#define USB_VENDOR_ID_ATENINTL 0x0557
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#define ATENINTL_DEVICE_ID_2011 0x2011
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#define ATENINTL_DEVICE_ID_7820 0x7820
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/* Product information read from the ATENINTL. Provided for later upgrade */
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/* Interrupt Rotinue Defines */
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@ -219,25 +172,6 @@
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#define NUM_URBS 16 /* URB Count */
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#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
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struct ATENINTL_product_info
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{
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__u16 ProductId; /* Product Identifier */
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__u8 NumPorts; /* Number of ports on ATENINTL */
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__u8 ProdInfoVer; /* What version of structure is this? */
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__u32 IsServer :1; /* Set if Server */
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__u32 IsRS232 :1; /* Set if RS-232 ports exist */
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__u32 IsRS422 :1; /* Set if RS-422 ports exist */
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__u32 IsRS485 :1; /* Set if RS-485 ports exist */
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__u32 IsReserved :28; /* Reserved for later expansion */
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__u8 CpuRev; /* CPU revision level (chg only if s/w visible) */
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__u8 BoardRev; /* PCB revision level (chg only if s/w visible) */
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__u8 ManufactureDescDate[3]; /* MM/DD/YY when descriptor template was compiled */
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__u8 Unused1[1]; /* Available */
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};
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// different USB-serial Adapter's ID's table
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static struct usb_device_id ATENINTL_port_id_table [] = {
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{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) },
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@ -291,7 +225,6 @@ struct ATENINTL_port
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__u8 SpRegOffset;
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__u8 ControlRegOffset;
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__u8 DcrRegOffset;
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__u8 ClkSelectRegOffset;
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//for processing control URBS in interrupt context
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struct urb *control_urb;
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// __le16 rx_creg;
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@ -308,8 +241,6 @@ struct ATENINTL_port
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/* This structure holds all of the individual serial device information */
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struct ATENINTL_serial
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{
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char name[MAX_NAME_LEN+1]; /* string name of this device */
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struct ATENINTL_product_info product_info; /* Product Info */
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__u8 interrupt_in_endpoint; /* the interrupt endpoint handle */
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unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */
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struct urb * interrupt_read_urb; /* our interrupt urb */
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@ -330,39 +261,6 @@ struct ATENINTL_serial
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unsigned char status_polling_started;
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};
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/* baud rate information */
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struct ATEN2011_divisor_table_entry
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{
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__u32 BaudRate;
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__u16 Divisor;
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};
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/* Define table of divisors for ATENINTL 2011 hardware *
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* These assume a 3.6864MHz crystal, the standard /16, and *
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* MCR.7 = 0. */
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#ifdef NOTATEN2011
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static struct ATEN2011_divisor_table_entry ATEN2011_divisor_table[] = {
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{ 50, 2304},
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{ 110, 1047}, /* 2094.545455 => 230450 => .0217 % over */
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{ 134, 857}, /* 1713.011152 => 230398.5 => .00065% under */
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{ 150, 768},
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{ 300, 384},
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{ 600, 192},
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{ 1200, 96},
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{ 1800, 64},
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{ 2400, 48},
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{ 4800, 24},
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{ 7200, 16},
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{ 9600, 12},
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{ 19200, 6},
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{ 38400, 3},
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{ 57600, 2},
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{ 115200, 1},
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};
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#endif
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/* local function prototypes */
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/* function prototypes for all URB callbacks */
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static void ATEN2011_interrupt_callback(struct urb *urb);
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static void ATEN2011_bulk_in_callback(struct urb *urb);
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static void ATEN2011_bulk_out_data_callback(struct urb *urb);
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@ -370,8 +268,6 @@ static void ATEN2011_control_callback(struct urb *urb);
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static int ATEN2011_get_reg(struct ATENINTL_port *ATEN,__u16 Wval, __u16 reg, __u16 * val);
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int handle_newMsr(struct ATENINTL_port *port,__u8 newMsr);
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int handle_newLsr(struct ATENINTL_port *port,__u8 newLsr);
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/* function prototypes for the usbserial callbacks */
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static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
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static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
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static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count);
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@ -385,15 +281,10 @@ static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
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static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file);
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static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
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static void ATEN2011_break(struct tty_struct *tty, int break_state);
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//static void ATEN2011_break_ctl(struct usb_serial_port *port, int break_state );
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static int ATEN2011_startup(struct usb_serial *serial);
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static void ATEN2011_shutdown(struct usb_serial *serial);
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//static int ATEN2011_serial_probe(struct usb_serial *serial, const struct usb_device_id *id);
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static int ATEN2011_calc_num_ports(struct usb_serial *serial);
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/* function prototypes for all of our local functions */
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static int ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,__u16 *clk_sel_val);
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static int ATEN2011_send_cmd_write_baud_rate(struct ATENINTL_port *ATEN2011_port, int baudRate);
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static void ATEN2011_change_port_settings(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios);
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@ -449,8 +340,6 @@ void __exit ATENINTL2011_exit(void);
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/* 1: Enables the debugging -- 0: Disable the debugging */
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//#define printk //
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#define ATEN_DEBUG 0
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#ifdef ATEN_DEBUG
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@ -493,10 +382,6 @@ static int debug = 0;
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#define ATEN_CTRL_TIMEOUT 500
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#define VENDOR_READ_LENGTH (0x01)
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int ATEN2011_Thr_cnt;
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//int ATEN2011_spectrum_2or4ports; //this says the number of ports in the device
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//int NoOfOpenPorts;
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int RS485mode = 0; //set to 1 for RS485 mode and 0 for RS232 mode
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static struct usb_serial *ATEN2011_get_usb_serial(struct usb_serial_port *port, const
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@ -518,12 +403,6 @@ static int ATEN2011_get_Uart_Reg(struct usb_serial_port *port, __u16 reg,
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void ATEN2011_Dump_serial_port(struct ATENINTL_port *ATEN2011_port);
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/************************************************************************/
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/************************************************************************/
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/* I N T E R F A C E F U N C T I O N S */
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/* I N T E R F A C E F U N C T I O N S */
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/************************************************************************/
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/************************************************************************/
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static inline void ATEN2011_set_serial_private(struct usb_serial *serial,
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struct ATENINTL_serial *data)
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@ -551,15 +430,6 @@ static inline struct ATENINTL_port *ATEN2011_get_port_private(struct
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return (struct ATENINTL_port *)usb_get_serial_port_data(port);
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}
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/*
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Description:- To set the Control register by calling usb_fill_control_urb function by passing usb_sndctrlpipe function as parameter.
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Input Parameters:
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usb_serial_port: Data Structure usb_serialport correponding to that seril port.
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Reg: Register Address
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Val: Value to set in the Register.
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*/
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static int ATEN2011_set_reg_sync(struct usb_serial_port *port, __u16 reg,
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__u16 val)
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{
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@ -572,15 +442,6 @@ static int ATEN2011_set_reg_sync(struct usb_serial_port *port, __u16 reg,
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ATEN_WDR_TIMEOUT);
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}
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/*
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Description:- To set the Uart register by calling usb_fill_control_urb function by passing usb_rcvctrlpipe function as parameter.
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Input Parameters:
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usb_serial_port: Data Structure usb_serialport correponding to that seril port.
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Reg: Register Address
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Val: Value to receive from the Register.
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*/
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static int ATEN2011_get_reg_sync(struct usb_serial_port *port, __u16 reg,
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__u16 * val)
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{
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@ -596,15 +457,6 @@ static int ATEN2011_get_reg_sync(struct usb_serial_port *port, __u16 reg,
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return ret;
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}
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/*
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Description:- To set the Uart register by calling usb_fill_control_urb function by passing usb_sndctrlpipe function as parameter.
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Input Parameters:
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usb_serial_port: Data Structure usb_serialport correponding to that seril port.
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Reg: Register Address
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Val: Value to set in the Register.
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*/
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static int ATEN2011_set_Uart_Reg(struct usb_serial_port *port, __u16 reg,
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__u16 val)
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{
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@ -646,14 +498,6 @@ static int ATEN2011_set_Uart_Reg(struct usb_serial_port *port, __u16 reg,
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}
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/*
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Description:- To set the Control register by calling usb_fill_control_urb function by passing usb_rcvctrlpipe function as parameter.
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Input Parameters:
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usb_serial_port: Data Structure usb_serialport correponding to that seril port.
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Reg: Register Address
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Val: Value to receive from the Register.
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*/
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static int ATEN2011_get_Uart_Reg(struct usb_serial_port *port, __u16 reg,
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__u16 * val)
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{
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@ -704,16 +548,10 @@ void ATEN2011_Dump_serial_port(struct ATENINTL_port *ATEN2011_port)
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DPRINTK("SpRegOffset is %2x\n", ATEN2011_port->SpRegOffset);
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DPRINTK("ControlRegOffset is %2x \n", ATEN2011_port->ControlRegOffset);
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DPRINTK("DCRRegOffset is %2x \n", ATEN2011_port->DcrRegOffset);
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//DPRINTK("ClkSelectRegOffset is %2x \n",ATEN2011_port->ClkSelectRegOffset);
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DPRINTK("***************************************\n");
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}
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/* all structre defination goes here */
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/****************************************************************************
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* ATENINTL2011_4port_device
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* Structure defining ATEN2011, usb serial device
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****************************************************************************/
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static struct usb_serial_driver ATENINTL2011_4port_device = {
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.driver = {
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.owner = THIS_MODULE,
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@ -752,21 +590,6 @@ static struct usb_driver io_driver = {
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.id_table = id_table_combined,
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};
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/************************************************************************/
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/************************************************************************/
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/* U S B C A L L B A C K F U N C T I O N S */
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/* U S B C A L L B A C K F U N C T I O N S */
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/************************************************************************/
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/************************************************************************/
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/*****************************************************************************
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* ATEN2011_interrupt_callback
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* this is the callback function for when we have received data on the
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* interrupt endpoint.
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* Input : 1 Input
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* pointer to the URB packet,
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*
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*****************************************************************************/
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//#ifdef ATEN2011
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static void ATEN2011_interrupt_callback(struct urb *urb)
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{
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@ -948,6 +771,7 @@ static void ATEN2011_control_callback(struct urb *urb)
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exit:
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return;
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}
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int handle_newMsr(struct ATENINTL_port *port, __u8 newMsr)
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{
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struct ATENINTL_port *ATEN2011_port;
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@ -976,6 +800,7 @@ int handle_newMsr(struct ATENINTL_port *port, __u8 newMsr)
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return 0;
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}
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int handle_newLsr(struct ATENINTL_port *port, __u8 newLsr)
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{
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struct async_icount *icount;
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@ -1008,6 +833,7 @@ int handle_newLsr(struct ATENINTL_port *port, __u8 newLsr)
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return 0;
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}
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static int ATEN2011_get_reg(struct ATENINTL_port *ATEN, __u16 Wval, __u16 reg,
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__u16 * val)
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{
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@ -1033,14 +859,6 @@ static int ATEN2011_get_reg(struct ATENINTL_port *ATEN, __u16 Wval, __u16 reg,
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return ret;
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}
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/*****************************************************************************
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* ATEN2011_bulk_in_callback
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* this is the callback function for when we have received data on the
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* bulk in endpoint.
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* Input : 1 Input
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* pointer to the URB packet,
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*
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*****************************************************************************/
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static void ATEN2011_bulk_in_callback(struct urb *urb)
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{
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int status;
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@ -1121,14 +939,6 @@ static void ATEN2011_bulk_in_callback(struct urb *urb)
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}
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}
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/*****************************************************************************
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* ATEN2011_bulk_out_data_callback
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* this is the callback function for when we have finished sending serial data
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* on the bulk out endpoint.
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* Input : 1 Input
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* pointer to the URB packet,
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*
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*****************************************************************************/
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static void ATEN2011_bulk_out_data_callback(struct urb *urb)
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{
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struct ATENINTL_port *ATEN2011_port;
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@ -1171,9 +981,6 @@ static void ATEN2011_bulk_out_data_callback(struct urb *urb)
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}
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/************************************************************************/
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/* 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 */
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/************************************************************************/
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#ifdef ATENSerialProbe
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static int ATEN2011_serial_probe(struct usb_serial *serial,
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const struct usb_device_id *id)
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@ -1187,13 +994,6 @@ static int ATEN2011_serial_probe(struct usb_serial *serial,
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}
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#endif
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/*****************************************************************************
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* SerialOpen
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* this function is called by the tty driver when a port is opened
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* If successful, we return 0
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* Otherwise we return a negative error number.
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*****************************************************************************/
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static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port,
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struct file *filp)
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{
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@ -1604,11 +1404,6 @@ static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port,
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}
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/*****************************************************************************
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* ATEN2011_close
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* this function is called by the tty driver when a port is closed
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*****************************************************************************/
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static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port,
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struct file *filp)
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{
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@ -1713,10 +1508,6 @@ static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port,
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}
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/*****************************************************************************
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* SerialBreak
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* this function sends a break to the port
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*****************************************************************************/
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static void ATEN2011_break(struct tty_struct *tty, int break_state)
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{
|
||||
struct usb_serial_port *port = tty->driver_data;
|
||||
@ -1770,17 +1561,6 @@ static void ATEN2011_break(struct tty_struct *tty, int break_state)
|
||||
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)
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
static void ATEN2011_block_until_chase_response(struct tty_struct *tty,
|
||||
struct ATENINTL_port
|
||||
*ATEN2011_port)
|
||||
@ -1814,16 +1594,6 @@ static void ATEN2011_block_until_chase_response(struct tty_struct *tty,
|
||||
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
*
|
||||
* 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
|
||||
*
|
||||
************************************************************************/
|
||||
static void ATEN2011_block_until_tx_empty(struct tty_struct *tty,
|
||||
struct ATENINTL_port *ATEN2011_port)
|
||||
{
|
||||
@ -1856,14 +1626,6 @@ static void ATEN2011_block_until_tx_empty(struct tty_struct *tty,
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* 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.
|
||||
*****************************************************************************/
|
||||
|
||||
static int ATEN2011_write_room(struct tty_struct *tty)
|
||||
{
|
||||
struct usb_serial_port *port = tty->driver_data;
|
||||
@ -1896,16 +1658,6 @@ static int ATEN2011_write_room(struct tty_struct *tty)
|
||||
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* 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.
|
||||
*****************************************************************************/
|
||||
|
||||
static int ATEN2011_chars_in_buffer(struct tty_struct *tty)
|
||||
{
|
||||
struct usb_serial_port *port = tty->driver_data;
|
||||
@ -1936,14 +1688,6 @@ static int ATEN2011_chars_in_buffer(struct tty_struct *tty)
|
||||
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* 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.
|
||||
*****************************************************************************/
|
||||
|
||||
static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port,
|
||||
const unsigned char *data, int count)
|
||||
{
|
||||
@ -1962,43 +1706,6 @@ static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port,
|
||||
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");
|
||||
@ -2109,12 +1816,6 @@ static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port,
|
||||
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* SerialThrottle
|
||||
* this function is called by the tty driver when it wants to stop the data
|
||||
* being read from the port.
|
||||
*****************************************************************************/
|
||||
|
||||
static void ATEN2011_throttle(struct tty_struct *tty)
|
||||
{
|
||||
struct usb_serial_port *port = tty->driver_data;
|
||||
@ -2170,11 +1871,6 @@ static void ATEN2011_throttle(struct tty_struct *tty)
|
||||
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)
|
||||
*****************************************************************************/
|
||||
static void ATEN2011_unthrottle(struct tty_struct *tty)
|
||||
{
|
||||
struct usb_serial_port *port = tty->driver_data;
|
||||
@ -2302,11 +1998,6 @@ static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* SerialSetTermios
|
||||
* this function is called by the tty driver when it wants to change the termios structure
|
||||
*****************************************************************************/
|
||||
|
||||
static void ATEN2011_set_termios(struct tty_struct *tty,
|
||||
struct usb_serial_port *port,
|
||||
struct ktermios *old_termios)
|
||||
@ -2389,27 +2080,6 @@ static void ATEN2011_set_termios(struct tty_struct *tty,
|
||||
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.
|
||||
*****************************************************************************/
|
||||
|
||||
static int get_lsr_info(struct tty_struct *tty,
|
||||
struct ATENINTL_port *ATEN2011_port,
|
||||
unsigned int *value)
|
||||
@ -2428,12 +2098,6 @@ static int get_lsr_info(struct tty_struct *tty,
|
||||
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.
|
||||
*****************************************************************************/
|
||||
|
||||
static int get_number_bytes_avail(struct tty_struct *tty,
|
||||
struct ATENINTL_port *ATEN2011_port,
|
||||
unsigned int *value)
|
||||
@ -2452,11 +2116,6 @@ static int get_number_bytes_avail(struct tty_struct *tty,
|
||||
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)
|
||||
{
|
||||
@ -2522,11 +2181,6 @@ static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd,
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* get_modem_info
|
||||
* function to get modem info
|
||||
*****************************************************************************/
|
||||
|
||||
static int get_modem_info(struct ATENINTL_port *ATEN2011_port,
|
||||
unsigned int *value)
|
||||
{
|
||||
@ -2551,11 +2205,6 @@ static int get_modem_info(struct ATENINTL_port *ATEN2011_port,
|
||||
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)
|
||||
{
|
||||
@ -2586,11 +2235,6 @@ static int get_serial_info(struct ATENINTL_port *ATEN2011_port,
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* SerialIoctl
|
||||
* this function handles any ioctl calls to the driver
|
||||
*****************************************************************************/
|
||||
|
||||
static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
@ -2631,33 +2275,6 @@ static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file,
|
||||
(int __user *)arg);
|
||||
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);
|
||||
return get_lsr_info(tty, ATEN2011_port, (unsigned int *)arg);
|
||||
@ -2742,12 +2359,6 @@ static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file,
|
||||
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)
|
||||
{
|
||||
@ -2871,11 +2482,6 @@ static int ATEN2011_send_cmd_write_baud_rate(struct ATENINTL_port
|
||||
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)
|
||||
{
|
||||
@ -2911,46 +2517,8 @@ static int ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,
|
||||
*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.
|
||||
*****************************************************************************/
|
||||
|
||||
static void ATEN2011_change_port_settings(struct tty_struct *tty,
|
||||
struct ATENINTL_port *ATEN2011_port,
|
||||
struct ktermios *old_termios)
|
||||
@ -3173,10 +2741,6 @@ static int ATEN2011_calc_num_ports(struct usb_serial *serial)
|
||||
return ATEN2011_2or4ports;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* ATEN2011_startup
|
||||
****************************************************************************/
|
||||
|
||||
static int ATEN2011_startup(struct usb_serial *serial)
|
||||
{
|
||||
struct ATENINTL_serial *ATEN2011_serial;
|
||||
@ -3251,35 +2815,30 @@ static int ATEN2011_startup(struct usb_serial *serial)
|
||||
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);
|
||||
|
||||
@ -3385,101 +2944,6 @@ static int ATEN2011_startup(struct usb_serial *serial)
|
||||
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)) {
|
||||
@ -3531,7 +2995,6 @@ static int ATEN2011_startup(struct usb_serial *serial)
|
||||
|
||||
}
|
||||
|
||||
ATEN2011_Thr_cnt = 0;
|
||||
//Zero Length flag enable
|
||||
Data = 0x0f;
|
||||
status = 0;
|
||||
@ -3545,15 +3008,9 @@ static int ATEN2011_startup(struct usb_serial *serial)
|
||||
/* 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;
|
||||
@ -3599,10 +3056,6 @@ static int ATEN2011_serial_paranoia_check(struct usb_serial *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;
|
||||
@ -3617,10 +3070,6 @@ static int ATEN2011_port_paranoia_check(struct usb_serial_port *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;
|
||||
@ -3642,10 +3091,6 @@ static struct usb_serial *ATEN2011_get_usb_serial(struct usb_serial_port *port,
|
||||
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;
|
||||
@ -3681,10 +3126,6 @@ int __init ATENINTL2011_init(void)
|
||||
return retval;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* ATENINTL2011_exit
|
||||
* Called when the driver is about to be unloaded.
|
||||
****************************************************************************/
|
||||
void __exit ATENINTL2011_exit(void)
|
||||
{
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user