/*
* Copyright (c) 2001-2002 by David Brownell
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* this file is part of ehci-hcd.c */
#ifdef CONFIG_DYNAMIC_DEBUG
/* check the values in the HCSPARAMS register
* (host controller _Structural_ parameters)
* see EHCI spec, Table 2-4 for each value
*/
static void dbg_hcs_params (struct ehci_hcd *ehci, char *label)
{
u32 params = ehci_readl(ehci, &ehci->caps->hcs_params);
ehci_dbg (ehci,
"%s hcs_params 0x%x dbg=%d%s cc=%d pcc=%d%s%s ports=%d\n",
label, params,
HCS_DEBUG_PORT (params),
HCS_INDICATOR (params) ? " ind" : "",
HCS_N_CC (params),
HCS_N_PCC (params),
HCS_PORTROUTED (params) ? "" : " ordered",
HCS_PPC (params) ? "" : " !ppc",
HCS_N_PORTS (params)
);
/* Port routing, per EHCI 0.95 Spec, Section 2.2.5 */
if (HCS_PORTROUTED (params)) {
int i;
char buf [46], tmp [7], byte;
buf[0] = 0;
for (i = 0; i < HCS_N_PORTS (params); i++) {
// FIXME MIPS won't readb() ...
byte = readb (&ehci->caps->portroute[(i>>1)]);
sprintf(tmp, "%d ",
((i & 0x1) ? ((byte)&0xf) : ((byte>>4)&0xf)));
strcat(buf, tmp);
}
ehci_dbg (ehci, "%s portroute %s\n",
label, buf);
}
}
#else
static inline void dbg_hcs_params (struct ehci_hcd *ehci, char *label) {}
#endif
#ifdef CONFIG_DYNAMIC_DEBUG
/* check the values in the HCCPARAMS register
* (host controller _Capability_ parameters)
* see EHCI Spec, Table 2-5 for each value
* */
static void dbg_hcc_params (struct ehci_hcd *ehci, char *label)
{
u32 params = ehci_readl(ehci, &ehci->caps->hcc_params);
if (HCC_ISOC_CACHE (params)) {
ehci_dbg (ehci,
"%s hcc_params %04x caching frame %s%s%s\n",
label, params,
HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
HCC_CANPARK(params) ? " park" : "",
HCC_64BIT_ADDR(params) ? " 64 bit addr" : "");
} else {
ehci_dbg (ehci,
"%s hcc_params %04x thresh %d uframes %s%s%s%s%s%s%s\n",
label,
params,
HCC_ISOC_THRES(params),
HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
HCC_CANPARK(params) ? " park" : "",
HCC_64BIT_ADDR(params) ? " 64 bit addr" : "",
HCC_LPM(params) ? " LPM" : "",
HCC_PER_PORT_CHANGE_EVENT(params) ? " ppce" : "",
HCC_HW_PREFETCH(params) ? " hw prefetch" : "",
HCC_32FRAME_PERIODIC_LIST(params) ?
" 32 periodic list" : "");
}
}
#else
static inline void dbg_hcc_params (struct ehci_hcd *ehci, char *label) {}
#endif
#ifdef CONFIG_DYNAMIC_DEBUG
static void __maybe_unused
dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd)
{
ehci_dbg(ehci, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd,
hc32_to_cpup(ehci, &qtd->hw_next),
hc32_to_cpup(ehci, &qtd->hw_alt_next),
hc32_to_cpup(ehci, &qtd->hw_token),
hc32_to_cpup(ehci,