The zte_ev driver is based on code (once) distributed by ZTE that still
appears to originally have been reverse-engineered and bolted onto the
generic driver.
A closer analysis of the zte_ev setup code reveals that it consists of
standard CDC requests (SET/GET_LINE_CODING and SET_CONTROL_LINE_STATE)
but unfortunately fails to get some of those right. In particular, as
reported by Lei Liu, it fails to lower DTR/RTS on close. It also appears
that the control requests lack the interface argument.
Since line control is already handled properly by the option driver, and
the SET/GET_LINE_CODING requests appears to be redundant (amounts to a
SET 9600 8N1) let's remove the redundant zte_ev driver.
Also move the remaining ZTE PIDs to the generic option modem driver.
Reported-by: Lei Liu <liu.lei78@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
v2:
- update against latest usb-next branch of usb-serial tree
drivers/usb/serial/Kconfig | 8 --
drivers/usb/serial/Makefile | 1 -
drivers/usb/serial/option.c | 11 +-
drivers/usb/serial/zte_ev.c | 305 --------------------------------------------
4 files changed, 10 insertions(+), 315 deletions(-)
delete mode 100644 drivers/usb/serial/zte_ev.c
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index c3119eb251bc..a69f7cd9d0bf 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -684,14 +684,6 @@ config USB_SERIAL_WISHBONE
To compile this driver as a module, choose M here: the
module will be called wishbone-serial.
-config USB_SERIAL_ZTE
- tristate "ZTE USB serial driver"
- help
- Say Y here if you want to use a ZTE USB to serial device.
-
- To compile this driver as a module, choose M here: the
- module will be called zte.
-
config USB_SERIAL_SSU100
tristate "USB Quatech SSU-100 Single Port Serial Driver"
help
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index bfdafd349441..349d9df0895f 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -60,4 +60,3 @@ obj-$(CONFIG_USB_SERIAL_WISHBONE) += wishbone-serial.o
obj-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat.o
obj-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda.o
obj-$(CONFIG_USB_SERIAL_XSENS_MT) += xsens_mt.o
-obj-$(CONFIG_USB_SERIAL_ZTE) += zte_ev.o
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 54a8120897a6..d1a3f6044c8a 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -276,6 +276,7 @@ static void option_instat_callback(struct urb *urb);
#define ZTE_PRODUCT_MF628 0x0015
#define ZTE_PRODUCT_MF626 0x0031
#define ZTE_PRODUCT_AC2726 0xfff1
+#define ZTE_PRODUCT_MG880 0xfffd
#define ZTE_PRODUCT_CDMA_TECH 0xfffe
#define ZTE_PRODUCT_AC8710T 0xffff
#define ZTE_PRODUCT_MC2718 0xffe8
@@ -1560,7 +1561,15 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff92, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff93, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff94, 0xff, 0xff, 0xff) },
-
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffec, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffee, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfff6, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfff7, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfff8, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfff9, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfffb, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfffc, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MG880, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710T, 0xff, 0xff, 0xff) },
diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c
deleted file mode 100644
index c9bb107d5e5c..000000000000
--- a/drivers/usb/serial/zte_ev.c
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- * ZTE_EV USB serial driver
- *
- * Copyright (C) 2012 Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
- * Copyright (C) 2012 Linux Foundation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This driver is based on code found in a ZTE_ENV patch that modified
- * the usb-serial generic driver. Comments were left in that I think
- * show the commands used to talk to the device, but I am not sure.
- */
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/usb/serial.h>
-#include <linux/uaccess.h>
-
-#define MAX_SETUP_DATA_SIZE 32
-
-static void debug_data(struct device *dev, const char *function, int len,
- const unsigned char *data, int result)
-{
- dev_dbg(dev, "result = %d\n", result);
- if (result == len)
- dev_dbg(dev, "%s - length = %d, data = %*ph\n", function,
- len, len, data);
-}
-
-static int zte_ev_usb_serial_open(struct tty_struct *tty,
- struct usb_serial_port *port)
-{
- struct usb_device *udev = port->serial->dev;
- struct device *dev = &port->dev;
- int result = 0;
- int len;
- unsigned char *buf;
-
- buf = kmalloc(MAX_SETUP_DATA_SIZE, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- /* send 1st ctl cmd(CTL 21 22 01 00 00 00 00 00) */
- len = 0;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x22, 0x21,
- 0x0001, 0x0000, NULL, len,
- USB_CTRL_GET_TIMEOUT);
- dev_dbg(dev, "result = %d\n", result);
-
- /* send 2st cmd and receive data */
- /*
- * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 25.1.0(5)
- * 16.0 DI 00 96 00 00 00 00 08
- */
- len = 0x0007;
- result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0x21, 0xa1,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 3rd cmd */
- /*
- * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 30.1.0
- * 16.0 DO 80 25 00 00 00 00 08 .%..... 30.2.0
- */
- len = 0x0007;
- buf[0] = 0x80;
- buf[1] = 0x25;
- buf[2] = 0x00;
- buf[3] = 0x00;
- buf[4] = 0x00;
- buf[5] = 0x00;
- buf[6] = 0x08;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x20, 0x21,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 4th cmd */
- /*
- * 16.0 CTL 21 22 03 00 00 00 00 00
- */
- len = 0;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x22, 0x21,
- 0x0003, 0x0000, NULL, len,
- USB_CTRL_GET_TIMEOUT);
- dev_dbg(dev, "result = %d\n", result);
-
- /* send 5th cmd */
- /*
- * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 33.1.0
- * 16.0 DI 80 25 00 00 00 00 08
- */
- len = 0x0007;
- result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0x21, 0xa1,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 6th cmd */
- /*
- * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 34.1.0
- * 16.0 DO 80 25 00 00 00 00 08
- */
- len = 0x0007;
- buf[0] = 0x80;
- buf[1] = 0x25;
- buf[2] = 0x00;
- buf[3] = 0x00;
- buf[4] = 0x00;
- buf[5] = 0x00;
- buf[6] = 0x08;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x20, 0x21,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
- kfree(buf);
-
- return usb_serial_generic_open(tty, port);
-}
-
-/*
- * CTL 21 22 02 00 00 00 00 00 CLASS 338.1.0
- *
- * 16.1 DI a1 20 00 00 00 00 02 00 02 00 . ........ 340.1.0
- * 16.0 CTL 21 22 03 00 00 00 00 00 CLASS 341.1.0
- *
- * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 346.1.0(3)
- * 16.0 DI 00 08 07 00 00 00 08 ....... 346.2.0
- *
- * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 349.1.0
- * 16.0 DO 00 c2 01 00 00 00 08 ....... 349.2.0
- *
- * 16.0 CTL 21 22 03 00 00 00 00 00 CLASS 350.1.0(2)
- *
- * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 352.1.0
- * 16.0 DI 00 c2 01 00 00 00 08 ....... 352.2.0
- *
- * 16.1 DI a1 20 00 00 00 00 02 00 02 00 . ........ 353.1.0
- *
- * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 354.1.0
- * 16.0 DO 00 c2 01 00 00 00 08 ....... 354.2.0
- *
- * 16.0 CTL 21 22 03 00 00 00 00 00
-*/
-
-static void zte_ev_usb_serial_close(struct usb_serial_port *port)
-{
- struct usb_device *udev = port->serial->dev;
- struct device *dev = &port->dev;
- int result = 0;
- int len;
- unsigned char *buf;
-
- buf = kmalloc(MAX_SETUP_DATA_SIZE, GFP_KERNEL);
- if (!buf)
- return;
-
- /* send 1st ctl cmd(CTL 21 22 02 00 00 00 00 00) */
- len = 0;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x22, 0x21,
- 0x0002, 0x0000, NULL, len,
- USB_CTRL_GET_TIMEOUT);
- dev_dbg(dev, "result = %d\n", result);
-
- /* send 2st ctl cmd(CTL 21 22 03 00 00 00 00 00 ) */
- len = 0;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x22, 0x21,
- 0x0003, 0x0000, NULL, len,
- USB_CTRL_GET_TIMEOUT);
- dev_dbg(dev, "result = %d\n", result);
-
- /* send 3st cmd and recieve data */
- /*
- * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 25.1.0(5)
- * 16.0 DI 00 08 07 00 00 00 08
- */
- len = 0x0007;
- result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0x21, 0xa1,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 4th cmd */
- /*
- * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 30.1.0
- * 16.0 DO 00 c2 01 00 00 00 08 .%..... 30.2.0
- */
- len = 0x0007;
- buf[0] = 0x00;
- buf[1] = 0xc2;
- buf[2] = 0x01;
- buf[3] = 0x00;
- buf[4] = 0x00;
- buf[5] = 0x00;
- buf[6] = 0x08;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x20, 0x21,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 5th cmd */
- /*
- * 16.0 CTL 21 22 03 00 00 00 00 00
- */
- len = 0;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x22, 0x21,
- 0x0003, 0x0000, NULL, len,
- USB_CTRL_GET_TIMEOUT);
- dev_dbg(dev, "result = %d\n", result);
-
- /* send 6th cmd */
- /*
- * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 33.1.0
- * 16.0 DI 00 c2 01 00 00 00 08
- */
- len = 0x0007;
- result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0x21, 0xa1,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 7th cmd */
- /*
- * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 354.1.0
- * 16.0 DO 00 c2 01 00 00 00 08 ....... 354.2.0
- */
- len = 0x0007;
- buf[0] = 0x00;
- buf[1] = 0xc2;
- buf[2] = 0x01;
- buf[3] = 0x00;
- buf[4] = 0x00;
- buf[5] = 0x00;
- buf[6] = 0x08;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x20, 0x21,
- 0x0000, 0x0000, buf, len,
- USB_CTRL_GET_TIMEOUT);
- debug_data(dev, __func__, len, buf, result);
-
- /* send 8th cmd */
- /*
- * 16.0 CTL 21 22 03 00 00 00 00 00
- */
- len = 0;
- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x22, 0x21,
- 0x0003, 0x0000, NULL, len,
- USB_CTRL_GET_TIMEOUT);
- dev_dbg(dev, "result = %d\n", result);
-
- kfree(buf);
-
- usb_serial_generic_close(port);
-}
-
-static const struct usb_device_id id_table[] = {
- { USB_DEVICE(0x19d2, 0xffec) },
- { USB_DEVICE(0x19d2, 0xffee) },
- { USB_DEVICE(0x19d2, 0xfff6) },
- { USB_DEVICE(0x19d2, 0xfff7) },
- { USB_DEVICE(0x19d2, 0xfff8) },
- { USB_DEVICE(0x19d2, 0xfff9) },
- { USB_DEVICE(0x19d2, 0xfffb) },
- { USB_DEVICE(0x19d2, 0xfffc) },
- /* MG880 */
- { USB_DEVICE(0x19d2, 0xfffd) },
- { },
-};
-MODULE_DEVICE_TABLE(usb, id_table);
-
-static struct usb_serial_driver zio_device = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "zte_ev",
- },
- .id_table = id_table,
- .num_ports = 1,
- .open = zte_ev_usb_serial_open,
- .close = zte_ev_usb_serial_close,
-};
-
-static struct usb_serial_driver * const serial_drivers[] = {
- &zio_device, NULL
-};
-
-module_usb_serial_driver(serial_drivers, id_table);
-MODULE_LICENSE("GPL v2");
--
1.8.5.5
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