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gigaset: remove UNDOCREQ config option

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Drop the kernel config option GIGASET_UNDOCREQ, permanently
activating the code it controlled, as there have been no reports
of problems caused by its activation but many problems caused by
it being disabled.
Also fix a few bad comments while we're at it.

Impact: cleanup
Signed-off-by: Tilman Schmidt <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Tilman Schmidt 2009-05-13 12:44:18 +00:00 • committed by David S. Miller
commit b88bd95655
3 changed files with 28 additions and 74 deletions
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7
drivers/isdn/gigaset/Kconfig
View file

@ -43,11 +43,4 @@ config GIGASET_DEBUG
This enables debugging code in the Gigaset drivers.
If in doubt, say yes.
config GIGASET_UNDOCREQ
bool "Support for undocumented USB requests"
help
This enables support for USB requests we only know from
reverse engineering (currently M105 only). If you need
features like configuration mode of M105, say yes.
endif # ISDN_DRV_GIGASET

62
drivers/isdn/gigaset/usb-gigaset.c
View file

@ -153,8 +153,6 @@ static inline unsigned tiocm_to_gigaset(unsigned state)
return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0);
}
#ifdef CONFIG_GIGASET_UNDOCREQ
/* WARNING: EXPERIMENTAL! */
static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
unsigned new_state)
{
@ -176,6 +174,11 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
return 0;
}
/*
* Set M105 configuration value
* using undocumented device commands reverse engineered from USB traces
* of the Siemens Windows driver
*/
static int set_value(struct cardstate *cs, u8 req, u16 val)
{
struct usb_device *udev = cs->hw.usb->udev;
@ -205,8 +208,10 @@ static int set_value(struct cardstate *cs, u8 req, u16 val)
return r < 0 ? r : (r2 < 0 ? r2 : 0);
}
/* WARNING: HIGHLY EXPERIMENTAL! */
// don't use this in an interrupt/BH
/*
* set the baud rate on the internal serial adapter
* using the undocumented parameter setting command
*/
static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
{
u16 val;
@ -237,8 +242,10 @@ static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
return set_value(cs, 1, val);
}
/* WARNING: HIGHLY EXPERIMENTAL! */
// don't use this in an interrupt/BH
/*
* set the line format on the internal serial adapter
* using the undocumented parameter setting command
*/
static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
{
u16 val = 0;
@ -274,24 +281,6 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
return set_value(cs, 3, val);
}
#else
static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
unsigned new_state)
{
return -ENOTTY;
}
static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
{
return -ENOTTY;
}
static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
{
return -ENOTTY;
}
#endif
/*================================================================================================================*/
static int gigaset_init_bchannel(struct bc_state *bcs)
@ -362,10 +351,8 @@ static void gigaset_modem_fill(unsigned long data)
} while (again);
}
/**
* gigaset_read_int_callback
*
* It is called if the data was received from the device.
/*
* Interrupt Input URB completion routine
*/
static void gigaset_read_int_callback(struct urb *urb)
{
@ -567,18 +554,19 @@ static int gigaset_chars_in_buffer(struct cardstate *cs)
return cs->cmdbytes;
}
/*
* set the break characters on the internal serial adapter
* using undocumented device commands reverse engineered from USB traces
* of the Siemens Windows driver
*/
static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
{
#ifdef CONFIG_GIGASET_UNDOCREQ
struct usb_device *udev = cs->hw.usb->udev;
gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
memcpy(cs->hw.usb->bchars, buf, 6);
return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
0, 0, &buf, 6, 2000);
#else
return -ENOTTY;
#endif
}
static int gigaset_freebcshw(struct bc_state *bcs)
@ -625,7 +613,6 @@ static int gigaset_initcshw(struct cardstate *cs)
ucs->bchars[5] = 0x13;
ucs->bulk_out_buffer = NULL;
ucs->bulk_out_urb = NULL;
//ucs->urb_cmd_out = NULL;
ucs->read_urb = NULL;
tasklet_init(&cs->write_tasklet,
&gigaset_modem_fill, (unsigned long) cs);
@ -742,7 +729,7 @@ static int gigaset_probe(struct usb_interface *interface,
cs->dev = &interface->dev;
/* save address of controller structure */
usb_set_intfdata(interface, cs); // dev_set_drvdata(&interface->dev, cs);
usb_set_intfdata(interface, cs);
endpoint = &hostif->endpoint[0].desc;
@ -921,8 +908,7 @@ static const struct gigaset_ops ops = {
gigaset_m10x_input,
};
/**
* usb_gigaset_init
/*
* This function is called while kernel-module is loaded
*/
static int __init usb_gigaset_init(void)
@ -952,9 +938,7 @@ error:
return -1;
}
/**
* usb_gigaset_exit
/*
* This function is called while unloading the kernel-module
*/
static void __exit usb_gigaset_exit(void)