mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
bcbec053d2
Remove all MODULE_VERSION macros and driver-version information (except for garmin_gps which uses it in a status reply). It is the kernel version that matters and not some private version scheme which rarely even gets updated. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
652 lines
17 KiB
C
652 lines
17 KiB
C
/*
|
|
* spcp8x5 USB to serial adaptor driver
|
|
*
|
|
* Copyright (C) 2010 Johan Hovold (jhovold@gmail.com)
|
|
* Copyright (C) 2006 Linxb (xubin.lin@worldplus.com.cn)
|
|
* Copyright (C) 2006 S1 Corp.
|
|
*
|
|
* Original driver for 2.6.10 pl2303 driver by
|
|
* Greg Kroah-Hartman (greg@kroah.com)
|
|
* Changes for 2.6.20 by Harald Klein <hari@vt100.at>
|
|
*
|
|
* 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/spinlock.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/usb/serial.h>
|
|
|
|
#define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver"
|
|
|
|
#define SPCP8x5_007_VID 0x04FC
|
|
#define SPCP8x5_007_PID 0x0201
|
|
#define SPCP8x5_008_VID 0x04fc
|
|
#define SPCP8x5_008_PID 0x0235
|
|
#define SPCP8x5_PHILIPS_VID 0x0471
|
|
#define SPCP8x5_PHILIPS_PID 0x081e
|
|
#define SPCP8x5_INTERMATIC_VID 0x04FC
|
|
#define SPCP8x5_INTERMATIC_PID 0x0204
|
|
#define SPCP8x5_835_VID 0x04fc
|
|
#define SPCP8x5_835_PID 0x0231
|
|
|
|
static const struct usb_device_id id_table[] = {
|
|
{ USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)},
|
|
{ USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)},
|
|
{ USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)},
|
|
{ USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)},
|
|
{ USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID)},
|
|
{ } /* Terminating entry */
|
|
};
|
|
MODULE_DEVICE_TABLE(usb, id_table);
|
|
|
|
struct spcp8x5_usb_ctrl_arg {
|
|
u8 type;
|
|
u8 cmd;
|
|
u8 cmd_type;
|
|
u16 value;
|
|
u16 index;
|
|
u16 length;
|
|
};
|
|
|
|
|
|
/* spcp8x5 spec register define */
|
|
#define MCR_CONTROL_LINE_RTS 0x02
|
|
#define MCR_CONTROL_LINE_DTR 0x01
|
|
#define MCR_DTR 0x01
|
|
#define MCR_RTS 0x02
|
|
|
|
#define MSR_STATUS_LINE_DCD 0x80
|
|
#define MSR_STATUS_LINE_RI 0x40
|
|
#define MSR_STATUS_LINE_DSR 0x20
|
|
#define MSR_STATUS_LINE_CTS 0x10
|
|
|
|
/* verdor command here , we should define myself */
|
|
#define SET_DEFAULT 0x40
|
|
#define SET_DEFAULT_TYPE 0x20
|
|
|
|
#define SET_UART_FORMAT 0x40
|
|
#define SET_UART_FORMAT_TYPE 0x21
|
|
#define SET_UART_FORMAT_SIZE_5 0x00
|
|
#define SET_UART_FORMAT_SIZE_6 0x01
|
|
#define SET_UART_FORMAT_SIZE_7 0x02
|
|
#define SET_UART_FORMAT_SIZE_8 0x03
|
|
#define SET_UART_FORMAT_STOP_1 0x00
|
|
#define SET_UART_FORMAT_STOP_2 0x04
|
|
#define SET_UART_FORMAT_PAR_NONE 0x00
|
|
#define SET_UART_FORMAT_PAR_ODD 0x10
|
|
#define SET_UART_FORMAT_PAR_EVEN 0x30
|
|
#define SET_UART_FORMAT_PAR_MASK 0xD0
|
|
#define SET_UART_FORMAT_PAR_SPACE 0x90
|
|
|
|
#define GET_UART_STATUS_TYPE 0xc0
|
|
#define GET_UART_STATUS 0x22
|
|
#define GET_UART_STATUS_MSR 0x06
|
|
|
|
#define SET_UART_STATUS 0x40
|
|
#define SET_UART_STATUS_TYPE 0x23
|
|
#define SET_UART_STATUS_MCR 0x0004
|
|
#define SET_UART_STATUS_MCR_DTR 0x01
|
|
#define SET_UART_STATUS_MCR_RTS 0x02
|
|
#define SET_UART_STATUS_MCR_LOOP 0x10
|
|
|
|
#define SET_WORKING_MODE 0x40
|
|
#define SET_WORKING_MODE_TYPE 0x24
|
|
#define SET_WORKING_MODE_U2C 0x00
|
|
#define SET_WORKING_MODE_RS485 0x01
|
|
#define SET_WORKING_MODE_PDMA 0x02
|
|
#define SET_WORKING_MODE_SPP 0x03
|
|
|
|
#define SET_FLOWCTL_CHAR 0x40
|
|
#define SET_FLOWCTL_CHAR_TYPE 0x25
|
|
|
|
#define GET_VERSION 0xc0
|
|
#define GET_VERSION_TYPE 0x26
|
|
|
|
#define SET_REGISTER 0x40
|
|
#define SET_REGISTER_TYPE 0x27
|
|
|
|
#define GET_REGISTER 0xc0
|
|
#define GET_REGISTER_TYPE 0x28
|
|
|
|
#define SET_RAM 0x40
|
|
#define SET_RAM_TYPE 0x31
|
|
|
|
#define GET_RAM 0xc0
|
|
#define GET_RAM_TYPE 0x32
|
|
|
|
/* how come ??? */
|
|
#define UART_STATE 0x08
|
|
#define UART_STATE_TRANSIENT_MASK 0x75
|
|
#define UART_DCD 0x01
|
|
#define UART_DSR 0x02
|
|
#define UART_BREAK_ERROR 0x04
|
|
#define UART_RING 0x08
|
|
#define UART_FRAME_ERROR 0x10
|
|
#define UART_PARITY_ERROR 0x20
|
|
#define UART_OVERRUN_ERROR 0x40
|
|
#define UART_CTS 0x80
|
|
|
|
enum spcp8x5_type {
|
|
SPCP825_007_TYPE,
|
|
SPCP825_008_TYPE,
|
|
SPCP825_PHILIP_TYPE,
|
|
SPCP825_INTERMATIC_TYPE,
|
|
SPCP835_TYPE,
|
|
};
|
|
|
|
struct spcp8x5_private {
|
|
spinlock_t lock;
|
|
enum spcp8x5_type type;
|
|
wait_queue_head_t delta_msr_wait;
|
|
u8 line_control;
|
|
u8 line_status;
|
|
};
|
|
|
|
static int spcp8x5_port_probe(struct usb_serial_port *port)
|
|
{
|
|
struct usb_serial *serial = port->serial;
|
|
struct spcp8x5_private *priv;
|
|
enum spcp8x5_type type = SPCP825_007_TYPE;
|
|
u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
|
|
|
|
if (product == 0x0201)
|
|
type = SPCP825_007_TYPE;
|
|
else if (product == 0x0231)
|
|
type = SPCP835_TYPE;
|
|
else if (product == 0x0235)
|
|
type = SPCP825_008_TYPE;
|
|
else if (product == 0x0204)
|
|
type = SPCP825_INTERMATIC_TYPE;
|
|
else if (product == 0x0471 &&
|
|
serial->dev->descriptor.idVendor == cpu_to_le16(0x081e))
|
|
type = SPCP825_PHILIP_TYPE;
|
|
dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type);
|
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_init(&priv->lock);
|
|
init_waitqueue_head(&priv->delta_msr_wait);
|
|
priv->type = type;
|
|
|
|
usb_set_serial_port_data(port , priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int spcp8x5_port_remove(struct usb_serial_port *port)
|
|
{
|
|
struct spcp8x5_private *priv;
|
|
|
|
priv = usb_get_serial_port_data(port);
|
|
kfree(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* set the modem control line of the device.
|
|
* NOTE spcp825-007 not supported this */
|
|
static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value,
|
|
enum spcp8x5_type type)
|
|
{
|
|
int retval;
|
|
u8 mcr = 0 ;
|
|
|
|
if (type == SPCP825_007_TYPE)
|
|
return -EPERM;
|
|
|
|
mcr = (unsigned short)value;
|
|
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
|
SET_UART_STATUS_TYPE, SET_UART_STATUS,
|
|
mcr, 0x04, NULL, 0, 100);
|
|
if (retval != 0)
|
|
dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval);
|
|
return retval;
|
|
}
|
|
|
|
/* get the modem status register of the device
|
|
* NOTE spcp825-007 not supported this */
|
|
static int spcp8x5_get_msr(struct usb_device *dev, u8 *status,
|
|
enum spcp8x5_type type)
|
|
{
|
|
u8 *status_buffer;
|
|
int ret;
|
|
|
|
/* I return Permited not support here but seem inval device
|
|
* is more fix */
|
|
if (type == SPCP825_007_TYPE)
|
|
return -EPERM;
|
|
if (status == NULL)
|
|
return -EINVAL;
|
|
|
|
status_buffer = kmalloc(1, GFP_KERNEL);
|
|
if (!status_buffer)
|
|
return -ENOMEM;
|
|
status_buffer[0] = status[0];
|
|
|
|
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
|
|
GET_UART_STATUS, GET_UART_STATUS_TYPE,
|
|
0, GET_UART_STATUS_MSR, status_buffer, 1, 100);
|
|
if (ret < 0)
|
|
dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)",
|
|
status_buffer, ret);
|
|
|
|
dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer);
|
|
status[0] = status_buffer[0];
|
|
kfree(status_buffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* select the work mode.
|
|
* NOTE this function not supported by spcp825-007 */
|
|
static void spcp8x5_set_workMode(struct usb_device *dev, u16 value,
|
|
u16 index, enum spcp8x5_type type)
|
|
{
|
|
int ret;
|
|
|
|
/* I return Permited not support here but seem inval device
|
|
* is more fix */
|
|
if (type == SPCP825_007_TYPE)
|
|
return;
|
|
|
|
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
|
SET_WORKING_MODE_TYPE, SET_WORKING_MODE,
|
|
value, index, NULL, 0, 100);
|
|
dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index);
|
|
if (ret < 0)
|
|
dev_dbg(&dev->dev,
|
|
"RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret);
|
|
}
|
|
|
|
static int spcp8x5_carrier_raised(struct usb_serial_port *port)
|
|
{
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
if (priv->line_status & MSR_STATUS_LINE_DCD)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on)
|
|
{
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
u8 control;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if (on)
|
|
priv->line_control = MCR_CONTROL_LINE_DTR
|
|
| MCR_CONTROL_LINE_RTS;
|
|
else
|
|
priv->line_control &= ~ (MCR_CONTROL_LINE_DTR
|
|
| MCR_CONTROL_LINE_RTS);
|
|
control = priv->line_control;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type);
|
|
}
|
|
|
|
static void spcp8x5_init_termios(struct tty_struct *tty)
|
|
{
|
|
/* for the 1st time call this function */
|
|
tty->termios = tty_std_termios;
|
|
tty->termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
|
|
tty->termios.c_ispeed = 115200;
|
|
tty->termios.c_ospeed = 115200;
|
|
}
|
|
|
|
/* set the serial param for transfer. we should check if we really need to
|
|
* transfer. if we set flow control we should do this too. */
|
|
static void spcp8x5_set_termios(struct tty_struct *tty,
|
|
struct usb_serial_port *port, struct ktermios *old_termios)
|
|
{
|
|
struct usb_serial *serial = port->serial;
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
unsigned int cflag = tty->termios.c_cflag;
|
|
unsigned int old_cflag = old_termios->c_cflag;
|
|
unsigned short uartdata;
|
|
unsigned char buf[2] = {0, 0};
|
|
int baud;
|
|
int i;
|
|
u8 control;
|
|
|
|
|
|
/* check that they really want us to change something */
|
|
if (!tty_termios_hw_change(&tty->termios, old_termios))
|
|
return;
|
|
|
|
/* set DTR/RTS active */
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
control = priv->line_control;
|
|
if ((old_cflag & CBAUD) == B0) {
|
|
priv->line_control |= MCR_DTR;
|
|
if (!(old_cflag & CRTSCTS))
|
|
priv->line_control |= MCR_RTS;
|
|
}
|
|
if (control != priv->line_control) {
|
|
control = priv->line_control;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
spcp8x5_set_ctrlLine(serial->dev, control , priv->type);
|
|
} else {
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
}
|
|
|
|
/* Set Baud Rate */
|
|
baud = tty_get_baud_rate(tty);
|
|
switch (baud) {
|
|
case 300: buf[0] = 0x00; break;
|
|
case 600: buf[0] = 0x01; break;
|
|
case 1200: buf[0] = 0x02; break;
|
|
case 2400: buf[0] = 0x03; break;
|
|
case 4800: buf[0] = 0x04; break;
|
|
case 9600: buf[0] = 0x05; break;
|
|
case 19200: buf[0] = 0x07; break;
|
|
case 38400: buf[0] = 0x09; break;
|
|
case 57600: buf[0] = 0x0a; break;
|
|
case 115200: buf[0] = 0x0b; break;
|
|
case 230400: buf[0] = 0x0c; break;
|
|
case 460800: buf[0] = 0x0d; break;
|
|
case 921600: buf[0] = 0x0e; break;
|
|
/* case 1200000: buf[0] = 0x0f; break; */
|
|
/* case 2400000: buf[0] = 0x10; break; */
|
|
case 3000000: buf[0] = 0x11; break;
|
|
/* case 6000000: buf[0] = 0x12; break; */
|
|
case 0:
|
|
case 1000000:
|
|
buf[0] = 0x0b; break;
|
|
default:
|
|
dev_err(&port->dev, "spcp825 driver does not support the "
|
|
"baudrate requested, using default of 9600.\n");
|
|
}
|
|
|
|
/* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */
|
|
if (cflag & CSIZE) {
|
|
switch (cflag & CSIZE) {
|
|
case CS5:
|
|
buf[1] |= SET_UART_FORMAT_SIZE_5;
|
|
break;
|
|
case CS6:
|
|
buf[1] |= SET_UART_FORMAT_SIZE_6;
|
|
break;
|
|
case CS7:
|
|
buf[1] |= SET_UART_FORMAT_SIZE_7;
|
|
break;
|
|
default:
|
|
case CS8:
|
|
buf[1] |= SET_UART_FORMAT_SIZE_8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Set Stop bit2 : 0:1bit 1:2bit */
|
|
buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 :
|
|
SET_UART_FORMAT_STOP_1;
|
|
|
|
/* Set Parity bit3-4 01:Odd 11:Even */
|
|
if (cflag & PARENB) {
|
|
buf[1] |= (cflag & PARODD) ?
|
|
SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ;
|
|
} else
|
|
buf[1] |= SET_UART_FORMAT_PAR_NONE;
|
|
|
|
uartdata = buf[0] | buf[1]<<8;
|
|
|
|
i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
SET_UART_FORMAT_TYPE, SET_UART_FORMAT,
|
|
uartdata, 0, NULL, 0, 100);
|
|
if (i < 0)
|
|
dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n",
|
|
uartdata, i);
|
|
dev_dbg(&port->dev, "0x21:0x40:0:0 %d\n", i);
|
|
|
|
if (cflag & CRTSCTS) {
|
|
/* enable hardware flow control */
|
|
spcp8x5_set_workMode(serial->dev, 0x000a,
|
|
SET_WORKING_MODE_U2C, priv->type);
|
|
}
|
|
}
|
|
|
|
/* open the serial port. do some usb system call. set termios and get the line
|
|
* status of the device. */
|
|
static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
|
|
{
|
|
struct ktermios tmp_termios;
|
|
struct usb_serial *serial = port->serial;
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
int ret;
|
|
unsigned long flags;
|
|
u8 status = 0x30;
|
|
/* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */
|
|
|
|
usb_clear_halt(serial->dev, port->write_urb->pipe);
|
|
usb_clear_halt(serial->dev, port->read_urb->pipe);
|
|
|
|
ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
0x09, 0x00,
|
|
0x01, 0x00, NULL, 0x00, 100);
|
|
if (ret)
|
|
return ret;
|
|
|
|
spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type);
|
|
|
|
/* Setup termios */
|
|
if (tty)
|
|
spcp8x5_set_termios(tty, port, &tmp_termios);
|
|
|
|
spcp8x5_get_msr(serial->dev, &status, priv->type);
|
|
|
|
/* may be we should update uart status here but now we did not do */
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
priv->line_status = status & 0xf0 ;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
port->port.drain_delay = 256;
|
|
|
|
return usb_serial_generic_open(tty, port);
|
|
}
|
|
|
|
static void spcp8x5_process_read_urb(struct urb *urb)
|
|
{
|
|
struct usb_serial_port *port = urb->context;
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
struct tty_struct *tty;
|
|
unsigned char *data = urb->transfer_buffer;
|
|
unsigned long flags;
|
|
u8 status;
|
|
char tty_flag;
|
|
|
|
/* get tty_flag from status */
|
|
tty_flag = TTY_NORMAL;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
status = priv->line_status;
|
|
priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
/* wake up the wait for termios */
|
|
wake_up_interruptible(&priv->delta_msr_wait);
|
|
|
|
if (!urb->actual_length)
|
|
return;
|
|
|
|
tty = tty_port_tty_get(&port->port);
|
|
if (!tty)
|
|
return;
|
|
|
|
if (status & UART_STATE_TRANSIENT_MASK) {
|
|
/* break takes precedence over parity, which takes precedence
|
|
* over framing errors */
|
|
if (status & UART_BREAK_ERROR)
|
|
tty_flag = TTY_BREAK;
|
|
else if (status & UART_PARITY_ERROR)
|
|
tty_flag = TTY_PARITY;
|
|
else if (status & UART_FRAME_ERROR)
|
|
tty_flag = TTY_FRAME;
|
|
dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag);
|
|
|
|
/* overrun is special, not associated with a char */
|
|
if (status & UART_OVERRUN_ERROR)
|
|
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
|
|
|
|
if (status & UART_DCD)
|
|
usb_serial_handle_dcd_change(port, tty,
|
|
priv->line_status & MSR_STATUS_LINE_DCD);
|
|
}
|
|
|
|
tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
|
|
urb->actual_length);
|
|
tty_flip_buffer_push(tty);
|
|
tty_kref_put(tty);
|
|
}
|
|
|
|
static int spcp8x5_wait_modem_info(struct usb_serial_port *port,
|
|
unsigned int arg)
|
|
{
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
unsigned int prevstatus;
|
|
unsigned int status;
|
|
unsigned int changed;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
prevstatus = priv->line_status;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
while (1) {
|
|
/* wake up in bulk read */
|
|
interruptible_sleep_on(&priv->delta_msr_wait);
|
|
|
|
/* see if a signal did it */
|
|
if (signal_pending(current))
|
|
return -ERESTARTSYS;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
status = priv->line_status;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
changed = prevstatus^status;
|
|
|
|
if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) ||
|
|
((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) ||
|
|
((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) ||
|
|
((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS)))
|
|
return 0;
|
|
|
|
prevstatus = status;
|
|
}
|
|
/* NOTREACHED */
|
|
return 0;
|
|
}
|
|
|
|
static int spcp8x5_ioctl(struct tty_struct *tty,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
|
|
dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__,
|
|
port->number, cmd);
|
|
|
|
switch (cmd) {
|
|
case TIOCMIWAIT:
|
|
dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__,
|
|
port->number);
|
|
return spcp8x5_wait_modem_info(port, arg);
|
|
|
|
default:
|
|
dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__,
|
|
cmd);
|
|
break;
|
|
}
|
|
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
static int spcp8x5_tiocmset(struct tty_struct *tty,
|
|
unsigned int set, unsigned int clear)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
u8 control;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if (set & TIOCM_RTS)
|
|
priv->line_control |= MCR_RTS;
|
|
if (set & TIOCM_DTR)
|
|
priv->line_control |= MCR_DTR;
|
|
if (clear & TIOCM_RTS)
|
|
priv->line_control &= ~MCR_RTS;
|
|
if (clear & TIOCM_DTR)
|
|
priv->line_control &= ~MCR_DTR;
|
|
control = priv->line_control;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type);
|
|
}
|
|
|
|
static int spcp8x5_tiocmget(struct tty_struct *tty)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
unsigned int mcr;
|
|
unsigned int status;
|
|
unsigned int result;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
mcr = priv->line_control;
|
|
status = priv->line_status;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
|
|
| ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
|
|
| ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0)
|
|
| ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0)
|
|
| ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0)
|
|
| ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0);
|
|
|
|
return result;
|
|
}
|
|
|
|
/* All of the device info needed for the spcp8x5 SIO serial converter */
|
|
static struct usb_serial_driver spcp8x5_device = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "SPCP8x5",
|
|
},
|
|
.id_table = id_table,
|
|
.num_ports = 1,
|
|
.open = spcp8x5_open,
|
|
.dtr_rts = spcp8x5_dtr_rts,
|
|
.carrier_raised = spcp8x5_carrier_raised,
|
|
.set_termios = spcp8x5_set_termios,
|
|
.init_termios = spcp8x5_init_termios,
|
|
.ioctl = spcp8x5_ioctl,
|
|
.tiocmget = spcp8x5_tiocmget,
|
|
.tiocmset = spcp8x5_tiocmset,
|
|
.port_probe = spcp8x5_port_probe,
|
|
.port_remove = spcp8x5_port_remove,
|
|
.process_read_urb = spcp8x5_process_read_urb,
|
|
};
|
|
|
|
static struct usb_serial_driver * const serial_drivers[] = {
|
|
&spcp8x5_device, NULL
|
|
};
|
|
|
|
module_usb_serial_driver(serial_drivers, id_table);
|
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|