mirror of
https://github.com/followmsi/android_kernel_google_msm.git
synced 2024-11-06 23:17:41 +00:00
tty-usb-ipw: Coding style
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
Linus Torvalds
parent
eb6215ccd4
commit
6d1d169896
1 changed files with 144 additions and 135 deletions
|
|
@ -10,27 +10,27 @@
|
|||
* (at your option) any later version.
|
||||
*
|
||||
* All information about the device was acquired using SnoopyPro
|
||||
* on MSFT's O/S, and examing the MSFT drivers' debug output
|
||||
* on MSFT's O/S, and examing the MSFT drivers' debug output
|
||||
* (insanely left _on_ in the enduser version)
|
||||
*
|
||||
* It was written out of frustration with the IPWireless USB modem
|
||||
* supplied by Axity3G/Sentech South Africa not supporting
|
||||
* Linux whatsoever.
|
||||
*
|
||||
* Nobody provided any proprietary information that was not already
|
||||
* Nobody provided any proprietary information that was not already
|
||||
* available for this device.
|
||||
*
|
||||
* The modem adheres to the "3GPP TS 27.007 AT command set for 3G
|
||||
* User Equipment (UE)" standard, available from
|
||||
*
|
||||
* The modem adheres to the "3GPP TS 27.007 AT command set for 3G
|
||||
* User Equipment (UE)" standard, available from
|
||||
* http://www.3gpp.org/ftp/Specs/html-info/27007.htm
|
||||
*
|
||||
* The code was only tested the IPWireless handheld modem distributed
|
||||
* in South Africa by Sentech.
|
||||
*
|
||||
*
|
||||
* It may work for Woosh Inc in .nz too, as it appears they use the
|
||||
* same kit.
|
||||
*
|
||||
* There is still some work to be done in terms of handling
|
||||
* There is still some work to be done in terms of handling
|
||||
* DCD, DTR, RTS, CTS which are currently faked.
|
||||
* It's good enough for PPP at this point. It's based off all kinds of
|
||||
* code found in usb/serial and usb/class
|
||||
|
|
@ -47,7 +47,7 @@
|
|||
#include <linux/spinlock.h>
|
||||
#include <linux/usb.h>
|
||||
#include <linux/usb/serial.h>
|
||||
#include <asm/uaccess.h>
|
||||
#include <linux/uaccess.h>
|
||||
|
||||
/*
|
||||
* Version Information
|
||||
|
|
@ -64,7 +64,7 @@
|
|||
|
||||
/* Message sizes */
|
||||
#define EVENT_BUFFER_SIZE 0xFF
|
||||
#define CHAR2INT16(c1,c0) (((u32)((c1) & 0xff) << 8) + (u32)((c0) & 0xff))
|
||||
#define CHAR2INT16(c1, c0) (((u32)((c1) & 0xff) << 8) + (u32)((c0) & 0xff))
|
||||
#define NUM_BULK_URBS 24
|
||||
#define NUM_CONTROL_URBS 16
|
||||
|
||||
|
|
@ -94,33 +94,34 @@ enum {
|
|||
|
||||
/* data bits */
|
||||
#define ipw_dtb_7 0x700
|
||||
#define ipw_dtb_8 0x810 // ok so the define is misleading, I know, but forces 8,n,1
|
||||
// I mean, is there a point to any other setting these days? :)
|
||||
#define ipw_dtb_8 0x810 /* ok so the define is misleading, I know, but forces 8,n,1 */
|
||||
/* I mean, is there a point to any other setting these days? :) */
|
||||
|
||||
/* usb control request types : */
|
||||
#define IPW_SIO_RXCTL 0x00 // control bulk rx channel transmissions, value=1/0 (on/off)
|
||||
#define IPW_SIO_SET_BAUD 0x01 // set baud, value=requested ipw_sio_bxxxx
|
||||
#define IPW_SIO_SET_LINE 0x03 // set databits, parity. value=ipw_dtb_x
|
||||
#define IPW_SIO_SET_PIN 0x03 // set/clear dtr/rts value=ipw_pin_xxx
|
||||
#define IPW_SIO_POLL 0x08 // get serial port status byte, call with value=0
|
||||
#define IPW_SIO_INIT 0x11 // initializes ? value=0 (appears as first thing todo on open)
|
||||
#define IPW_SIO_PURGE 0x12 // purge all transmissions?, call with value=numchar_to_purge
|
||||
#define IPW_SIO_HANDFLOW 0x13 // set xon/xoff limits value=0, and a buffer of 0x10 bytes
|
||||
#define IPW_SIO_SETCHARS 0x13 // set the flowcontrol special chars, value=0, buf=6 bytes,
|
||||
// last 2 bytes contain flowcontrol chars e.g. 00 00 00 00 11 13
|
||||
#define IPW_SIO_RXCTL 0x00 /* control bulk rx channel transmissions, value=1/0 (on/off) */
|
||||
#define IPW_SIO_SET_BAUD 0x01 /* set baud, value=requested ipw_sio_bxxxx */
|
||||
#define IPW_SIO_SET_LINE 0x03 /* set databits, parity. value=ipw_dtb_x */
|
||||
#define IPW_SIO_SET_PIN 0x03 /* set/clear dtr/rts value=ipw_pin_xxx */
|
||||
#define IPW_SIO_POLL 0x08 /* get serial port status byte, call with value=0 */
|
||||
#define IPW_SIO_INIT 0x11 /* initializes ? value=0 (appears as first thing todo on open) */
|
||||
#define IPW_SIO_PURGE 0x12 /* purge all transmissions?, call with value=numchar_to_purge */
|
||||
#define IPW_SIO_HANDFLOW 0x13 /* set xon/xoff limits value=0, and a buffer of 0x10 bytes */
|
||||
#define IPW_SIO_SETCHARS 0x13 /* set the flowcontrol special chars, value=0, buf=6 bytes, */
|
||||
/* last 2 bytes contain flowcontrol chars e.g. 00 00 00 00 11 13 */
|
||||
|
||||
/* values used for request IPW_SIO_SET_PIN */
|
||||
#define IPW_PIN_SETDTR 0x101
|
||||
#define IPW_PIN_SETRTS 0x202
|
||||
#define IPW_PIN_CLRDTR 0x100
|
||||
#define IPW_PIN_CLRRTS 0x200 // unconfirmed
|
||||
#define IPW_PIN_CLRRTS 0x200 /* unconfirmed */
|
||||
|
||||
/* values used for request IPW_SIO_RXCTL */
|
||||
#define IPW_RXBULK_ON 1
|
||||
#define IPW_RXBULK_OFF 0
|
||||
|
||||
/* various 16 byte hardcoded transferbuffers used by flow control */
|
||||
#define IPW_BYTES_FLOWINIT { 0x01, 0, 0, 0, 0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
|
||||
#define IPW_BYTES_FLOWINIT { 0x01, 0, 0, 0, 0x40, 0, 0, 0, \
|
||||
0, 0, 0, 0, 0, 0, 0, 0 }
|
||||
|
||||
/* Interpretation of modem status lines */
|
||||
/* These need sorting out by individually connecting pins and checking
|
||||
|
|
@ -132,17 +133,6 @@ enum {
|
|||
#define IPW_CTS ((1<<5) | (1<<4))
|
||||
|
||||
#define IPW_WANTS_TO_SEND 0x30
|
||||
//#define IPW_DTR /* Data Terminal Ready */
|
||||
//#define IPW_CTS /* Clear To Send */
|
||||
//#define IPW_CD /* Carrier Detect */
|
||||
//#define IPW_DSR /* Data Set Ready */
|
||||
//#define IPW_RxD /* Receive pin */
|
||||
|
||||
//#define IPW_LE
|
||||
//#define IPW_RTS
|
||||
//#define IPW_ST
|
||||
//#define IPW_SR
|
||||
//#define IPW_RI /* Ring Indicator */
|
||||
|
||||
static struct usb_device_id usb_ipw_ids[] = {
|
||||
{ USB_DEVICE(IPW_VID, IPW_PID) },
|
||||
|
|
@ -177,7 +167,8 @@ static void ipw_read_bulk_callback(struct urb *urb)
|
|||
return;
|
||||
}
|
||||
|
||||
usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
|
||||
usb_serial_debug_data(debug, &port->dev, __func__,
|
||||
urb->actual_length, data);
|
||||
|
||||
tty = port->port.tty;
|
||||
if (tty && urb->actual_length) {
|
||||
|
|
@ -187,15 +178,17 @@ static void ipw_read_bulk_callback(struct urb *urb)
|
|||
}
|
||||
|
||||
/* Continue trying to always read */
|
||||
usb_fill_bulk_urb (port->read_urb, port->serial->dev,
|
||||
usb_rcvbulkpipe(port->serial->dev,
|
||||
usb_fill_bulk_urb(port->read_urb, port->serial->dev,
|
||||
usb_rcvbulkpipe(port->serial->dev,
|
||||
port->bulk_in_endpointAddress),
|
||||
port->read_urb->transfer_buffer,
|
||||
port->read_urb->transfer_buffer_length,
|
||||
ipw_read_bulk_callback, port);
|
||||
port->read_urb->transfer_buffer,
|
||||
port->read_urb->transfer_buffer_length,
|
||||
ipw_read_bulk_callback, port);
|
||||
result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
|
||||
if (result)
|
||||
dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __func__, result);
|
||||
dev_err(&port->dev,
|
||||
"%s - failed resubmitting read urb, error %d\n",
|
||||
__func__, result);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -216,26 +209,30 @@ static int ipw_open(struct tty_struct *tty,
|
|||
if (tty)
|
||||
tty->low_latency = 1;
|
||||
|
||||
/* --1: Tell the modem to initialize (we think) From sniffs this is always the
|
||||
* first thing that gets sent to the modem during opening of the device */
|
||||
dbg("%s: Sending SIO_INIT (we guess)",__func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev,0),
|
||||
IPW_SIO_INIT,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
0,
|
||||
0, /* index */
|
||||
NULL,
|
||||
0,
|
||||
100000);
|
||||
/* --1: Tell the modem to initialize (we think) From sniffs this is
|
||||
* always the first thing that gets sent to the modem during
|
||||
* opening of the device */
|
||||
dbg("%s: Sending SIO_INIT (we guess)", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_INIT,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
0,
|
||||
0, /* index */
|
||||
NULL,
|
||||
0,
|
||||
100000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "Init of modem failed (error = %d)\n", result);
|
||||
dev_err(&port->dev,
|
||||
"Init of modem failed (error = %d)\n", result);
|
||||
|
||||
/* reset the bulk pipes */
|
||||
usb_clear_halt(dev, usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress));
|
||||
usb_clear_halt(dev, usb_sndbulkpipe(dev, port->bulk_out_endpointAddress));
|
||||
usb_clear_halt(dev,
|
||||
usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress));
|
||||
usb_clear_halt(dev,
|
||||
usb_sndbulkpipe(dev, port->bulk_out_endpointAddress));
|
||||
|
||||
/*--2: Start reading from the device */
|
||||
dbg("%s: setting up bulk read callback",__func__);
|
||||
/*--2: Start reading from the device */
|
||||
dbg("%s: setting up bulk read callback", __func__);
|
||||
usb_fill_bulk_urb(port->read_urb, dev,
|
||||
usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
|
||||
port->bulk_in_buffer,
|
||||
|
|
@ -243,67 +240,72 @@ static int ipw_open(struct tty_struct *tty,
|
|||
ipw_read_bulk_callback, port);
|
||||
result = usb_submit_urb(port->read_urb, GFP_KERNEL);
|
||||
if (result < 0)
|
||||
dbg("%s - usb_submit_urb(read bulk) failed with status %d", __func__, result);
|
||||
dbg("%s - usb_submit_urb(read bulk) failed with status %d",
|
||||
__func__, result);
|
||||
|
||||
/*--3: Tell the modem to open the floodgates on the rx bulk channel */
|
||||
dbg("%s:asking modem for RxRead (RXBULK_ON)",__func__);
|
||||
dbg("%s:asking modem for RxRead (RXBULK_ON)", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_RXCTL,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_RXBULK_ON,
|
||||
0, /* index */
|
||||
NULL,
|
||||
0,
|
||||
100000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "Enabling bulk RxRead failed (error = %d)\n", result);
|
||||
IPW_SIO_RXCTL,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_RXBULK_ON,
|
||||
0, /* index */
|
||||
NULL,
|
||||
0,
|
||||
100000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev,
|
||||
"Enabling bulk RxRead failed (error = %d)\n", result);
|
||||
|
||||
/*--4: setup the initial flowcontrol */
|
||||
dbg("%s:setting init flowcontrol (%s)",__func__,buf_flow_init);
|
||||
dbg("%s:setting init flowcontrol (%s)", __func__, buf_flow_init);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_HANDFLOW,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
0,
|
||||
0,
|
||||
buf_flow_init,
|
||||
0x10,
|
||||
200000);
|
||||
IPW_SIO_HANDFLOW,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
0,
|
||||
0,
|
||||
buf_flow_init,
|
||||
0x10,
|
||||
200000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "initial flowcontrol failed (error = %d)\n", result);
|
||||
dev_err(&port->dev,
|
||||
"initial flowcontrol failed (error = %d)\n", result);
|
||||
|
||||
|
||||
/*--5: raise the dtr */
|
||||
dbg("%s:raising dtr",__func__);
|
||||
dbg("%s:raising dtr", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_SET_PIN,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_SETDTR,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
IPW_SIO_SET_PIN,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_SETDTR,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "setting dtr failed (error = %d)\n", result);
|
||||
dev_err(&port->dev,
|
||||
"setting dtr failed (error = %d)\n", result);
|
||||
|
||||
/*--6: raise the rts */
|
||||
dbg("%s:raising rts",__func__);
|
||||
dbg("%s:raising rts", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_SET_PIN,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_SETRTS,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
IPW_SIO_SET_PIN,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_SETRTS,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "setting dtr failed (error = %d)\n", result);
|
||||
|
||||
dev_err(&port->dev,
|
||||
"setting dtr failed (error = %d)\n", result);
|
||||
|
||||
kfree(buf_flow_init);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ipw_close(struct tty_struct *tty,
|
||||
struct usb_serial_port *port, struct file * filp)
|
||||
struct usb_serial_port *port, struct file *filp)
|
||||
{
|
||||
struct usb_device *dev = port->serial->dev;
|
||||
int result;
|
||||
|
|
@ -314,56 +316,62 @@ static void ipw_close(struct tty_struct *tty,
|
|||
}
|
||||
|
||||
/*--1: drop the dtr */
|
||||
dbg("%s:dropping dtr",__func__);
|
||||
dbg("%s:dropping dtr", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_SET_PIN,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_CLRDTR,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
IPW_SIO_SET_PIN,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_CLRDTR,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "dropping dtr failed (error = %d)\n", result);
|
||||
dev_err(&port->dev, "dropping dtr failed (error = %d)\n",
|
||||
result);
|
||||
|
||||
/*--2: drop the rts */
|
||||
dbg("%s:dropping rts",__func__);
|
||||
dbg("%s:dropping rts", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_SET_PIN, USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_CLRRTS,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
IPW_SIO_SET_PIN, USB_TYPE_VENDOR |
|
||||
USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_PIN_CLRRTS,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "dropping rts failed (error = %d)\n", result);
|
||||
dev_err(&port->dev,
|
||||
"dropping rts failed (error = %d)\n", result);
|
||||
|
||||
|
||||
/*--3: purge */
|
||||
dbg("%s:sending purge",__func__);
|
||||
dbg("%s:sending purge", __func__);
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_PURGE, USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
0x03,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
IPW_SIO_PURGE, USB_TYPE_VENDOR |
|
||||
USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
0x03,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
200000);
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "purge failed (error = %d)\n", result);
|
||||
|
||||
|
||||
/* send RXBULK_off (tell modem to stop transmitting bulk data on rx chan) */
|
||||
/* send RXBULK_off (tell modem to stop transmitting bulk data on
|
||||
rx chan) */
|
||||
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
||||
IPW_SIO_RXCTL,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_RXBULK_OFF,
|
||||
0, /* index */
|
||||
NULL,
|
||||
0,
|
||||
100000);
|
||||
IPW_SIO_RXCTL,
|
||||
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
|
||||
IPW_RXBULK_OFF,
|
||||
0, /* index */
|
||||
NULL,
|
||||
0,
|
||||
100000);
|
||||
|
||||
if (result < 0)
|
||||
dev_err(&port->dev, "Disabling bulk RxRead failed (error = %d)\n", result);
|
||||
dev_err(&port->dev,
|
||||
"Disabling bulk RxRead failed (error = %d)\n", result);
|
||||
|
||||
/* shutdown any in-flight urbs that we know about */
|
||||
usb_kill_urb(port->read_urb);
|
||||
|
|
@ -393,7 +401,7 @@ static int ipw_write(struct tty_struct *tty, struct usb_serial_port *port,
|
|||
int ret;
|
||||
|
||||
dbg("%s: TOP: count=%d, in_interrupt=%ld", __func__,
|
||||
count, in_interrupt() );
|
||||
count, in_interrupt());
|
||||
|
||||
if (count == 0) {
|
||||
dbg("%s - write request of 0 bytes", __func__);
|
||||
|
|
@ -424,13 +432,14 @@ static int ipw_write(struct tty_struct *tty, struct usb_serial_port *port,
|
|||
ret = usb_submit_urb(port->write_urb, GFP_ATOMIC);
|
||||
if (ret != 0) {
|
||||
port->write_urb_busy = 0;
|
||||
dbg("%s - usb_submit_urb(write bulk) failed with error = %d", __func__, ret);
|
||||
dbg("%s - usb_submit_urb(write bulk) failed with error = %d",
|
||||
__func__, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
dbg("%s returning %d", __func__, count);
|
||||
return count;
|
||||
}
|
||||
}
|
||||
|
||||
static int ipw_probe(struct usb_serial_port *port)
|
||||
{
|
||||
|
|
@ -489,8 +498,8 @@ module_init(usb_ipw_init);
|
|||
module_exit(usb_ipw_exit);
|
||||
|
||||
/* Module information */
|
||||
MODULE_AUTHOR( DRIVER_AUTHOR );
|
||||
MODULE_DESCRIPTION( DRIVER_DESC );
|
||||
MODULE_AUTHOR(DRIVER_AUTHOR);
|
||||
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
||||
|
|
|
|||
Loading…
Reference in a new issue