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UEAGLE: Allow user to choose input interface alternate setting 

Let's user control how much USB bus bandwidth will be reserved by
ueagle-atm device. This make possible to share bus with other devices
when ueagle-atm driver works in isochronous mode.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Stanislaw Gruszka 2007-08-20 23:21:06 +02:00 committed by Greg Kroah-Hartman
parent 603cf6087c
commit 503add467d
1 changed files with 12 additions and 16 deletions
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28
drivers/usb/atm/ueagle-atm.c
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@ -538,15 +538,16 @@ static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III",
static int modem_index;
static unsigned int debug;
static int use_iso[NB_MODEM] = {[0 ... (NB_MODEM - 1)] = 1};
static unsigned int altsetting[NB_MODEM] = {[0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
static int sync_wait[NB_MODEM];
static char *cmv_file[NB_MODEM];
static int annex[NB_MODEM];
module_param(debug, uint, 0644);
MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
module_param_array(use_iso, bool, NULL, 0644);
MODULE_PARM_DESC(use_iso, "use isochronous usb pipe for incoming traffic");
module_param_array(altsetting, uint, NULL, 0644);
MODULE_PARM_DESC(altsetting, "alternate setting for incoming traffic: 0=bulk, "
"1=isoc slowest, ... , 8=isoc fastest (default)");
module_param_array(sync_wait, bool, NULL, 0644);
MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
module_param_array(cmv_file, charp, NULL, 0644);
@ -1254,7 +1255,7 @@ static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
*/
if (UEA_CHIP_VERSION(sc) == ADI930 ||
use_iso[sc->modem_index] > 0 ||
altsetting[sc->modem_index] > 0 ||
sc->stats.phy.dsrate == dsrate)
return;
@ -2459,6 +2460,7 @@ static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
struct usb_device *usb = interface_to_usbdev(intf);
struct uea_softc *sc;
int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
unsigned int alt;
uea_enters(usb);
@ -2506,22 +2508,16 @@ static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
else
sc->annex = (le16_to_cpu(sc->usb_dev->descriptor.bcdDevice) & 0x80)?ANNEXB:ANNEXA;
alt = altsetting[sc->modem_index];
/* ADI930 don't support iso */
if (UEA_CHIP_VERSION(id) != ADI930 && use_iso[sc->modem_index]) {
int i;
/* try set fastest alternate for inbound traffic interface */
for (i = FASTEST_ISO_INTF; i > 0; i--)
if (usb_set_interface(usb, UEA_DS_IFACE_NO, i) == 0)
break;
if (i > 0) {
uea_dbg(usb, "set alternate %d for 2 interface\n", i);
if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
if (alt <= 8 && usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
uea_info(usb, "using iso mode\n");
usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
} else {
uea_err(usb, "setting any alternate failed for "
"2 interface, using bulk mode\n");
uea_err(usb, "setting alternate %u failed for "
"2 interface, using bulk mode\n", alt);
}
}