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linux/drivers/isdn/hisax/netjet.c
Jean Delvare 6473d160b4 PCI: Cleanup the includes of <linux/pci.h> 
I noticed that many source files include <linux/pci.h> while they do
not appear to need it. Here is an attempt to clean it all up.

In order to find all possibly affected files, I searched for all
files including <linux/pci.h> but without any other occurence of "pci"
or "PCI". I removed the include statement from all of these, then I
compiled an allmodconfig kernel on both i386 and x86_64 and fixed the
false positives manually.

My tests covered 66% of the affected files, so there could be false
positives remaining. Untested files are:

arch/alpha/kernel/err_common.c
arch/alpha/kernel/err_ev6.c
arch/alpha/kernel/err_ev7.c
arch/ia64/sn/kernel/huberror.c
arch/ia64/sn/kernel/xpnet.c
arch/m68knommu/kernel/dma.c
arch/mips/lib/iomap.c
arch/powerpc/platforms/pseries/ras.c
arch/ppc/8260_io/enet.c
arch/ppc/8260_io/fcc_enet.c
arch/ppc/8xx_io/enet.c
arch/ppc/syslib/ppc4xx_sgdma.c
arch/sh64/mach-cayman/iomap.c
arch/xtensa/kernel/xtensa_ksyms.c
arch/xtensa/platform-iss/setup.c
drivers/i2c/busses/i2c-at91.c
drivers/i2c/busses/i2c-mpc.c
drivers/media/video/saa711x.c
drivers/misc/hdpuftrs/hdpu_cpustate.c
drivers/misc/hdpuftrs/hdpu_nexus.c
drivers/net/au1000_eth.c
drivers/net/fec_8xx/fec_main.c
drivers/net/fec_8xx/fec_mii.c
drivers/net/fs_enet/fs_enet-main.c
drivers/net/fs_enet/mac-fcc.c
drivers/net/fs_enet/mac-fec.c
drivers/net/fs_enet/mac-scc.c
drivers/net/fs_enet/mii-bitbang.c
drivers/net/fs_enet/mii-fec.c
drivers/net/ibm_emac/ibm_emac_core.c
drivers/net/lasi_82596.c
drivers/parisc/hppb.c
drivers/sbus/sbus.c
drivers/video/g364fb.c
drivers/video/platinumfb.c
drivers/video/stifb.c
drivers/video/valkyriefb.c
include/asm-arm/arch-ixp4xx/dma.h
sound/oss/au1550_ac97.c

I would welcome test reports for these files. I am fine with removing
the untested files from the patch if the general opinion is that these
changes aren't safe. The tested part would still be nice to have.

Note that this patch depends on another header fixup patch I submitted
to LKML yesterday:
  [PATCH] scatterlist.h needs types.h
  http://lkml.org/lkml/2007/3/01/141

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02 19:02:35 -07:00

981 lines
26 KiB
C
Raw Blame History

/* $Id: netjet.c,v 1.29.2.4 2004/02/11 13:21:34 keil Exp $
*
* low level stuff for Traverse Technologie NETJet ISDN cards
*
* Author Karsten Keil
* Copyright by Karsten Keil <keil@isdn4linux.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
* Thanks to Traverse Technologies Australia for documents and information
*
* 16-Apr-2002 - led code added - Guy Ellis (guy@traverse.com.au)
*
*/
#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
#include <linux/interrupt.h>
#include <linux/ppp_defs.h>
#include <asm/io.h>
#include "netjet.h"
/* Interface functions */
u_char
NETjet_ReadIC(struct IsdnCardState *cs, u_char offset)
{
u_char ret;
cs->hw.njet.auxd &= 0xfc;
cs->hw.njet.auxd |= (offset>>4) & 3;
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
ret = bytein(cs->hw.njet.isac + ((offset & 0xf)<<2));
return(ret);
}
void
NETjet_WriteIC(struct IsdnCardState *cs, u_char offset, u_char value)
{
cs->hw.njet.auxd &= 0xfc;
cs->hw.njet.auxd |= (offset>>4) & 3;
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
byteout(cs->hw.njet.isac + ((offset & 0xf)<<2), value);
}
void
NETjet_ReadICfifo(struct IsdnCardState *cs, u_char *data, int size)
{
cs->hw.njet.auxd &= 0xfc;
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
insb(cs->hw.njet.isac, data, size);
}
void
NETjet_WriteICfifo(struct IsdnCardState *cs, u_char *data, int size)
{
cs->hw.njet.auxd &= 0xfc;
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
outsb(cs->hw.njet.isac, data, size);
}
static void fill_mem(struct BCState *bcs, u_int *pos, u_int cnt, int chan, u_char fill)
{
u_int mask=0x000000ff, val = 0, *p=pos;
u_int i;
val |= fill;
if (chan) {
val <<= 8;
mask <<= 8;
}
mask ^= 0xffffffff;
for (i=0; i<cnt; i++) {
*p &= mask;
*p++ |= val;
if (p > bcs->hw.tiger.s_end)
p = bcs->hw.tiger.send;
}
}
static void
mode_tiger(struct BCState *bcs, int mode, int bc)
{
struct IsdnCardState *cs = bcs->cs;
u_char led;
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "Tiger mode %d bchan %d/%d",
mode, bc, bcs->channel);
bcs->mode = mode;
bcs->channel = bc;
switch (mode) {
case (L1_MODE_NULL):
fill_mem(bcs, bcs->hw.tiger.send,
NETJET_DMA_TXSIZE, bc, 0xff);
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "Tiger stat rec %d/%d send %d",
bcs->hw.tiger.r_tot, bcs->hw.tiger.r_err,
bcs->hw.tiger.s_tot);
if ((cs->bcs[0].mode == L1_MODE_NULL) &&
(cs->bcs[1].mode == L1_MODE_NULL)) {
cs->hw.njet.dmactrl = 0;
byteout(cs->hw.njet.base + NETJET_DMACTRL,
cs->hw.njet.dmactrl);
byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0);
}
if (cs->typ == ISDN_CTYPE_NETJET_S)
{
// led off
led = bc & 0x01;
led = 0x01 << (6 + led); // convert to mask
led = ~led;
cs->hw.njet.auxd &= led;
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
}
break;
case (L1_MODE_TRANS):
break;
case (L1_MODE_HDLC_56K):
case (L1_MODE_HDLC):
fill_mem(bcs, bcs->hw.tiger.send,
NETJET_DMA_TXSIZE, bc, 0xff);
bcs->hw.tiger.r_state = HDLC_ZERO_SEARCH;
bcs->hw.tiger.r_tot = 0;
bcs->hw.tiger.r_bitcnt = 0;
bcs->hw.tiger.r_one = 0;
bcs->hw.tiger.r_err = 0;
bcs->hw.tiger.s_tot = 0;
if (! cs->hw.njet.dmactrl) {
fill_mem(bcs, bcs->hw.tiger.send,
NETJET_DMA_TXSIZE, !bc, 0xff);
cs->hw.njet.dmactrl = 1;
byteout(cs->hw.njet.base + NETJET_DMACTRL,
cs->hw.njet.dmactrl);
byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0x0f);
/* was 0x3f now 0x0f for TJ300 and TJ320 GE 13/07/00 */
}
bcs->hw.tiger.sendp = bcs->hw.tiger.send;
bcs->hw.tiger.free = NETJET_DMA_TXSIZE;
test_and_set_bit(BC_FLG_EMPTY, &bcs->Flag);
if (cs->typ == ISDN_CTYPE_NETJET_S)
{
// led on
led = bc & 0x01;
led = 0x01 << (6 + led); // convert to mask
cs->hw.njet.auxd |= led;
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
}
break;
}
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "tiger: set %x %x %x %x/%x pulse=%d",
bytein(cs->hw.njet.base + NETJET_DMACTRL),
bytein(cs->hw.njet.base + NETJET_IRQMASK0),
bytein(cs->hw.njet.base + NETJET_IRQSTAT0),
inl(cs->hw.njet.base + NETJET_DMA_READ_ADR),
inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR),
bytein(cs->hw.njet.base + NETJET_PULSE_CNT));
}
static void printframe(struct IsdnCardState *cs, u_char *buf, int count, char *s) {
char tmp[128];
char *t = tmp;
int i=count,j;
u_char *p = buf;
t += sprintf(t, "tiger %s(%4d)", s, count);
while (i>0) {
if (i>16)
j=16;
else
j=i;
QuickHex(t, p, j);
debugl1(cs, tmp);
p += j;
i -= j;
t = tmp;
t += sprintf(t, "tiger %s ", s);
}
}
// macro for 64k
#define MAKE_RAW_BYTE for (j=0; j<8; j++) { \
bitcnt++;\
s_val >>= 1;\
if (val & 1) {\
s_one++;\
s_val |= 0x80;\
} else {\
s_one = 0;\
s_val &= 0x7f;\
}\
if (bitcnt==8) {\
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
bitcnt = 0;\
}\
if (s_one == 5) {\
s_val >>= 1;\
s_val &= 0x7f;\
bitcnt++;\
s_one = 0;\
}\
if (bitcnt==8) {\
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
bitcnt = 0;\
}\
val >>= 1;\
}
static int make_raw_data(struct BCState *bcs) {
// this make_raw is for 64k
register u_int i,s_cnt=0;
register u_char j;
register u_char val;
register u_char s_one = 0;
register u_char s_val = 0;
register u_char bitcnt = 0;
u_int fcs;
if (!bcs->tx_skb) {
debugl1(bcs->cs, "tiger make_raw: NULL skb");
return(1);
}
bcs->hw.tiger.sendbuf[s_cnt++] = HDLC_FLAG_VALUE;
fcs = PPP_INITFCS;
for (i=0; i<bcs->tx_skb->len; i++) {
val = bcs->tx_skb->data[i];
fcs = PPP_FCS (fcs, val);
MAKE_RAW_BYTE;
}
fcs ^= 0xffff;
val = fcs & 0xff;
MAKE_RAW_BYTE;
val = (fcs>>8) & 0xff;
MAKE_RAW_BYTE;
val = HDLC_FLAG_VALUE;
for (j=0; j<8; j++) {
bitcnt++;
s_val >>= 1;
if (val & 1)
s_val |= 0x80;
else
s_val &= 0x7f;
if (bitcnt==8) {
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
bitcnt = 0;
}
val >>= 1;
}
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger make_raw: in %ld out %d.%d",
bcs->tx_skb->len, s_cnt, bitcnt);
if (bitcnt) {
while (8>bitcnt++) {
s_val >>= 1;
s_val |= 0x80;
}
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
bcs->hw.tiger.sendbuf[s_cnt++] = 0xff; // NJ<->NJ thoughput bug fix
}
bcs->hw.tiger.sendcnt = s_cnt;
bcs->tx_cnt -= bcs->tx_skb->len;
bcs->hw.tiger.sp = bcs->hw.tiger.sendbuf;
return(0);
}
// macro for 56k
#define MAKE_RAW_BYTE_56K for (j=0; j<8; j++) { \
bitcnt++;\
s_val >>= 1;\
if (val & 1) {\
s_one++;\
s_val |= 0x80;\
} else {\
s_one = 0;\
s_val &= 0x7f;\
}\
if (bitcnt==7) {\
s_val >>= 1;\
s_val |= 0x80;\
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
bitcnt = 0;\
}\
if (s_one == 5) {\
s_val >>= 1;\
s_val &= 0x7f;\
bitcnt++;\
s_one = 0;\
}\
if (bitcnt==7) {\
s_val >>= 1;\
s_val |= 0x80;\
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
bitcnt = 0;\
}\
val >>= 1;\
}
static int make_raw_data_56k(struct BCState *bcs) {
// this make_raw is for 56k
register u_int i,s_cnt=0;
register u_char j;
register u_char val;
register u_char s_one = 0;
register u_char s_val = 0;
register u_char bitcnt = 0;
u_int fcs;
if (!bcs->tx_skb) {
debugl1(bcs->cs, "tiger make_raw_56k: NULL skb");
return(1);
}
val = HDLC_FLAG_VALUE;
for (j=0; j<8; j++) {
bitcnt++;
s_val >>= 1;
if (val & 1)
s_val |= 0x80;
else
s_val &= 0x7f;
if (bitcnt==7) {
s_val >>= 1;
s_val |= 0x80;
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
bitcnt = 0;
}
val >>= 1;
};
fcs = PPP_INITFCS;
for (i=0; i<bcs->tx_skb->len; i++) {
val = bcs->tx_skb->data[i];
fcs = PPP_FCS (fcs, val);
MAKE_RAW_BYTE_56K;
}
fcs ^= 0xffff;
val = fcs & 0xff;
MAKE_RAW_BYTE_56K;
val = (fcs>>8) & 0xff;
MAKE_RAW_BYTE_56K;
val = HDLC_FLAG_VALUE;
for (j=0; j<8; j++) {
bitcnt++;
s_val >>= 1;
if (val & 1)
s_val |= 0x80;
else
s_val &= 0x7f;
if (bitcnt==7) {
s_val >>= 1;
s_val |= 0x80;
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
bitcnt = 0;
}
val >>= 1;
}
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger make_raw_56k: in %ld out %d.%d",
bcs->tx_skb->len, s_cnt, bitcnt);
if (bitcnt) {
while (8>bitcnt++) {
s_val >>= 1;
s_val |= 0x80;
}
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
bcs->hw.tiger.sendbuf[s_cnt++] = 0xff; // NJ<->NJ thoughput bug fix
}
bcs->hw.tiger.sendcnt = s_cnt;
bcs->tx_cnt -= bcs->tx_skb->len;
bcs->hw.tiger.sp = bcs->hw.tiger.sendbuf;
return(0);
}
static void got_frame(struct BCState *bcs, int count) {
struct sk_buff *skb;
if (!(skb = dev_alloc_skb(count)))
printk(KERN_WARNING "TIGER: receive out of memory\n");
else {
memcpy(skb_put(skb, count), bcs->hw.tiger.rcvbuf, count);
skb_queue_tail(&bcs->rqueue, skb);
}
test_and_set_bit(B_RCVBUFREADY, &bcs->event);
schedule_work(&bcs->tqueue);
if (bcs->cs->debug & L1_DEB_RECEIVE_FRAME)
printframe(bcs->cs, bcs->hw.tiger.rcvbuf, count, "rec");
}
static void read_raw(struct BCState *bcs, u_int *buf, int cnt){
int i;
register u_char j;
register u_char val;
u_int *pend = bcs->hw.tiger.rec +NETJET_DMA_RXSIZE -1;
register u_char state = bcs->hw.tiger.r_state;
register u_char r_one = bcs->hw.tiger.r_one;
register u_char r_val = bcs->hw.tiger.r_val;
register u_int bitcnt = bcs->hw.tiger.r_bitcnt;
u_int *p = buf;
int bits;
u_char mask;
if (bcs->mode == L1_MODE_HDLC) { // it's 64k
mask = 0xff;
bits = 8;
}
else { // it's 56K
mask = 0x7f;
bits = 7;
};
for (i=0;i<cnt;i++) {
val = bcs->channel ? ((*p>>8) & 0xff) : (*p & 0xff);
p++;
if (p > pend)
p = bcs->hw.tiger.rec;
if ((val & mask) == mask) {
state = HDLC_ZERO_SEARCH;
bcs->hw.tiger.r_tot++;
bitcnt = 0;
r_one = 0;
continue;
}
for (j=0;j<bits;j++) {
if (state == HDLC_ZERO_SEARCH) {
if (val & 1) {
r_one++;
} else {
r_one=0;
state= HDLC_FLAG_SEARCH;
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger read_raw: zBit(%d,%d,%d) %x",
bcs->hw.tiger.r_tot,i,j,val);
}
} else if (state == HDLC_FLAG_SEARCH) {
if (val & 1) {
r_one++;
if (r_one>6) {
state=HDLC_ZERO_SEARCH;
}
} else {
if (r_one==6) {
bitcnt=0;
r_val=0;
state=HDLC_FLAG_FOUND;
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger read_raw: flag(%d,%d,%d) %x",
bcs->hw.tiger.r_tot,i,j,val);
}
r_one=0;
}
} else if (state == HDLC_FLAG_FOUND) {
if (val & 1) {
r_one++;
if (r_one>6) {
state=HDLC_ZERO_SEARCH;
} else {
r_val >>= 1;
r_val |= 0x80;
bitcnt++;
}
} else {
if (r_one==6) {
bitcnt=0;
r_val=0;
r_one=0;
val >>= 1;
continue;
} else if (r_one!=5) {
r_val >>= 1;
r_val &= 0x7f;
bitcnt++;
}
r_one=0;
}
if ((state != HDLC_ZERO_SEARCH) &&
!(bitcnt & 7)) {
state=HDLC_FRAME_FOUND;
bcs->hw.tiger.r_fcs = PPP_INITFCS;
bcs->hw.tiger.rcvbuf[0] = r_val;
bcs->hw.tiger.r_fcs = PPP_FCS (bcs->hw.tiger.r_fcs, r_val);
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger read_raw: byte1(%d,%d,%d) rval %x val %x i %x",
bcs->hw.tiger.r_tot,i,j,r_val,val,
bcs->cs->hw.njet.irqstat0);
}
} else if (state == HDLC_FRAME_FOUND) {
if (val & 1) {
r_one++;
if (r_one>6) {
state=HDLC_ZERO_SEARCH;
bitcnt=0;
} else {
r_val >>= 1;
r_val |= 0x80;
bitcnt++;
}
} else {
if (r_one==6) {
r_val=0;
r_one=0;
bitcnt++;
if (bitcnt & 7) {
debugl1(bcs->cs, "tiger: frame not byte aligned");
state=HDLC_FLAG_SEARCH;
bcs->hw.tiger.r_err++;
#ifdef ERROR_STATISTIC
bcs->err_inv++;
#endif
} else {
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger frame end(%d,%d): fcs(%x) i %x",
i,j,bcs->hw.tiger.r_fcs, bcs->cs->hw.njet.irqstat0);
if (bcs->hw.tiger.r_fcs == PPP_GOODFCS) {
got_frame(bcs, (bitcnt>>3)-3);
} else {
if (bcs->cs->debug) {
debugl1(bcs->cs, "tiger FCS error");
printframe(bcs->cs, bcs->hw.tiger.rcvbuf,
(bitcnt>>3)-1, "rec");
bcs->hw.tiger.r_err++;
}
#ifdef ERROR_STATISTIC
bcs->err_crc++;
#endif
}
state=HDLC_FLAG_FOUND;
}
bitcnt=0;
} else if (r_one==5) {
val >>= 1;
r_one=0;
continue;
} else {
r_val >>= 1;
r_val &= 0x7f;
bitcnt++;
}
r_one=0;
}
if ((state == HDLC_FRAME_FOUND) &&
!(bitcnt & 7)) {
if ((bitcnt>>3)>=HSCX_BUFMAX) {
debugl1(bcs->cs, "tiger: frame too big");
r_val=0;
state=HDLC_FLAG_SEARCH;
bcs->hw.tiger.r_err++;
#ifdef ERROR_STATISTIC
bcs->err_inv++;
#endif
} else {
bcs->hw.tiger.rcvbuf[(bitcnt>>3)-1] = r_val;
bcs->hw.tiger.r_fcs =
PPP_FCS (bcs->hw.tiger.r_fcs, r_val);
}
}
}
val >>= 1;
}
bcs->hw.tiger.r_tot++;
}
bcs->hw.tiger.r_state = state;
bcs->hw.tiger.r_one = r_one;
bcs->hw.tiger.r_val = r_val;
bcs->hw.tiger.r_bitcnt = bitcnt;
}
void read_tiger(struct IsdnCardState *cs) {
u_int *p;
int cnt = NETJET_DMA_RXSIZE/2;
if ((cs->hw.njet.irqstat0 & cs->hw.njet.last_is0) & NETJET_IRQM0_READ) {
debugl1(cs,"tiger warn read double dma %x/%x",
cs->hw.njet.irqstat0, cs->hw.njet.last_is0);
#ifdef ERROR_STATISTIC
if (cs->bcs[0].mode)
cs->bcs[0].err_rdo++;
if (cs->bcs[1].mode)
cs->bcs[1].err_rdo++;
#endif
return;
} else {
cs->hw.njet.last_is0 &= ~NETJET_IRQM0_READ;
cs->hw.njet.last_is0 |= (cs->hw.njet.irqstat0 & NETJET_IRQM0_READ);
}
if (cs->hw.njet.irqstat0 & NETJET_IRQM0_READ_1)
p = cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE - 1;
else
p = cs->bcs[0].hw.tiger.rec + cnt - 1;
if ((cs->bcs[0].mode == L1_MODE_HDLC) || (cs->bcs[0].mode == L1_MODE_HDLC_56K))
read_raw(cs->bcs, p, cnt);
if ((cs->bcs[1].mode == L1_MODE_HDLC) || (cs->bcs[1].mode == L1_MODE_HDLC_56K))
read_raw(cs->bcs + 1, p, cnt);
cs->hw.njet.irqstat0 &= ~NETJET_IRQM0_READ;
}
static void write_raw(struct BCState *bcs, u_int *buf, int cnt);
void netjet_fill_dma(struct BCState *bcs)
{
register u_int *p, *sp;
register int cnt;
if (!bcs->tx_skb)
return;
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger fill_dma1: c%d %4x", bcs->channel,
bcs->Flag);
if (test_and_set_bit(BC_FLG_BUSY, &bcs->Flag))
return;
if (bcs->mode == L1_MODE_HDLC) { // it's 64k
if (make_raw_data(bcs))
return;
}
else { // it's 56k
if (make_raw_data_56k(bcs))
return;
};
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger fill_dma2: c%d %4x", bcs->channel,
bcs->Flag);
if (test_and_clear_bit(BC_FLG_NOFRAME, &bcs->Flag)) {
write_raw(bcs, bcs->hw.tiger.sendp, bcs->hw.tiger.free);
} else if (test_and_clear_bit(BC_FLG_HALF, &bcs->Flag)) {
p = bus_to_virt(inl(bcs->cs->hw.njet.base + NETJET_DMA_READ_ADR));
sp = bcs->hw.tiger.sendp;
if (p == bcs->hw.tiger.s_end)
p = bcs->hw.tiger.send -1;
if (sp == bcs->hw.tiger.s_end)
sp = bcs->hw.tiger.send -1;
cnt = p - sp;
if (cnt <0) {
write_raw(bcs, bcs->hw.tiger.sendp, bcs->hw.tiger.free);
} else {
p++;
cnt++;
if (p > bcs->hw.tiger.s_end)
p = bcs->hw.tiger.send;
p++;
cnt++;
if (p > bcs->hw.tiger.s_end)
p = bcs->hw.tiger.send;
write_raw(bcs, p, bcs->hw.tiger.free - cnt);
}
} else if (test_and_clear_bit(BC_FLG_EMPTY, &bcs->Flag)) {
p = bus_to_virt(inl(bcs->cs->hw.njet.base + NETJET_DMA_READ_ADR));
cnt = bcs->hw.tiger.s_end - p;
if (cnt < 2) {
p = bcs->hw.tiger.send + 1;
cnt = NETJET_DMA_TXSIZE/2 - 2;
} else {
p++;
p++;
if (cnt <= (NETJET_DMA_TXSIZE/2))
cnt += NETJET_DMA_TXSIZE/2;
cnt--;
cnt--;
}
write_raw(bcs, p, cnt);
}
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger fill_dma3: c%d %4x", bcs->channel,
bcs->Flag);
}
static void write_raw(struct BCState *bcs, u_int *buf, int cnt) {
u_int mask, val, *p=buf;
u_int i, s_cnt;
if (cnt <= 0)
return;
if (test_bit(BC_FLG_BUSY, &bcs->Flag)) {
if (bcs->hw.tiger.sendcnt> cnt) {
s_cnt = cnt;
bcs->hw.tiger.sendcnt -= cnt;
} else {
s_cnt = bcs->hw.tiger.sendcnt;
bcs->hw.tiger.sendcnt = 0;
}
if (bcs->channel)
mask = 0xffff00ff;
else
mask = 0xffffff00;
for (i=0; i<s_cnt; i++) {
val = bcs->channel ? ((bcs->hw.tiger.sp[i] <<8) & 0xff00) :
(bcs->hw.tiger.sp[i]);
*p &= mask;
*p++ |= val;
if (p>bcs->hw.tiger.s_end)
p = bcs->hw.tiger.send;
}
bcs->hw.tiger.s_tot += s_cnt;
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger write_raw: c%d %p-%p %d/%d %d %x", bcs->channel,
buf, p, s_cnt, cnt,
bcs->hw.tiger.sendcnt, bcs->cs->hw.njet.irqstat0);
if (bcs->cs->debug & L1_DEB_HSCX_FIFO)
printframe(bcs->cs, bcs->hw.tiger.sp, s_cnt, "snd");
bcs->hw.tiger.sp += s_cnt;
bcs->hw.tiger.sendp = p;
if (!bcs->hw.tiger.sendcnt) {
if (!bcs->tx_skb) {
debugl1(bcs->cs,"tiger write_raw: NULL skb s_cnt %d", s_cnt);
} else {
if (test_bit(FLG_LLI_L1WAKEUP,&bcs->st->lli.flag) &&
(PACKET_NOACK != bcs->tx_skb->pkt_type)) {
u_long flags;
spin_lock_irqsave(&bcs->aclock, flags);
bcs->ackcnt += bcs->tx_skb->len;
spin_unlock_irqrestore(&bcs->aclock, flags);
schedule_event(bcs, B_ACKPENDING);
}
dev_kfree_skb_any(bcs->tx_skb);
bcs->tx_skb = NULL;
}
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
bcs->hw.tiger.free = cnt - s_cnt;
if (bcs->hw.tiger.free > (NETJET_DMA_TXSIZE/2))
test_and_set_bit(BC_FLG_HALF, &bcs->Flag);
else {
test_and_clear_bit(BC_FLG_HALF, &bcs->Flag);
test_and_set_bit(BC_FLG_NOFRAME, &bcs->Flag);
}
if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
netjet_fill_dma(bcs);
} else {
mask ^= 0xffffffff;
if (s_cnt < cnt) {
for (i=s_cnt; i<cnt;i++) {
*p++ |= mask;
if (p>bcs->hw.tiger.s_end)
p = bcs->hw.tiger.send;
}
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs, "tiger write_raw: fill rest %d",
cnt - s_cnt);
}
test_and_set_bit(B_XMTBUFREADY, &bcs->event);
schedule_work(&bcs->tqueue);
}
}
} else if (test_and_clear_bit(BC_FLG_NOFRAME, &bcs->Flag)) {
test_and_set_bit(BC_FLG_HALF, &bcs->Flag);
fill_mem(bcs, buf, cnt, bcs->channel, 0xff);
bcs->hw.tiger.free += cnt;
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger write_raw: fill half");
} else if (test_and_clear_bit(BC_FLG_HALF, &bcs->Flag)) {
test_and_set_bit(BC_FLG_EMPTY, &bcs->Flag);
fill_mem(bcs, buf, cnt, bcs->channel, 0xff);
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs,"tiger write_raw: fill full");
}
}
void write_tiger(struct IsdnCardState *cs) {
u_int *p, cnt = NETJET_DMA_TXSIZE/2;
if ((cs->hw.njet.irqstat0 & cs->hw.njet.last_is0) & NETJET_IRQM0_WRITE) {
debugl1(cs,"tiger warn write double dma %x/%x",
cs->hw.njet.irqstat0, cs->hw.njet.last_is0);
#ifdef ERROR_STATISTIC
if (cs->bcs[0].mode)
cs->bcs[0].err_tx++;
if (cs->bcs[1].mode)
cs->bcs[1].err_tx++;
#endif
return;
} else {
cs->hw.njet.last_is0 &= ~NETJET_IRQM0_WRITE;
cs->hw.njet.last_is0 |= (cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE);
}
if (cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE_1)
p = cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE - 1;
else
p = cs->bcs[0].hw.tiger.send + cnt - 1;
if ((cs->bcs[0].mode == L1_MODE_HDLC) || (cs->bcs[0].mode == L1_MODE_HDLC_56K))
write_raw(cs->bcs, p, cnt);
if ((cs->bcs[1].mode == L1_MODE_HDLC) || (cs->bcs[1].mode == L1_MODE_HDLC_56K))
write_raw(cs->bcs + 1, p, cnt);
cs->hw.njet.irqstat0 &= ~NETJET_IRQM0_WRITE;
}
static void
tiger_l2l1(struct PStack *st, int pr, void *arg)
{
struct BCState *bcs = st->l1.bcs;
struct sk_buff *skb = arg;
u_long flags;
switch (pr) {
case (PH_DATA | REQUEST):
spin_lock_irqsave(&bcs->cs->lock, flags);
if (bcs->tx_skb) {
skb_queue_tail(&bcs->squeue, skb);
} else {
bcs->tx_skb = skb;
bcs->cs->BC_Send_Data(bcs);
}
spin_unlock_irqrestore(&bcs->cs->lock, flags);
break;
case (PH_PULL | INDICATION):
spin_lock_irqsave(&bcs->cs->lock, flags);
if (bcs->tx_skb) {
printk(KERN_WARNING "tiger_l2l1: this shouldn't happen\n");
} else {
bcs->tx_skb = skb;
bcs->cs->BC_Send_Data(bcs);
}
spin_unlock_irqrestore(&bcs->cs->lock, flags);
break;
case (PH_PULL | REQUEST):
if (!bcs->tx_skb) {
test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
} else
test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
break;
case (PH_ACTIVATE | REQUEST):
spin_lock_irqsave(&bcs->cs->lock, flags);
test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
mode_tiger(bcs, st->l1.mode, st->l1.bc);
/* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG */
spin_unlock_irqrestore(&bcs->cs->lock, flags);
bcs->cs->cardmsg(bcs->cs, MDL_BC_ASSIGN, (void *)(&st->l1.bc));
l1_msg_b(st, pr, arg);
break;
case (PH_DEACTIVATE | REQUEST):
/* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG */
bcs->cs->cardmsg(bcs->cs, MDL_BC_RELEASE, (void *)(&st->l1.bc));
l1_msg_b(st, pr, arg);
break;
case (PH_DEACTIVATE | CONFIRM):
spin_lock_irqsave(&bcs->cs->lock, flags);
test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
mode_tiger(bcs, 0, st->l1.bc);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
break;
}
}
static void
close_tigerstate(struct BCState *bcs)
{
mode_tiger(bcs, 0, bcs->channel);
if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
kfree(bcs->hw.tiger.rcvbuf);
bcs->hw.tiger.rcvbuf = NULL;
kfree(bcs->hw.tiger.sendbuf);
bcs->hw.tiger.sendbuf = NULL;
skb_queue_purge(&bcs->rqueue);
skb_queue_purge(&bcs->squeue);
if (bcs->tx_skb) {
dev_kfree_skb_any(bcs->tx_skb);
bcs->tx_skb = NULL;
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
}
}
}
static int
open_tigerstate(struct IsdnCardState *cs, struct BCState *bcs)
{
if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
if (!(bcs->hw.tiger.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
printk(KERN_WARNING
"HiSax: No memory for tiger.rcvbuf\n");
return (1);
}
if (!(bcs->hw.tiger.sendbuf = kmalloc(RAW_BUFMAX, GFP_ATOMIC))) {
printk(KERN_WARNING
"HiSax: No memory for tiger.sendbuf\n");
return (1);
}
skb_queue_head_init(&bcs->rqueue);
skb_queue_head_init(&bcs->squeue);
}
bcs->tx_skb = NULL;
bcs->hw.tiger.sendcnt = 0;
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
bcs->event = 0;
bcs->tx_cnt = 0;
return (0);
}
static int
setstack_tiger(struct PStack *st, struct BCState *bcs)
{
bcs->channel = st->l1.bc;
if (open_tigerstate(st->l1.hardware, bcs))
return (-1);
st->l1.bcs = bcs;
st->l2.l2l1 = tiger_l2l1;
setstack_manager(st);
bcs->st = st;
setstack_l1_B(st);
return (0);
}
void
inittiger(struct IsdnCardState *cs)
{
if (!(cs->bcs[0].hw.tiger.send = kmalloc(NETJET_DMA_TXSIZE * sizeof(unsigned int),
GFP_KERNEL | GFP_DMA))) {
printk(KERN_WARNING
"HiSax: No memory for tiger.send\n");
return;
}
cs->bcs[0].hw.tiger.s_irq = cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE/2 - 1;
cs->bcs[0].hw.tiger.s_end = cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE - 1;
cs->bcs[1].hw.tiger.send = cs->bcs[0].hw.tiger.send;
cs->bcs[1].hw.tiger.s_irq = cs->bcs[0].hw.tiger.s_irq;
cs->bcs[1].hw.tiger.s_end = cs->bcs[0].hw.tiger.s_end;
memset(cs->bcs[0].hw.tiger.send, 0xff, NETJET_DMA_TXSIZE * sizeof(unsigned int));
debugl1(cs, "tiger: send buf %p - %p", cs->bcs[0].hw.tiger.send,
cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE - 1);
outl(virt_to_bus(cs->bcs[0].hw.tiger.send),
cs->hw.njet.base + NETJET_DMA_READ_START);
outl(virt_to_bus(cs->bcs[0].hw.tiger.s_irq),
cs->hw.njet.base + NETJET_DMA_READ_IRQ);
outl(virt_to_bus(cs->bcs[0].hw.tiger.s_end),
cs->hw.njet.base + NETJET_DMA_READ_END);
if (!(cs->bcs[0].hw.tiger.rec = kmalloc(NETJET_DMA_RXSIZE * sizeof(unsigned int),
GFP_KERNEL | GFP_DMA))) {
printk(KERN_WARNING
"HiSax: No memory for tiger.rec\n");
return;
}
debugl1(cs, "tiger: rec buf %p - %p", cs->bcs[0].hw.tiger.rec,
cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE - 1);
cs->bcs[1].hw.tiger.rec = cs->bcs[0].hw.tiger.rec;
memset(cs->bcs[0].hw.tiger.rec, 0xff, NETJET_DMA_RXSIZE * sizeof(unsigned int));
outl(virt_to_bus(cs->bcs[0].hw.tiger.rec),
cs->hw.njet.base + NETJET_DMA_WRITE_START);
outl(virt_to_bus(cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE/2 - 1),
cs->hw.njet.base + NETJET_DMA_WRITE_IRQ);
outl(virt_to_bus(cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE - 1),
cs->hw.njet.base + NETJET_DMA_WRITE_END);
debugl1(cs, "tiger: dmacfg %x/%x pulse=%d",
inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR),
inl(cs->hw.njet.base + NETJET_DMA_READ_ADR),
bytein(cs->hw.njet.base + NETJET_PULSE_CNT));
cs->hw.njet.last_is0 = 0;
cs->bcs[0].BC_SetStack = setstack_tiger;
cs->bcs[1].BC_SetStack = setstack_tiger;
cs->bcs[0].BC_Close = close_tigerstate;
cs->bcs[1].BC_Close = close_tigerstate;
}
static void
releasetiger(struct IsdnCardState *cs)
{
kfree(cs->bcs[0].hw.tiger.send);
cs->bcs[0].hw.tiger.send = NULL;
cs->bcs[1].hw.tiger.send = NULL;
kfree(cs->bcs[0].hw.tiger.rec);
cs->bcs[0].hw.tiger.rec = NULL;
cs->bcs[1].hw.tiger.rec = NULL;
}
void
release_io_netjet(struct IsdnCardState *cs)
{
byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0);
byteout(cs->hw.njet.base + NETJET_IRQMASK1, 0);
releasetiger(cs);
release_region(cs->hw.njet.base, 256);
}
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