2453 lines
64 KiB
C
2453 lines
64 KiB
C
/*
|
|
* Aten 2011 USB serial driver for 4 port devices
|
|
*
|
|
* Copyright (C) 2000 Inside Out Networks
|
|
* Copyright (C) 2001-2002, 2009 Greg Kroah-Hartman <greg@kroah.com>
|
|
* Copyright (C) 2009 Novell Inc.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/tty_driver.h>
|
|
#include <linux/tty_flip.h>
|
|
#include <linux/module.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/usb/serial.h>
|
|
|
|
|
|
#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 */
|
|
|
|
/* 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_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 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 SERIAL_LCR_DLAB ((__u16)(0x0080))
|
|
|
|
/*
|
|
* URB POOL related defines
|
|
*/
|
|
#define NUM_URBS 16 /* URB Count */
|
|
#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
|
|
|
|
#define USB_VENDOR_ID_ATENINTL 0x0557
|
|
#define ATENINTL_DEVICE_ID_2011 0x2011
|
|
#define ATENINTL_DEVICE_ID_7820 0x7820
|
|
|
|
static struct usb_device_id id_table[] = {
|
|
{ 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);
|
|
|
|
/* 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 */
|
|
__u8 shadowLCR; /* last LCR value received */
|
|
__u8 shadowMCR; /* last MCR value received */
|
|
char open;
|
|
char chaseResponsePending;
|
|
wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */
|
|
wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */
|
|
struct async_icount icount;
|
|
struct usb_serial_port *port; /* loop back to the owner of this object */
|
|
/*Offsets*/
|
|
__u8 SpRegOffset;
|
|
__u8 ControlRegOffset;
|
|
__u8 DcrRegOffset;
|
|
/* for processing control URBS in interrupt context */
|
|
struct urb *control_urb;
|
|
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 {
|
|
__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 */
|
|
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;
|
|
};
|
|
|
|
static void ATEN2011_set_termios(struct tty_struct *tty,
|
|
struct usb_serial_port *port,
|
|
struct ktermios *old_termios);
|
|
static void ATEN2011_change_port_settings(struct tty_struct *tty,
|
|
struct ATENINTL_port *ATEN2011_port,
|
|
struct ktermios *old_termios);
|
|
|
|
/*************************************
|
|
* 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 */
|
|
|
|
|
|
static int debug;
|
|
|
|
/*
|
|
* Version Information
|
|
*/
|
|
#define DRIVER_VERSION "2.0"
|
|
#define DRIVER_DESC "ATENINTL 2011 USB Serial Adapter"
|
|
|
|
/*
|
|
* Defines used for sending commands to port
|
|
*/
|
|
|
|
#define ATEN_WDR_TIMEOUT (50) /* default urb timeout */
|
|
|
|
/* 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)
|
|
|
|
/* set to 1 for RS485 mode and 0 for RS232 mode */
|
|
/* FIXME make this somehow dynamic and not build time specific */
|
|
static int RS485mode;
|
|
|
|
static int set_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 val)
|
|
{
|
|
struct usb_device *dev = port->serial->dev;
|
|
val = val & 0x00ff;
|
|
|
|
dbg("%s: is %x, value %x", __func__, reg, val);
|
|
|
|
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ,
|
|
ATEN_WR_RTYPE, val, reg, NULL, 0,
|
|
ATEN_WDR_TIMEOUT);
|
|
}
|
|
|
|
static int get_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 *val)
|
|
{
|
|
struct usb_device *dev = port->serial->dev;
|
|
int ret;
|
|
|
|
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ,
|
|
ATEN_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,
|
|
ATEN_WDR_TIMEOUT);
|
|
dbg("%s: offset is %x, return val %x", __func__, reg, *val);
|
|
*val = (*val) & 0x00ff;
|
|
return ret;
|
|
}
|
|
|
|
static int set_uart_reg(struct usb_serial_port *port, __u16 reg, __u16 val)
|
|
{
|
|
struct usb_device *dev = port->serial->dev;
|
|
struct ATENINTL_serial *a_serial;
|
|
__u16 minor;
|
|
|
|
a_serial = usb_get_serial_data(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 (a_serial->ATEN2011_spectrum_2or4ports == 4)
|
|
val |= (((__u16)port->number - minor) + 1) << 8;
|
|
else {
|
|
if (((__u16) port->number - minor) == 0)
|
|
val |= (((__u16)port->number - minor) + 1) << 8;
|
|
else
|
|
val |= (((__u16)port->number - minor) + 2) << 8;
|
|
}
|
|
dbg("%s: application number is %x", __func__, val);
|
|
|
|
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ,
|
|
ATEN_WR_RTYPE, val, reg, NULL, 0,
|
|
ATEN_WDR_TIMEOUT);
|
|
}
|
|
|
|
static int 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 *a_serial;
|
|
__u16 minor = port->serial->minor;
|
|
|
|
a_serial = usb_get_serial_data(port->serial);
|
|
if (minor == SERIAL_TTY_NO_MINOR)
|
|
minor = 0;
|
|
|
|
/* wval is same as application number */
|
|
if (a_serial->ATEN2011_spectrum_2or4ports == 4)
|
|
wval = (((__u16)port->number - minor) + 1) << 8;
|
|
else {
|
|
if (((__u16) port->number - minor) == 0)
|
|
wval = (((__u16) port->number - minor) + 1) << 8;
|
|
else
|
|
wval = (((__u16) port->number - minor) + 2) << 8;
|
|
}
|
|
dbg("%s: application number is %x", __func__, 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;
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
static int handle_newLsr(struct ATENINTL_port *port, __u8 newLsr)
|
|
{
|
|
struct async_icount *icount;
|
|
|
|
dbg("%s - %02x", __func__, 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 void ATEN2011_control_callback(struct urb *urb)
|
|
{
|
|
unsigned char *data;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
__u8 regval = 0x0;
|
|
|
|
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", __func__,
|
|
urb->status);
|
|
return;
|
|
default:
|
|
dbg("%s - nonzero urb status received: %d", __func__,
|
|
urb->status);
|
|
goto exit;
|
|
}
|
|
|
|
ATEN2011_port = (struct ATENINTL_port *)urb->context;
|
|
|
|
dbg("%s urb buffer size is %d", __func__, urb->actual_length);
|
|
dbg("%s ATEN2011_port->MsrLsr is %d port %d", __func__,
|
|
ATEN2011_port->MsrLsr, ATEN2011_port->port_num);
|
|
data = urb->transfer_buffer;
|
|
regval = (__u8) data[0];
|
|
dbg("%s data is %x", __func__, regval);
|
|
if (ATEN2011_port->MsrLsr == 0)
|
|
handle_newMsr(ATEN2011_port, regval);
|
|
else if (ATEN2011_port->MsrLsr == 1)
|
|
handle_newLsr(ATEN2011_port, regval);
|
|
|
|
exit:
|
|
return;
|
|
}
|
|
|
|
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 = (void *)(buffer + 2);
|
|
dr->bRequestType = ATEN_RD_RTYPE;
|
|
dr->bRequest = ATEN_RDREQ;
|
|
dr->wValue = cpu_to_le16(Wval);
|
|
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;
|
|
}
|
|
|
|
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;
|
|
|
|
dbg("%s", " : Entering");
|
|
|
|
ATEN2011_serial = (struct ATENINTL_serial *)urb->context;
|
|
|
|
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", __func__,
|
|
urb->status);
|
|
return;
|
|
default:
|
|
dbg("%s - nonzero urb status received: %d", __func__,
|
|
urb->status);
|
|
goto exit;
|
|
}
|
|
length = urb->actual_length;
|
|
data = urb->transfer_buffer;
|
|
|
|
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) {
|
|
dbg("%s", "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];
|
|
|
|
}
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
ATEN2011_port = usb_get_serial_port_data(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 != 0) {
|
|
if (sp[i] & 0x01) {
|
|
dbg("SP%d No Interrupt !!!", i);
|
|
} else {
|
|
switch (sp[i] & 0x0f) {
|
|
case SERIAL_IIR_RLS:
|
|
dbg("Serial Port %d: Receiver status error or address bit detected in 9-bit mode", i);
|
|
ATEN2011_port->MsrLsr = 1;
|
|
ATEN2011_get_reg(ATEN2011_port, wval,
|
|
LINE_STATUS_REGISTER,
|
|
&Data);
|
|
break;
|
|
case SERIAL_IIR_MS:
|
|
dbg("Serial Port %d: Modem status change", i);
|
|
ATEN2011_port->MsrLsr = 0;
|
|
ATEN2011_get_reg(ATEN2011_port, wval,
|
|
MODEM_STATUS_REGISTER,
|
|
&Data);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
exit:
|
|
if (ATEN2011_serial->status_polling_started == 0)
|
|
return;
|
|
|
|
result = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (result) {
|
|
dev_err(&urb->dev->dev,
|
|
"%s - Error %d submitting interrupt urb\n",
|
|
__func__, result);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
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->status) {
|
|
dbg("nonzero read bulk status received: %d", urb->status);
|
|
return;
|
|
}
|
|
|
|
ATEN2011_port = (struct ATENINTL_port *)urb->context;
|
|
|
|
port = (struct usb_serial_port *)ATEN2011_port->port;
|
|
serial = port->serial;
|
|
|
|
dbg("%s", "Entering...");
|
|
|
|
data = urb->transfer_buffer;
|
|
ATEN2011_serial = usb_get_serial_data(serial);
|
|
|
|
if (urb->actual_length) {
|
|
tty = tty_port_tty_get(&ATEN2011_port->port->port);
|
|
if (tty) {
|
|
tty_buffer_request_room(tty, urb->actual_length);
|
|
tty_insert_flip_string(tty, data, urb->actual_length);
|
|
tty_flip_buffer_push(tty);
|
|
tty_kref_put(tty);
|
|
}
|
|
|
|
ATEN2011_port->icount.rx += urb->actual_length;
|
|
dbg("ATEN2011_port->icount.rx is %d:",
|
|
ATEN2011_port->icount.rx);
|
|
}
|
|
|
|
if (!ATEN2011_port->read_urb) {
|
|
dbg("%s", "URB KILLED !!!");
|
|
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)
|
|
dbg("usb_submit_urb(read bulk) failed, status = %d", status);
|
|
}
|
|
}
|
|
|
|
static void ATEN2011_bulk_out_data_callback(struct urb *urb)
|
|
{
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
struct tty_struct *tty;
|
|
|
|
if (urb->status) {
|
|
dbg("nonzero write bulk status received:%d", urb->status);
|
|
return;
|
|
}
|
|
|
|
ATEN2011_port = (struct ATENINTL_port *)urb->context;
|
|
|
|
dbg("%s", "Entering .........");
|
|
|
|
tty = tty_port_tty_get(&ATEN2011_port->port->port);
|
|
|
|
if (tty && ATEN2011_port->open) {
|
|
/* tell the tty driver that something has changed */
|
|
wake_up_interruptible(&tty->write_wait);
|
|
}
|
|
|
|
/* schedule_work(&ATEN2011_port->port->work); */
|
|
tty_kref_put(tty);
|
|
|
|
}
|
|
|
|
#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
|
|
|
|
static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port,
|
|
struct file *filp)
|
|
{
|
|
int response;
|
|
int j;
|
|
struct usb_serial *serial;
|
|
struct urb *urb;
|
|
__u16 Data;
|
|
int status;
|
|
struct ATENINTL_serial *ATEN2011_serial;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
struct ktermios tmp_termios;
|
|
int minor;
|
|
|
|
serial = port->serial;
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
if (ATEN2011_port == NULL)
|
|
return -ENODEV;
|
|
|
|
ATEN2011_serial = usb_get_serial_data(serial);
|
|
if (ATEN2011_serial == NULL)
|
|
return -ENODEV;
|
|
|
|
/* increment the number of opened ports counter here */
|
|
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.", __func__);
|
|
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 */
|
|
|
|
Data = 0x0;
|
|
status = get_reg_sync(port, ATEN2011_port->SpRegOffset, &Data);
|
|
if (status < 0) {
|
|
dbg("Reading Spreg failed");
|
|
return -1;
|
|
}
|
|
Data |= 0x80;
|
|
status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
|
|
if (status < 0) {
|
|
dbg("writing Spreg failed");
|
|
return -1;
|
|
}
|
|
|
|
Data &= ~0x80;
|
|
status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
|
|
if (status < 0) {
|
|
dbg("writing Spreg failed");
|
|
return -1;
|
|
}
|
|
|
|
/* End of block to be checked */
|
|
/**************************CHECK***************************/
|
|
|
|
if (RS485mode == 0)
|
|
Data = 0xC0;
|
|
else
|
|
Data = 0x00;
|
|
status = set_uart_reg(port, SCRATCH_PAD_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x", status);
|
|
return -1;
|
|
} else
|
|
dbg("SCRATCH_PAD_REGISTER Writing success status%d", status);
|
|
|
|
/**************************CHECK***************************/
|
|
|
|
Data = 0x0;
|
|
status = get_reg_sync(port, ATEN2011_port->ControlRegOffset, &Data);
|
|
if (status < 0) {
|
|
dbg("Reading Controlreg failed");
|
|
return -1;
|
|
}
|
|
Data |= 0x08; /* Driver done bit */
|
|
Data |= 0x20; /* rx_disable */
|
|
status = 0;
|
|
status =
|
|
set_reg_sync(port, ATEN2011_port->ControlRegOffset, Data);
|
|
if (status < 0) {
|
|
dbg("writing Controlreg failed");
|
|
return -1;
|
|
}
|
|
/*
|
|
* do register settings here
|
|
* Set all regs to the device default values.
|
|
* First Disable all interrupts.
|
|
*/
|
|
|
|
Data = 0x00;
|
|
status = set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("disableing interrupts failed");
|
|
return -1;
|
|
}
|
|
/* Set FIFO_CONTROL_REGISTER to the default value */
|
|
Data = 0x00;
|
|
status = set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("Writing FIFO_CONTROL_REGISTER failed");
|
|
return -1;
|
|
}
|
|
|
|
Data = 0xcf; /* chk */
|
|
status = set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("Writing FIFO_CONTROL_REGISTER failed");
|
|
return -1;
|
|
}
|
|
|
|
Data = 0x03; /* LCR_BITS_8 */
|
|
status = set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
|
|
ATEN2011_port->shadowLCR = Data;
|
|
|
|
Data = 0x0b; /* MCR_DTR|MCR_RTS|MCR_MASTER_IE */
|
|
status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
|
|
ATEN2011_port->shadowMCR = Data;
|
|
|
|
#ifdef Check
|
|
Data = 0x00;
|
|
status = get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
|
|
ATEN2011_port->shadowLCR = Data;
|
|
|
|
Data |= SERIAL_LCR_DLAB; /* data latch enable in LCR 0x80 */
|
|
status = set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
|
|
|
|
Data = 0x0c;
|
|
status = set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
|
|
|
|
Data = 0x0;
|
|
status = set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
|
|
|
|
Data = 0x00;
|
|
status = get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
|
|
|
|
/* Data = ATEN2011_port->shadowLCR; */ /* data latch disable */
|
|
Data = Data & ~SERIAL_LCR_DLAB;
|
|
status = set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
|
|
ATEN2011_port->shadowLCR = Data;
|
|
#endif
|
|
/* clearing Bulkin and Bulkout Fifo */
|
|
Data = 0x0;
|
|
status = get_reg_sync(port, ATEN2011_port->SpRegOffset, &Data);
|
|
|
|
Data = Data | 0x0c;
|
|
status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
|
|
|
|
Data = Data & ~0x0c;
|
|
status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
|
|
/* Finally enable all interrupts */
|
|
Data = 0x0;
|
|
Data = 0x0c;
|
|
status = set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
|
|
|
|
/* clearing rx_disable */
|
|
Data = 0x0;
|
|
status = get_reg_sync(port, ATEN2011_port->ControlRegOffset, &Data);
|
|
Data = Data & ~0x20;
|
|
status = set_reg_sync(port, ATEN2011_port->ControlRegOffset, Data);
|
|
|
|
/* rx_negate */
|
|
Data = 0x0;
|
|
status = get_reg_sync(port, ATEN2011_port->ControlRegOffset, &Data);
|
|
Data = Data | 0x10;
|
|
status = 0;
|
|
status = 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 (tty)
|
|
tty->low_latency = 1;
|
|
/*
|
|
* 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 = 1;
|
|
/* 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;
|
|
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) {
|
|
dbg("%s - Error %d submitting interrupt urb",
|
|
__func__, response);
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* 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.)
|
|
*/
|
|
|
|
dbg("port number is %d", port->number);
|
|
dbg("serial number is %d", port->serial->minor);
|
|
dbg("Bulkin endpoint is %d", port->bulk_in_endpointAddress);
|
|
dbg("BulkOut endpoint is %d", port->bulk_out_endpointAddress);
|
|
dbg("Interrupt endpoint is %d",
|
|
port->interrupt_in_endpointAddress);
|
|
dbg("port's number in the device is %d", 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);
|
|
|
|
dbg("ATEN2011_open: bulkin endpoint is %d",
|
|
port->bulk_in_endpointAddress);
|
|
response = usb_submit_urb(ATEN2011_port->read_urb, GFP_KERNEL);
|
|
if (response) {
|
|
err("%s - Error %d submitting control urb", __func__,
|
|
response);
|
|
}
|
|
|
|
/* initialize our wait queues */
|
|
init_waitqueue_head(&ATEN2011_port->wait_chase);
|
|
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 = 0;
|
|
/* send a open port command */
|
|
ATEN2011_port->open = 1;
|
|
/* ATEN2011_change_port_settings(ATEN2011_port,old_termios); */
|
|
/* Setup termios */
|
|
ATEN2011_set_termios(tty, port, &tmp_termios);
|
|
ATEN2011_port->icount.tx = 0;
|
|
ATEN2011_port->icount.rx = 0;
|
|
|
|
dbg("usb_serial serial:%x ATEN2011_port:%x\nATEN2011_serial:%x usb_serial_port port:%x",
|
|
(unsigned int)serial, (unsigned int)ATEN2011_port,
|
|
(unsigned int)ATEN2011_serial, (unsigned int)port);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int ATEN2011_chars_in_buffer(struct tty_struct *tty)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
int i;
|
|
int chars = 0;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
|
|
/* dbg("%s"," ATEN2011_chars_in_buffer:entering ..........."); */
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
if (ATEN2011_port == NULL) {
|
|
dbg("%s", "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", __func__, chars);
|
|
return chars;
|
|
|
|
}
|
|
|
|
static void ATEN2011_block_until_tx_empty(struct tty_struct *tty,
|
|
struct ATENINTL_port *ATEN2011_port)
|
|
{
|
|
int timeout = HZ / 10;
|
|
int wait = 30;
|
|
int count;
|
|
|
|
while (1) {
|
|
count = ATEN2011_chars_in_buffer(tty);
|
|
|
|
/* 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", __func__);
|
|
return;
|
|
} else {
|
|
/* Reset timout value back to seconds */
|
|
wait = 30;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port,
|
|
struct file *filp)
|
|
{
|
|
struct usb_serial *serial;
|
|
struct ATENINTL_serial *ATEN2011_serial;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
int no_urbs;
|
|
__u16 Data;
|
|
|
|
dbg("%s", "ATEN2011_close:entering...");
|
|
serial = port->serial;
|
|
|
|
/* take the Adpater and port's private data */
|
|
ATEN2011_serial = usb_get_serial_data(serial);
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL))
|
|
return;
|
|
|
|
if (serial->dev) {
|
|
/* flush and block(wait) until tx is empty */
|
|
ATEN2011_block_until_tx_empty(tty, ATEN2011_port);
|
|
}
|
|
/* 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) {
|
|
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) {
|
|
dbg("%s", "Shutdown bulk write");
|
|
usb_kill_urb(ATEN2011_port->write_urb);
|
|
}
|
|
if (ATEN2011_port->read_urb) {
|
|
dbg("%s", "Shutdown bulk read");
|
|
usb_kill_urb(ATEN2011_port->read_urb);
|
|
}
|
|
if ((&ATEN2011_port->control_urb)) {
|
|
dbg("%s", "Shutdown control read");
|
|
/* 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--;
|
|
dbg("NoOfOpenPorts in close%d:in port%d",
|
|
ATEN2011_serial->NoOfOpenPorts, port->number);
|
|
if (ATEN2011_serial->NoOfOpenPorts == 0) {
|
|
/* stop the stus polling here */
|
|
ATEN2011_serial->status_polling_started = 0;
|
|
if (ATEN2011_serial->interrupt_read_urb) {
|
|
dbg("%s", "Shutdown interrupt_read_urb");
|
|
/* 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 */
|
|
kfree(ATEN2011_port->write_urb->transfer_buffer);
|
|
usb_free_urb(ATEN2011_port->write_urb);
|
|
}
|
|
|
|
/* clear the MCR & IER */
|
|
Data = 0x00;
|
|
set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
|
|
Data = 0x00;
|
|
set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
|
|
|
|
ATEN2011_port->open = 0;
|
|
dbg("%s", "Leaving ............");
|
|
|
|
}
|
|
|
|
static void ATEN2011_block_until_chase_response(struct tty_struct *tty,
|
|
struct ATENINTL_port
|
|
*ATEN2011_port)
|
|
{
|
|
int timeout = 1 * HZ;
|
|
int wait = 10;
|
|
int count;
|
|
|
|
while (1) {
|
|
count = ATEN2011_chars_in_buffer(tty);
|
|
|
|
/* Check for Buffer status */
|
|
if (count <= 0) {
|
|
ATEN2011_port->chaseResponsePending = 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", __func__);
|
|
return;
|
|
} else {
|
|
/* Reset timout value back to seconds */
|
|
wait = 10;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void ATEN2011_break(struct tty_struct *tty, int break_state)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
unsigned char data;
|
|
struct usb_serial *serial;
|
|
struct ATENINTL_serial *ATEN2011_serial;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
|
|
dbg("%s", "Entering ...........");
|
|
dbg("ATEN2011_break: Start");
|
|
|
|
serial = port->serial;
|
|
|
|
ATEN2011_serial = usb_get_serial_data(serial);
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL))
|
|
return;
|
|
|
|
/* flush and chase */
|
|
ATEN2011_port->chaseResponsePending = 1;
|
|
|
|
if (serial->dev) {
|
|
/* flush and block until tx is empty */
|
|
ATEN2011_block_until_chase_response(tty, ATEN2011_port);
|
|
}
|
|
|
|
if (break_state == -1)
|
|
data = ATEN2011_port->shadowLCR | LCR_SET_BREAK;
|
|
else
|
|
data = ATEN2011_port->shadowLCR & ~LCR_SET_BREAK;
|
|
|
|
ATEN2011_port->shadowLCR = data;
|
|
dbg("ATEN2011_break ATEN2011_port->shadowLCR is %x",
|
|
ATEN2011_port->shadowLCR);
|
|
set_uart_reg(port, LINE_CONTROL_REGISTER, ATEN2011_port->shadowLCR);
|
|
|
|
return;
|
|
}
|
|
|
|
static int ATEN2011_write_room(struct tty_struct *tty)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
int i;
|
|
int room = 0;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
if (ATEN2011_port == NULL) {
|
|
dbg("%s", "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", __func__, room);
|
|
return room;
|
|
|
|
}
|
|
|
|
static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port,
|
|
const unsigned char *data, int count)
|
|
{
|
|
int status;
|
|
int i;
|
|
int bytes_sent = 0;
|
|
int transfer_size;
|
|
int minor;
|
|
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
struct usb_serial *serial;
|
|
struct ATENINTL_serial *ATEN2011_serial;
|
|
struct urb *urb;
|
|
const unsigned char *current_position = data;
|
|
unsigned char *data1;
|
|
dbg("%s", "entering ...........");
|
|
|
|
serial = port->serial;
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
if (ATEN2011_port == NULL) {
|
|
dbg("%s", "ATEN2011_port is NULL");
|
|
return -1;
|
|
}
|
|
|
|
ATEN2011_serial = usb_get_serial_data(serial);
|
|
if (ATEN2011_serial == NULL) {
|
|
dbg("%s", "ATEN2011_serial is NULL");
|
|
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];
|
|
dbg("URB:%d", i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (urb == NULL) {
|
|
dbg("%s - no more free urbs", __func__);
|
|
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...", __func__);
|
|
goto exit;
|
|
}
|
|
}
|
|
transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
|
|
|
|
memcpy(urb->transfer_buffer, current_position, transfer_size);
|
|
/* usb_serial_debug_data (__FILE__, __func__, 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;
|
|
dbg("bulkout endpoint is %d", port->bulk_out_endpointAddress);
|
|
/* for(i=0;i < urb->actual_length;i++) */
|
|
/* dbg("Data is %c ",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",
|
|
__func__, status);
|
|
bytes_sent = status;
|
|
goto exit;
|
|
}
|
|
bytes_sent = transfer_size;
|
|
ATEN2011_port->icount.tx += transfer_size;
|
|
dbg("ATEN2011_port->icount.tx is %d:", ATEN2011_port->icount.tx);
|
|
|
|
exit:
|
|
return bytes_sent;
|
|
}
|
|
|
|
static void ATEN2011_throttle(struct tty_struct *tty)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
int status;
|
|
|
|
dbg("- port %d", port->number);
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
if (ATEN2011_port == NULL)
|
|
return;
|
|
|
|
if (!ATEN2011_port->open) {
|
|
dbg("%s", "port not opened");
|
|
return;
|
|
}
|
|
|
|
dbg("%s", "Entering .......... ");
|
|
|
|
if (!tty) {
|
|
dbg("%s - no tty available", __func__);
|
|
return;
|
|
}
|
|
|
|
/* if we are implementing XON/XOFF, send the stop character */
|
|
if (I_IXOFF(tty)) {
|
|
unsigned char stop_char = STOP_CHAR(tty);
|
|
status = ATEN2011_write(tty, port, &stop_char, 1);
|
|
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 = set_uart_reg(port, MODEM_CONTROL_REGISTER,
|
|
ATEN2011_port->shadowMCR);
|
|
if (status < 0)
|
|
return;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static void ATEN2011_unthrottle(struct tty_struct *tty)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
int status;
|
|
struct ATENINTL_port *ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
if (ATEN2011_port == NULL)
|
|
return;
|
|
|
|
if (!ATEN2011_port->open) {
|
|
dbg("%s - port not opened", __func__);
|
|
return;
|
|
}
|
|
|
|
dbg("%s", "Entering .......... ");
|
|
|
|
if (!tty) {
|
|
dbg("%s - no tty available", __func__);
|
|
return;
|
|
}
|
|
|
|
/* if we are implementing XON/XOFF, send the start character */
|
|
if (I_IXOFF(tty)) {
|
|
unsigned char start_char = START_CHAR(tty);
|
|
status = ATEN2011_write(tty, port, &start_char, 1);
|
|
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 = set_uart_reg(port, MODEM_CONTROL_REGISTER,
|
|
ATEN2011_port->shadowMCR);
|
|
if (status < 0)
|
|
return;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
unsigned int result;
|
|
__u16 msr;
|
|
__u16 mcr;
|
|
/* unsigned int mcr; */
|
|
int status = 0;
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
dbg("%s - port %d", __func__, port->number);
|
|
|
|
if (ATEN2011_port == NULL)
|
|
return -ENODEV;
|
|
|
|
status = get_uart_reg(port, MODEM_STATUS_REGISTER, &msr);
|
|
status = 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);
|
|
|
|
dbg("%s - 0x%04X", __func__, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
|
|
unsigned int set, unsigned int clear)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
unsigned int mcr;
|
|
unsigned int status;
|
|
|
|
dbg("%s - port %d", __func__, port->number);
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(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 = set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
|
|
if (status < 0) {
|
|
dbg("setting MODEM_CONTROL_REGISTER Failed");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ATEN2011_set_termios(struct tty_struct *tty,
|
|
struct usb_serial_port *port,
|
|
struct ktermios *old_termios)
|
|
{
|
|
int status;
|
|
unsigned int cflag;
|
|
struct usb_serial *serial;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
|
|
dbg("ATEN2011_set_termios: START");
|
|
|
|
serial = port->serial;
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
if (ATEN2011_port == NULL)
|
|
return;
|
|
|
|
if (!ATEN2011_port->open) {
|
|
dbg("%s - port not opened", __func__);
|
|
return;
|
|
}
|
|
|
|
dbg("%s", "setting termios - ");
|
|
|
|
cflag = tty->termios->c_cflag;
|
|
|
|
if (!cflag) {
|
|
dbg("%s %s", __func__, "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))) {
|
|
dbg("%s", "Nothing to change");
|
|
return;
|
|
}
|
|
}
|
|
|
|
dbg("%s - clfag %08x iflag %08x", __func__,
|
|
tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag));
|
|
|
|
if (old_termios) {
|
|
dbg("%s - old clfag %08x old iflag %08x", __func__,
|
|
old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
|
|
}
|
|
|
|
dbg("%s - port %d", __func__, port->number);
|
|
|
|
/* change the port settings to the new ones specified */
|
|
|
|
ATEN2011_change_port_settings(tty, ATEN2011_port, old_termios);
|
|
|
|
if (!ATEN2011_port->read_urb) {
|
|
dbg("%s", "URB KILLED !!!!!");
|
|
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) {
|
|
dbg
|
|
(" usb_submit_urb(read bulk) failed, status = %d",
|
|
status);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
static int get_lsr_info(struct tty_struct *tty,
|
|
struct ATENINTL_port *ATEN2011_port,
|
|
unsigned int __user *value)
|
|
{
|
|
int count;
|
|
unsigned int result = 0;
|
|
|
|
count = ATEN2011_chars_in_buffer(tty);
|
|
if (count == 0) {
|
|
dbg("%s -- Empty", __func__);
|
|
result = TIOCSER_TEMT;
|
|
}
|
|
|
|
if (copy_to_user(value, &result, sizeof(int)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int get_number_bytes_avail(struct tty_struct *tty,
|
|
struct ATENINTL_port *ATEN2011_port,
|
|
unsigned int __user *value)
|
|
{
|
|
unsigned int result = 0;
|
|
|
|
if (!tty)
|
|
return -ENOIOCTLCMD;
|
|
|
|
result = tty->read_cnt;
|
|
|
|
dbg("%s(%d) = %d", __func__, ATEN2011_port->port->number, result);
|
|
if (copy_to_user(value, &result, sizeof(int)))
|
|
return -EFAULT;
|
|
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd,
|
|
unsigned int __user *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;
|
|
|
|
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 = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("setting MODEM_CONTROL_REGISTER Failed");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_modem_info(struct ATENINTL_port *ATEN2011_port,
|
|
unsigned int __user *value)
|
|
{
|
|
unsigned int result = 0;
|
|
__u16 msr;
|
|
unsigned int mcr = ATEN2011_port->shadowMCR;
|
|
int status;
|
|
|
|
status = 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", __func__, result);
|
|
|
|
if (copy_to_user(value, &result, sizeof(int)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int get_serial_info(struct ATENINTL_port *ATEN2011_port,
|
|
struct serial_struct __user *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;
|
|
}
|
|
|
|
static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
struct async_icount cnow;
|
|
struct async_icount cprev;
|
|
struct serial_icounter_struct icount;
|
|
int ATENret = 0;
|
|
unsigned int __user *user_arg = (unsigned int __user *)arg;
|
|
|
|
ATEN2011_port = usb_get_serial_port_data(port);
|
|
|
|
if (ATEN2011_port == NULL)
|
|
return -1;
|
|
|
|
dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
|
|
|
|
switch (cmd) {
|
|
/* return number of bytes available */
|
|
|
|
case TIOCINQ:
|
|
dbg("%s (%d) TIOCINQ", __func__, port->number);
|
|
return get_number_bytes_avail(tty, ATEN2011_port, user_arg);
|
|
break;
|
|
|
|
case TIOCOUTQ:
|
|
dbg("%s (%d) TIOCOUTQ", __func__, port->number);
|
|
return put_user(ATEN2011_chars_in_buffer(tty), user_arg);
|
|
break;
|
|
|
|
case TIOCSERGETLSR:
|
|
dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
|
|
return get_lsr_info(tty, ATEN2011_port, user_arg);
|
|
return 0;
|
|
|
|
case TIOCMBIS:
|
|
case TIOCMBIC:
|
|
case TIOCMSET:
|
|
dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __func__,
|
|
port->number);
|
|
ATENret = set_modem_info(ATEN2011_port, cmd, user_arg);
|
|
return ATENret;
|
|
|
|
case TIOCMGET:
|
|
dbg("%s (%d) TIOCMGET", __func__, port->number);
|
|
return get_modem_info(ATEN2011_port, user_arg);
|
|
|
|
case TIOCGSERIAL:
|
|
dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
|
|
return get_serial_info(ATEN2011_port,
|
|
(struct serial_struct __user *)arg);
|
|
|
|
case TIOCSSERIAL:
|
|
dbg("%s (%d) TIOCSSERIAL", __func__, port->number);
|
|
break;
|
|
|
|
case TIOCMIWAIT:
|
|
dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
|
|
cprev = ATEN2011_port->icount;
|
|
while (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", __func__,
|
|
port->number, icount.rx, icount.tx);
|
|
if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
|
|
return -EFAULT;
|
|
return 0;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
static int ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,
|
|
__u16 *clk_sel_val)
|
|
{
|
|
dbg("%s - %d", __func__, 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;
|
|
}
|
|
|
|
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;
|
|
|
|
dbg("%s", "Entering .......... ");
|
|
|
|
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", __func__,
|
|
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;
|
|
*/
|
|
/* Data = ATEN2011_port->shadowMCR; */
|
|
Data = 0x2b;
|
|
ATEN2011_port->shadowMCR = Data;
|
|
status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("Writing spreg failed in set_serial_baud");
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
} else {
|
|
#ifdef HW_flow_control
|
|
/* setting h/w flow control bit to 0; */
|
|
/* Data = ATEN2011_port->shadowMCR; */
|
|
Data = 0xb;
|
|
ATEN2011_port->shadowMCR = Data;
|
|
status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
|
|
if (status < 0) {
|
|
dbg("Writing spreg failed in set_serial_baud");
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
if (1) /* baudRate <= 115200) */ {
|
|
clk_sel_val = 0x0;
|
|
Data = 0x0;
|
|
status =
|
|
ATEN2011_calc_baud_rate_divisor(baudRate, &divisor,
|
|
&clk_sel_val);
|
|
status = get_reg_sync(port, ATEN2011_port->SpRegOffset, &Data);
|
|
if (status < 0) {
|
|
dbg("reading spreg failed in set_serial_baud");
|
|
return -1;
|
|
}
|
|
Data = (Data & 0x8f) | clk_sel_val;
|
|
status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
|
|
if (status < 0) {
|
|
dbg("Writing spreg failed in set_serial_baud");
|
|
return -1;
|
|
}
|
|
/* Calculate the Divisor */
|
|
|
|
if (status) {
|
|
err("%s - bad baud rate", __func__);
|
|
dbg("%s", "bad baud rate");
|
|
return status;
|
|
}
|
|
/* Enable access to divisor latch */
|
|
Data = ATEN2011_port->shadowLCR | SERIAL_LCR_DLAB;
|
|
ATEN2011_port->shadowLCR = Data;
|
|
set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
|
|
|
|
/* Write the divisor */
|
|
Data = (unsigned char)(divisor & 0xff);
|
|
dbg("set_serial_baud Value to write DLL is %x", Data);
|
|
set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
|
|
|
|
Data = (unsigned char)((divisor & 0xff00) >> 8);
|
|
dbg("set_serial_baud Value to write DLM is %x", Data);
|
|
set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
|
|
|
|
/* Disable access to divisor latch */
|
|
Data = ATEN2011_port->shadowLCR & ~SERIAL_LCR_DLAB;
|
|
ATEN2011_port->shadowLCR = Data;
|
|
set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
|
|
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static void ATEN2011_change_port_settings(struct tty_struct *tty,
|
|
struct ATENINTL_port *ATEN2011_port,
|
|
struct ktermios *old_termios)
|
|
{
|
|
int baud;
|
|
unsigned cflag;
|
|
unsigned iflag;
|
|
__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;
|
|
|
|
serial = port->serial;
|
|
|
|
dbg("%s - port %d", __func__, ATEN2011_port->port->number);
|
|
|
|
if (!ATEN2011_port->open) {
|
|
dbg("%s - port not opened", __func__);
|
|
return;
|
|
}
|
|
|
|
if ((!tty) || (!tty->termios)) {
|
|
dbg("%s - no tty structures", __func__);
|
|
return;
|
|
}
|
|
|
|
dbg("%s", "Entering .......... ");
|
|
|
|
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;
|
|
break;
|
|
|
|
case CS6:
|
|
lData = LCR_BITS_6;
|
|
break;
|
|
|
|
case CS7:
|
|
lData = LCR_BITS_7;
|
|
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", __func__);
|
|
} else {
|
|
lParity = LCR_PAR_EVEN;
|
|
dbg("%s - parity = even", __func__);
|
|
}
|
|
|
|
} else {
|
|
dbg("%s - parity = none", __func__);
|
|
}
|
|
|
|
if (cflag & CMSPAR)
|
|
lParity = lParity | 0x20;
|
|
|
|
/* Change the Stop bit */
|
|
if (cflag & CSTOPB) {
|
|
lStop = LCR_STOP_2;
|
|
dbg("%s - stop bits = 2", __func__);
|
|
} else {
|
|
lStop = LCR_STOP_1;
|
|
dbg("%s - stop bits = 1", __func__);
|
|
}
|
|
|
|
/* 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);
|
|
|
|
dbg
|
|
("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is %x",
|
|
ATEN2011_port->shadowLCR);
|
|
/* Disable Interrupts */
|
|
Data = 0x00;
|
|
set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
|
|
|
|
Data = 0x00;
|
|
set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
|
|
|
|
Data = 0xcf;
|
|
set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
|
|
|
|
/* Send the updated LCR value to the ATEN2011 */
|
|
Data = ATEN2011_port->shadowLCR;
|
|
|
|
set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
|
|
|
|
Data = 0x00b;
|
|
ATEN2011_port->shadowMCR = Data;
|
|
set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
|
|
Data = 0x00b;
|
|
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;
|
|
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... */
|
|
dbg("%s", "Picked default baud...");
|
|
baud = 9600;
|
|
}
|
|
|
|
dbg("%s - baud rate = %d", __func__, baud);
|
|
status = ATEN2011_send_cmd_write_baud_rate(ATEN2011_port, baud);
|
|
|
|
/* Enable Interrupts */
|
|
Data = 0x0c;
|
|
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) {
|
|
dbg
|
|
(" usb_submit_urb(read bulk) failed, status = %d",
|
|
status);
|
|
}
|
|
}
|
|
dbg
|
|
("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is End %x",
|
|
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);
|
|
|
|
/* 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;
|
|
}
|
|
|
|
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;
|
|
dbg("%s", " ATEN2011_startup :entering..........");
|
|
|
|
if (!serial) {
|
|
dbg("%s", "Invalid Handler");
|
|
return -1;
|
|
}
|
|
|
|
dev = serial->dev;
|
|
|
|
dbg("%s", "Entering...");
|
|
|
|
/* create our private serial structure */
|
|
ATEN2011_serial = kzalloc(sizeof(struct ATENINTL_serial), GFP_KERNEL);
|
|
if (ATEN2011_serial == NULL) {
|
|
err("%s - Out of memory", __func__);
|
|
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 0 */
|
|
ATEN2011_serial->status_polling_started = 0;
|
|
|
|
usb_set_serial_data(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", __func__);
|
|
usb_set_serial_data(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];
|
|
usb_set_serial_port_data(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);
|
|
|
|
if (ATEN2011_port->port_num == 1) {
|
|
ATEN2011_port->SpRegOffset = 0x0;
|
|
ATEN2011_port->ControlRegOffset = 0x1;
|
|
ATEN2011_port->DcrRegOffset = 0x4;
|
|
} 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;
|
|
} 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;
|
|
} 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;
|
|
} 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;
|
|
}
|
|
|
|
usb_set_serial_port_data(serial->port[i], ATEN2011_port);
|
|
|
|
/* enable rx_disable bit in control register */
|
|
|
|
status = get_reg_sync(serial->port[i],
|
|
ATEN2011_port->ControlRegOffset, &Data);
|
|
if (status < 0) {
|
|
dbg("Reading ControlReg failed status-0x%x",
|
|
status);
|
|
break;
|
|
} else
|
|
dbg
|
|
("ControlReg Reading success val is %x, status%d",
|
|
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 = set_reg_sync(serial->port[i],
|
|
ATEN2011_port->ControlRegOffset, Data);
|
|
if (status < 0) {
|
|
dbg
|
|
("Writing ControlReg failed(rx_disable) status-0x%x",
|
|
status);
|
|
break;
|
|
} else
|
|
dbg
|
|
("ControlReg Writing success(rx_disable) status%d",
|
|
status);
|
|
|
|
/*
|
|
* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2
|
|
* and 0x24 in DCR3
|
|
*/
|
|
Data = 0x01;
|
|
status = set_reg_sync(serial->port[i],
|
|
(__u16)(ATEN2011_port->DcrRegOffset + 0),
|
|
Data);
|
|
if (status < 0) {
|
|
dbg("Writing DCR0 failed status-0x%x", status);
|
|
break;
|
|
} else
|
|
dbg("DCR0 Writing success status%d", status);
|
|
|
|
Data = 0x05;
|
|
status = set_reg_sync(serial->port[i],
|
|
(__u16)(ATEN2011_port->DcrRegOffset + 1),
|
|
Data);
|
|
if (status < 0) {
|
|
dbg("Writing DCR1 failed status-0x%x", status);
|
|
break;
|
|
} else
|
|
dbg("DCR1 Writing success status%d", status);
|
|
|
|
Data = 0x24;
|
|
status = set_reg_sync(serial->port[i],
|
|
(__u16)(ATEN2011_port->DcrRegOffset + 2),
|
|
Data);
|
|
if (status < 0) {
|
|
dbg("Writing DCR2 failed status-0x%x", status);
|
|
break;
|
|
} else
|
|
dbg("DCR2 Writing success status%d", status);
|
|
|
|
/* write values in clkstart0x0 and clkmulti 0x20 */
|
|
Data = 0x0;
|
|
status = set_reg_sync(serial->port[i], CLK_START_VALUE_REGISTER,
|
|
Data);
|
|
if (status < 0) {
|
|
dbg
|
|
("Writing CLK_START_VALUE_REGISTER failed status-0x%x",
|
|
status);
|
|
break;
|
|
} else
|
|
dbg
|
|
("CLK_START_VALUE_REGISTER Writing success status%d",
|
|
status);
|
|
|
|
Data = 0x20;
|
|
status = set_reg_sync(serial->port[i], CLK_MULTI_REGISTER,
|
|
Data);
|
|
if (status < 0) {
|
|
dbg
|
|
("Writing CLK_MULTI_REGISTER failed status-0x%x",
|
|
status);
|
|
break;
|
|
} else
|
|
dbg("CLK_MULTI_REGISTER Writing success status%d",
|
|
status);
|
|
|
|
/* Zero Length flag register */
|
|
if ((ATEN2011_port->port_num != 1)
|
|
&& (ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2)) {
|
|
|
|
Data = 0xff;
|
|
status = set_reg_sync(serial->port[i],
|
|
(__u16)(ZLP_REG1 + ((__u16)ATEN2011_port->port_num)),
|
|
Data);
|
|
dbg("ZLIP offset%x",
|
|
(__u16) (ZLP_REG1 +
|
|
((__u16) ATEN2011_port->port_num)));
|
|
if (status < 0) {
|
|
dbg
|
|
("Writing ZLP_REG%d failed status-0x%x",
|
|
i + 2, status);
|
|
break;
|
|
} else
|
|
dbg("ZLP_REG%d Writing success status%d",
|
|
i + 2, status);
|
|
} else {
|
|
Data = 0xff;
|
|
status = set_reg_sync(serial->port[i],
|
|
(__u16)(ZLP_REG1 + ((__u16)ATEN2011_port->port_num) - 0x1),
|
|
Data);
|
|
dbg("ZLIP offset%x",
|
|
(__u16) (ZLP_REG1 +
|
|
((__u16) ATEN2011_port->port_num) -
|
|
0x1));
|
|
if (status < 0) {
|
|
dbg
|
|
("Writing ZLP_REG%d failed status-0x%x",
|
|
i + 1, status);
|
|
break;
|
|
} else
|
|
dbg("ZLP_REG%d Writing success status%d",
|
|
i + 1, status);
|
|
|
|
}
|
|
ATEN2011_port->control_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
ATEN2011_port->ctrl_buf = kmalloc(16, GFP_KERNEL);
|
|
|
|
}
|
|
|
|
/* Zero Length flag enable */
|
|
Data = 0x0f;
|
|
status = set_reg_sync(serial->port[0], ZLP_REG5, Data);
|
|
if (status < 0) {
|
|
dbg("Writing ZLP_REG5 failed status-0x%x", status);
|
|
return -1;
|
|
} else
|
|
dbg("ZLP_REG5 Writing success status%d", status);
|
|
|
|
/* setting configuration feature to one */
|
|
usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
(__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5 * HZ);
|
|
return 0;
|
|
}
|
|
|
|
static void ATEN2011_shutdown(struct usb_serial *serial)
|
|
{
|
|
int i;
|
|
struct ATENINTL_port *ATEN2011_port;
|
|
|
|
/* 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 = usb_get_serial_port_data(serial->port[i]);
|
|
kfree(ATEN2011_port->ctrl_buf);
|
|
usb_kill_urb(ATEN2011_port->control_urb);
|
|
kfree(ATEN2011_port);
|
|
usb_set_serial_port_data(serial->port[i], NULL);
|
|
}
|
|
|
|
/* free private structure allocated for serial device */
|
|
|
|
kfree(usb_get_serial_data(serial));
|
|
usb_set_serial_data(serial, NULL);
|
|
}
|
|
|
|
static struct usb_serial_driver aten_serial_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "aten2011",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = 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,
|
|
|
|
.ioctl = ATEN2011_ioctl,
|
|
.set_termios = ATEN2011_set_termios,
|
|
.break_ctl = ATEN2011_break,
|
|
.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 aten_driver = {
|
|
.name = "aten2011",
|
|
.probe = usb_serial_probe,
|
|
.disconnect = usb_serial_disconnect,
|
|
.id_table = id_table,
|
|
};
|
|
|
|
static int __init aten_init(void)
|
|
{
|
|
int retval;
|
|
|
|
/* Register with the usb serial */
|
|
retval = usb_serial_register(&aten_serial_driver);
|
|
if (retval)
|
|
return retval;
|
|
|
|
printk(KERN_INFO KBUILD_MODNAME ":"
|
|
DRIVER_DESC " " DRIVER_VERSION "\n");
|
|
|
|
/* Register with the usb */
|
|
retval = usb_register(&aten_driver);
|
|
if (retval)
|
|
usb_serial_deregister(&aten_serial_driver);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static void __exit aten_exit(void)
|
|
{
|
|
usb_deregister(&aten_driver);
|
|
usb_serial_deregister(&aten_serial_driver);
|
|
}
|
|
|
|
module_init(aten_init);
|
|
module_exit(aten_exit);
|
|
|
|
/* Module information */
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_PARM_DESC(debug, "Debug enabled or not");
|