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Better support in RoboSwitch driver

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The RoboSwitch driver of wpa_supplicant had one shortcoming: not
supporting the 5365 series. I believe the patch attached fixes this
problem.

Furthermore it contains a small readability rewrite. It basically is an
explicit loop-rollout so that the wpa_driver_roboswitch_leave style
matches that of wpa_driver_roboswitch_join.
This commit is contained in:
Jouke Witteveen 2009-02-03 13:13:54 +02:00 committed by Jouni Malinen
parent 97642d73ee
commit c0a0c97aa9
1 changed files with 39 additions and 21 deletions
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56
src/drivers/driver_roboswitch.c
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@ -1,6 +1,6 @@
/*
* WPA Supplicant - roboswitch driver interface
* Copyright (c) 2008 Jouke Witteveen
* Copyright (c) 2008-2009 Jouke Witteveen
*
* 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
@ -47,6 +47,7 @@
/* VLAN page registers */
#define ROBO_VLAN_ACCESS 0x06 /* VLAN table Access register */
#define ROBO_VLAN_ACCESS_5365 0x08 /* VLAN table Access register (5365) */
#define ROBO_VLAN_READ 0x0C /* VLAN read register */
@ -240,32 +241,44 @@ static int wpa_driver_roboswitch_leave(struct wpa_driver_roboswitch_data *drv,
const u8 *addr)
{
int i;
u8 mport[4] = { ROBO_ARLCTRL_VEC_1, ROBO_ARLCTRL_ADDR_1,
ROBO_ARLCTRL_VEC_2, ROBO_ARLCTRL_ADDR_2 };
u16 _read[3], zero = 0;
/* same as at join */
u16 addr_word[ETH_ALEN / 2];
u16 addr_word[ETH_ALEN / 2]; /* same as at join */
for (i = 0; i < ETH_ALEN; i += 2)
addr_word[(ETH_ALEN - i) / 2 - 1] = WPA_GET_BE16(addr + i);
/* find our address/vector pair */
for (i = 0; i < 4; i += 2) {
wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, mport[i],
/* check if multiport address 1 was used */
wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_1,
_read, 1);
if (_read[0] == drv->ports) {
wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
mport[i + 1], _read, 3);
if (os_memcmp(_read, addr_word, 6) == 0)
break;
}
}
/* check if we found our address/vector pair and deactivate it */
if (i == 4)
return -1;
wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE, mport[i], &zero,
ROBO_ARLCTRL_ADDR_1, _read, 3);
if (os_memcmp(_read, addr_word, 6) == 0) {
wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
ROBO_ARLCTRL_VEC_1, &zero,
1);
goto clean_up;
}
}
/* check if multiport address 2 was used */
wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_2,
_read, 1);
if (_read[0] == drv->ports) {
wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
ROBO_ARLCTRL_ADDR_2, _read, 3);
if (os_memcmp(_read, addr_word, 6) == 0) {
wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
ROBO_ARLCTRL_VEC_2, &zero,
1);
goto clean_up;
}
}
/* used multiport address not found */
return -1;
clean_up:
/* leave the multiport registers in a sane state */
wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_1,
_read, 1);
@ -306,7 +319,7 @@ static void * wpa_driver_roboswitch_init(void *ctx, const char *ifname)
{
struct wpa_driver_roboswitch_data *drv;
int len = -1, sep = -1;
u16 vlan = 0, vlan_read[2];
u16 _read, vlan = 0, vlan_read[2];
drv = os_zalloc(sizeof(*drv));
if (drv == NULL) return NULL;
@ -369,9 +382,14 @@ static void * wpa_driver_roboswitch_init(void *ctx, const char *ifname)
}
vlan |= 1 << 13;
/* The BCM5365 uses a different register and is not accounted for. */
wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE, ROBO_VLAN_ACCESS,
&vlan, 1);
/* Read back: The BCM5365 uses a different register */
wpa_driver_roboswitch_read(drv, ROBO_VLAN_PAGE, ROBO_VLAN_ACCESS,
&_read, 1);
if (_read != vlan)
wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE,
ROBO_VLAN_ACCESS_5365, &vlan, 1);
wpa_driver_roboswitch_read(drv, ROBO_VLAN_PAGE, ROBO_VLAN_READ,
vlan_read, 2);
if (!(vlan_read[1] & (1 << 4))) {