| 1 |
62 |
marcus.erl |
/* $Id: netjet.c,v 1.29.2.4 2004/02/11 13:21:34 keil Exp $
|
| 2 |
|
|
*
|
| 3 |
|
|
* low level stuff for Traverse Technologie NETJet ISDN cards
|
| 4 |
|
|
*
|
| 5 |
|
|
* Author Karsten Keil
|
| 6 |
|
|
* Copyright by Karsten Keil <keil@isdn4linux.de>
|
| 7 |
|
|
*
|
| 8 |
|
|
* This software may be used and distributed according to the terms
|
| 9 |
|
|
* of the GNU General Public License, incorporated herein by reference.
|
| 10 |
|
|
*
|
| 11 |
|
|
* Thanks to Traverse Technologies Australia for documents and information
|
| 12 |
|
|
*
|
| 13 |
|
|
* 16-Apr-2002 - led code added - Guy Ellis (guy@traverse.com.au)
|
| 14 |
|
|
*
|
| 15 |
|
|
*/
|
| 16 |
|
|
|
| 17 |
|
|
#include <linux/init.h>
|
| 18 |
|
|
#include "hisax.h"
|
| 19 |
|
|
#include "isac.h"
|
| 20 |
|
|
#include "hscx.h"
|
| 21 |
|
|
#include "isdnl1.h"
|
| 22 |
|
|
#include <linux/interrupt.h>
|
| 23 |
|
|
#include <linux/ppp_defs.h>
|
| 24 |
|
|
#include <asm/io.h>
|
| 25 |
|
|
#include "netjet.h"
|
| 26 |
|
|
|
| 27 |
|
|
/* Interface functions */
|
| 28 |
|
|
|
| 29 |
|
|
u_char
|
| 30 |
|
|
NETjet_ReadIC(struct IsdnCardState *cs, u_char offset)
|
| 31 |
|
|
{
|
| 32 |
|
|
u_char ret;
|
| 33 |
|
|
|
| 34 |
|
|
cs->hw.njet.auxd &= 0xfc;
|
| 35 |
|
|
cs->hw.njet.auxd |= (offset>>4) & 3;
|
| 36 |
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
| 37 |
|
|
ret = bytein(cs->hw.njet.isac + ((offset & 0xf)<<2));
|
| 38 |
|
|
return(ret);
|
| 39 |
|
|
}
|
| 40 |
|
|
|
| 41 |
|
|
void
|
| 42 |
|
|
NETjet_WriteIC(struct IsdnCardState *cs, u_char offset, u_char value)
|
| 43 |
|
|
{
|
| 44 |
|
|
cs->hw.njet.auxd &= 0xfc;
|
| 45 |
|
|
cs->hw.njet.auxd |= (offset>>4) & 3;
|
| 46 |
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
| 47 |
|
|
byteout(cs->hw.njet.isac + ((offset & 0xf)<<2), value);
|
| 48 |
|
|
}
|
| 49 |
|
|
|
| 50 |
|
|
void
|
| 51 |
|
|
NETjet_ReadICfifo(struct IsdnCardState *cs, u_char *data, int size)
|
| 52 |
|
|
{
|
| 53 |
|
|
cs->hw.njet.auxd &= 0xfc;
|
| 54 |
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
| 55 |
|
|
insb(cs->hw.njet.isac, data, size);
|
| 56 |
|
|
}
|
| 57 |
|
|
|
| 58 |
|
|
void
|
| 59 |
|
|
NETjet_WriteICfifo(struct IsdnCardState *cs, u_char *data, int size)
|
| 60 |
|
|
{
|
| 61 |
|
|
cs->hw.njet.auxd &= 0xfc;
|
| 62 |
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
| 63 |
|
|
outsb(cs->hw.njet.isac, data, size);
|
| 64 |
|
|
}
|
| 65 |
|
|
|
| 66 |
|
|
static void fill_mem(struct BCState *bcs, u_int *pos, u_int cnt, int chan, u_char fill)
|
| 67 |
|
|
{
|
| 68 |
|
|
u_int mask=0x000000ff, val = 0, *p=pos;
|
| 69 |
|
|
u_int i;
|
| 70 |
|
|
|
| 71 |
|
|
val |= fill;
|
| 72 |
|
|
if (chan) {
|
| 73 |
|
|
val <<= 8;
|
| 74 |
|
|
mask <<= 8;
|
| 75 |
|
|
}
|
| 76 |
|
|
mask ^= 0xffffffff;
|
| 77 |
|
|
for (i=0; i<cnt; i++) {
|
| 78 |
|
|
*p &= mask;
|
| 79 |
|
|
*p++ |= val;
|
| 80 |
|
|
if (p > bcs->hw.tiger.s_end)
|
| 81 |
|
|
p = bcs->hw.tiger.send;
|
| 82 |
|
|
}
|
| 83 |
|
|
}
|
| 84 |
|
|
|
| 85 |
|
|
static void
|
| 86 |
|
|
mode_tiger(struct BCState *bcs, int mode, int bc)
|
| 87 |
|
|
{
|
| 88 |
|
|
struct IsdnCardState *cs = bcs->cs;
|
| 89 |
|
|
u_char led;
|
| 90 |
|
|
|
| 91 |
|
|
if (cs->debug & L1_DEB_HSCX)
|
| 92 |
|
|
debugl1(cs, "Tiger mode %d bchan %d/%d",
|
| 93 |
|
|
mode, bc, bcs->channel);
|
| 94 |
|
|
bcs->mode = mode;
|
| 95 |
|
|
bcs->channel = bc;
|
| 96 |
|
|
switch (mode) {
|
| 97 |
|
|
case (L1_MODE_NULL):
|
| 98 |
|
|
fill_mem(bcs, bcs->hw.tiger.send,
|
| 99 |
|
|
NETJET_DMA_TXSIZE, bc, 0xff);
|
| 100 |
|
|
if (cs->debug & L1_DEB_HSCX)
|
| 101 |
|
|
debugl1(cs, "Tiger stat rec %d/%d send %d",
|
| 102 |
|
|
bcs->hw.tiger.r_tot, bcs->hw.tiger.r_err,
|
| 103 |
|
|
bcs->hw.tiger.s_tot);
|
| 104 |
|
|
if ((cs->bcs[0].mode == L1_MODE_NULL) &&
|
| 105 |
|
|
(cs->bcs[1].mode == L1_MODE_NULL)) {
|
| 106 |
|
|
cs->hw.njet.dmactrl = 0;
|
| 107 |
|
|
byteout(cs->hw.njet.base + NETJET_DMACTRL,
|
| 108 |
|
|
cs->hw.njet.dmactrl);
|
| 109 |
|
|
byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0);
|
| 110 |
|
|
}
|
| 111 |
|
|
if (cs->typ == ISDN_CTYPE_NETJET_S)
|
| 112 |
|
|
{
|
| 113 |
|
|
// led off
|
| 114 |
|
|
led = bc & 0x01;
|
| 115 |
|
|
led = 0x01 << (6 + led); // convert to mask
|
| 116 |
|
|
led = ~led;
|
| 117 |
|
|
cs->hw.njet.auxd &= led;
|
| 118 |
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
| 119 |
|
|
}
|
| 120 |
|
|
break;
|
| 121 |
|
|
case (L1_MODE_TRANS):
|
| 122 |
|
|
break;
|
| 123 |
|
|
case (L1_MODE_HDLC_56K):
|
| 124 |
|
|
case (L1_MODE_HDLC):
|
| 125 |
|
|
fill_mem(bcs, bcs->hw.tiger.send,
|
| 126 |
|
|
NETJET_DMA_TXSIZE, bc, 0xff);
|
| 127 |
|
|
bcs->hw.tiger.r_state = HDLC_ZERO_SEARCH;
|
| 128 |
|
|
bcs->hw.tiger.r_tot = 0;
|
| 129 |
|
|
bcs->hw.tiger.r_bitcnt = 0;
|
| 130 |
|
|
bcs->hw.tiger.r_one = 0;
|
| 131 |
|
|
bcs->hw.tiger.r_err = 0;
|
| 132 |
|
|
bcs->hw.tiger.s_tot = 0;
|
| 133 |
|
|
if (! cs->hw.njet.dmactrl) {
|
| 134 |
|
|
fill_mem(bcs, bcs->hw.tiger.send,
|
| 135 |
|
|
NETJET_DMA_TXSIZE, !bc, 0xff);
|
| 136 |
|
|
cs->hw.njet.dmactrl = 1;
|
| 137 |
|
|
byteout(cs->hw.njet.base + NETJET_DMACTRL,
|
| 138 |
|
|
cs->hw.njet.dmactrl);
|
| 139 |
|
|
byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0x0f);
|
| 140 |
|
|
/* was 0x3f now 0x0f for TJ300 and TJ320 GE 13/07/00 */
|
| 141 |
|
|
}
|
| 142 |
|
|
bcs->hw.tiger.sendp = bcs->hw.tiger.send;
|
| 143 |
|
|
bcs->hw.tiger.free = NETJET_DMA_TXSIZE;
|
| 144 |
|
|
test_and_set_bit(BC_FLG_EMPTY, &bcs->Flag);
|
| 145 |
|
|
if (cs->typ == ISDN_CTYPE_NETJET_S)
|
| 146 |
|
|
{
|
| 147 |
|
|
// led on
|
| 148 |
|
|
led = bc & 0x01;
|
| 149 |
|
|
led = 0x01 << (6 + led); // convert to mask
|
| 150 |
|
|
cs->hw.njet.auxd |= led;
|
| 151 |
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
| 152 |
|
|
}
|
| 153 |
|
|
break;
|
| 154 |
|
|
}
|
| 155 |
|
|
if (cs->debug & L1_DEB_HSCX)
|
| 156 |
|
|
debugl1(cs, "tiger: set %x %x %x %x/%x pulse=%d",
|
| 157 |
|
|
bytein(cs->hw.njet.base + NETJET_DMACTRL),
|
| 158 |
|
|
bytein(cs->hw.njet.base + NETJET_IRQMASK0),
|
| 159 |
|
|
bytein(cs->hw.njet.base + NETJET_IRQSTAT0),
|
| 160 |
|
|
inl(cs->hw.njet.base + NETJET_DMA_READ_ADR),
|
| 161 |
|
|
inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR),
|
| 162 |
|
|
bytein(cs->hw.njet.base + NETJET_PULSE_CNT));
|
| 163 |
|
|
}
|
| 164 |
|
|
|
| 165 |
|
|
static void printframe(struct IsdnCardState *cs, u_char *buf, int count, char *s) {
|
| 166 |
|
|
char tmp[128];
|
| 167 |
|
|
char *t = tmp;
|
| 168 |
|
|
int i=count,j;
|
| 169 |
|
|
u_char *p = buf;
|
| 170 |
|
|
|
| 171 |
|
|
t += sprintf(t, "tiger %s(%4d)", s, count);
|
| 172 |
|
|
while (i>0) {
|
| 173 |
|
|
if (i>16)
|
| 174 |
|
|
j=16;
|
| 175 |
|
|
else
|
| 176 |
|
|
j=i;
|
| 177 |
|
|
QuickHex(t, p, j);
|
| 178 |
|
|
debugl1(cs, tmp);
|
| 179 |
|
|
p += j;
|
| 180 |
|
|
i -= j;
|
| 181 |
|
|
t = tmp;
|
| 182 |
|
|
t += sprintf(t, "tiger %s ", s);
|
| 183 |
|
|
}
|
| 184 |
|
|
}
|
| 185 |
|
|
|
| 186 |
|
|
// macro for 64k
|
| 187 |
|
|
|
| 188 |
|
|
#define MAKE_RAW_BYTE for (j=0; j<8; j++) { \
|
| 189 |
|
|
bitcnt++;\
|
| 190 |
|
|
s_val >>= 1;\
|
| 191 |
|
|
if (val & 1) {\
|
| 192 |
|
|
s_one++;\
|
| 193 |
|
|
s_val |= 0x80;\
|
| 194 |
|
|
} else {\
|
| 195 |
|
|
s_one = 0;\
|
| 196 |
|
|
s_val &= 0x7f;\
|
| 197 |
|
|
}\
|
| 198 |
|
|
if (bitcnt==8) {\
|
| 199 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
|
| 200 |
|
|
bitcnt = 0;\
|
| 201 |
|
|
}\
|
| 202 |
|
|
if (s_one == 5) {\
|
| 203 |
|
|
s_val >>= 1;\
|
| 204 |
|
|
s_val &= 0x7f;\
|
| 205 |
|
|
bitcnt++;\
|
| 206 |
|
|
s_one = 0;\
|
| 207 |
|
|
}\
|
| 208 |
|
|
if (bitcnt==8) {\
|
| 209 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
|
| 210 |
|
|
bitcnt = 0;\
|
| 211 |
|
|
}\
|
| 212 |
|
|
val >>= 1;\
|
| 213 |
|
|
}
|
| 214 |
|
|
|
| 215 |
|
|
static int make_raw_data(struct BCState *bcs) {
|
| 216 |
|
|
// this make_raw is for 64k
|
| 217 |
|
|
register u_int i,s_cnt=0;
|
| 218 |
|
|
register u_char j;
|
| 219 |
|
|
register u_char val;
|
| 220 |
|
|
register u_char s_one = 0;
|
| 221 |
|
|
register u_char s_val = 0;
|
| 222 |
|
|
register u_char bitcnt = 0;
|
| 223 |
|
|
u_int fcs;
|
| 224 |
|
|
|
| 225 |
|
|
if (!bcs->tx_skb) {
|
| 226 |
|
|
debugl1(bcs->cs, "tiger make_raw: NULL skb");
|
| 227 |
|
|
return(1);
|
| 228 |
|
|
}
|
| 229 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = HDLC_FLAG_VALUE;
|
| 230 |
|
|
fcs = PPP_INITFCS;
|
| 231 |
|
|
for (i=0; i<bcs->tx_skb->len; i++) {
|
| 232 |
|
|
val = bcs->tx_skb->data[i];
|
| 233 |
|
|
fcs = PPP_FCS (fcs, val);
|
| 234 |
|
|
MAKE_RAW_BYTE;
|
| 235 |
|
|
}
|
| 236 |
|
|
fcs ^= 0xffff;
|
| 237 |
|
|
val = fcs & 0xff;
|
| 238 |
|
|
MAKE_RAW_BYTE;
|
| 239 |
|
|
val = (fcs>>8) & 0xff;
|
| 240 |
|
|
MAKE_RAW_BYTE;
|
| 241 |
|
|
val = HDLC_FLAG_VALUE;
|
| 242 |
|
|
for (j=0; j<8; j++) {
|
| 243 |
|
|
bitcnt++;
|
| 244 |
|
|
s_val >>= 1;
|
| 245 |
|
|
if (val & 1)
|
| 246 |
|
|
s_val |= 0x80;
|
| 247 |
|
|
else
|
| 248 |
|
|
s_val &= 0x7f;
|
| 249 |
|
|
if (bitcnt==8) {
|
| 250 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
|
| 251 |
|
|
bitcnt = 0;
|
| 252 |
|
|
}
|
| 253 |
|
|
val >>= 1;
|
| 254 |
|
|
}
|
| 255 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 256 |
|
|
debugl1(bcs->cs,"tiger make_raw: in %ld out %d.%d",
|
| 257 |
|
|
bcs->tx_skb->len, s_cnt, bitcnt);
|
| 258 |
|
|
if (bitcnt) {
|
| 259 |
|
|
while (8>bitcnt++) {
|
| 260 |
|
|
s_val >>= 1;
|
| 261 |
|
|
s_val |= 0x80;
|
| 262 |
|
|
}
|
| 263 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
|
| 264 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = 0xff; // NJ<->NJ thoughput bug fix
|
| 265 |
|
|
}
|
| 266 |
|
|
bcs->hw.tiger.sendcnt = s_cnt;
|
| 267 |
|
|
bcs->tx_cnt -= bcs->tx_skb->len;
|
| 268 |
|
|
bcs->hw.tiger.sp = bcs->hw.tiger.sendbuf;
|
| 269 |
|
|
return(0);
|
| 270 |
|
|
}
|
| 271 |
|
|
|
| 272 |
|
|
// macro for 56k
|
| 273 |
|
|
|
| 274 |
|
|
#define MAKE_RAW_BYTE_56K for (j=0; j<8; j++) { \
|
| 275 |
|
|
bitcnt++;\
|
| 276 |
|
|
s_val >>= 1;\
|
| 277 |
|
|
if (val & 1) {\
|
| 278 |
|
|
s_one++;\
|
| 279 |
|
|
s_val |= 0x80;\
|
| 280 |
|
|
} else {\
|
| 281 |
|
|
s_one = 0;\
|
| 282 |
|
|
s_val &= 0x7f;\
|
| 283 |
|
|
}\
|
| 284 |
|
|
if (bitcnt==7) {\
|
| 285 |
|
|
s_val >>= 1;\
|
| 286 |
|
|
s_val |= 0x80;\
|
| 287 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
|
| 288 |
|
|
bitcnt = 0;\
|
| 289 |
|
|
}\
|
| 290 |
|
|
if (s_one == 5) {\
|
| 291 |
|
|
s_val >>= 1;\
|
| 292 |
|
|
s_val &= 0x7f;\
|
| 293 |
|
|
bitcnt++;\
|
| 294 |
|
|
s_one = 0;\
|
| 295 |
|
|
}\
|
| 296 |
|
|
if (bitcnt==7) {\
|
| 297 |
|
|
s_val >>= 1;\
|
| 298 |
|
|
s_val |= 0x80;\
|
| 299 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;\
|
| 300 |
|
|
bitcnt = 0;\
|
| 301 |
|
|
}\
|
| 302 |
|
|
val >>= 1;\
|
| 303 |
|
|
}
|
| 304 |
|
|
|
| 305 |
|
|
static int make_raw_data_56k(struct BCState *bcs) {
|
| 306 |
|
|
// this make_raw is for 56k
|
| 307 |
|
|
register u_int i,s_cnt=0;
|
| 308 |
|
|
register u_char j;
|
| 309 |
|
|
register u_char val;
|
| 310 |
|
|
register u_char s_one = 0;
|
| 311 |
|
|
register u_char s_val = 0;
|
| 312 |
|
|
register u_char bitcnt = 0;
|
| 313 |
|
|
u_int fcs;
|
| 314 |
|
|
|
| 315 |
|
|
if (!bcs->tx_skb) {
|
| 316 |
|
|
debugl1(bcs->cs, "tiger make_raw_56k: NULL skb");
|
| 317 |
|
|
return(1);
|
| 318 |
|
|
}
|
| 319 |
|
|
val = HDLC_FLAG_VALUE;
|
| 320 |
|
|
for (j=0; j<8; j++) {
|
| 321 |
|
|
bitcnt++;
|
| 322 |
|
|
s_val >>= 1;
|
| 323 |
|
|
if (val & 1)
|
| 324 |
|
|
s_val |= 0x80;
|
| 325 |
|
|
else
|
| 326 |
|
|
s_val &= 0x7f;
|
| 327 |
|
|
if (bitcnt==7) {
|
| 328 |
|
|
s_val >>= 1;
|
| 329 |
|
|
s_val |= 0x80;
|
| 330 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
|
| 331 |
|
|
bitcnt = 0;
|
| 332 |
|
|
}
|
| 333 |
|
|
val >>= 1;
|
| 334 |
|
|
};
|
| 335 |
|
|
fcs = PPP_INITFCS;
|
| 336 |
|
|
for (i=0; i<bcs->tx_skb->len; i++) {
|
| 337 |
|
|
val = bcs->tx_skb->data[i];
|
| 338 |
|
|
fcs = PPP_FCS (fcs, val);
|
| 339 |
|
|
MAKE_RAW_BYTE_56K;
|
| 340 |
|
|
}
|
| 341 |
|
|
fcs ^= 0xffff;
|
| 342 |
|
|
val = fcs & 0xff;
|
| 343 |
|
|
MAKE_RAW_BYTE_56K;
|
| 344 |
|
|
val = (fcs>>8) & 0xff;
|
| 345 |
|
|
MAKE_RAW_BYTE_56K;
|
| 346 |
|
|
val = HDLC_FLAG_VALUE;
|
| 347 |
|
|
for (j=0; j<8; j++) {
|
| 348 |
|
|
bitcnt++;
|
| 349 |
|
|
s_val >>= 1;
|
| 350 |
|
|
if (val & 1)
|
| 351 |
|
|
s_val |= 0x80;
|
| 352 |
|
|
else
|
| 353 |
|
|
s_val &= 0x7f;
|
| 354 |
|
|
if (bitcnt==7) {
|
| 355 |
|
|
s_val >>= 1;
|
| 356 |
|
|
s_val |= 0x80;
|
| 357 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
|
| 358 |
|
|
bitcnt = 0;
|
| 359 |
|
|
}
|
| 360 |
|
|
val >>= 1;
|
| 361 |
|
|
}
|
| 362 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 363 |
|
|
debugl1(bcs->cs,"tiger make_raw_56k: in %ld out %d.%d",
|
| 364 |
|
|
bcs->tx_skb->len, s_cnt, bitcnt);
|
| 365 |
|
|
if (bitcnt) {
|
| 366 |
|
|
while (8>bitcnt++) {
|
| 367 |
|
|
s_val >>= 1;
|
| 368 |
|
|
s_val |= 0x80;
|
| 369 |
|
|
}
|
| 370 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
|
| 371 |
|
|
bcs->hw.tiger.sendbuf[s_cnt++] = 0xff; // NJ<->NJ thoughput bug fix
|
| 372 |
|
|
}
|
| 373 |
|
|
bcs->hw.tiger.sendcnt = s_cnt;
|
| 374 |
|
|
bcs->tx_cnt -= bcs->tx_skb->len;
|
| 375 |
|
|
bcs->hw.tiger.sp = bcs->hw.tiger.sendbuf;
|
| 376 |
|
|
return(0);
|
| 377 |
|
|
}
|
| 378 |
|
|
|
| 379 |
|
|
static void got_frame(struct BCState *bcs, int count) {
|
| 380 |
|
|
struct sk_buff *skb;
|
| 381 |
|
|
|
| 382 |
|
|
if (!(skb = dev_alloc_skb(count)))
|
| 383 |
|
|
printk(KERN_WARNING "TIGER: receive out of memory\n");
|
| 384 |
|
|
else {
|
| 385 |
|
|
memcpy(skb_put(skb, count), bcs->hw.tiger.rcvbuf, count);
|
| 386 |
|
|
skb_queue_tail(&bcs->rqueue, skb);
|
| 387 |
|
|
}
|
| 388 |
|
|
test_and_set_bit(B_RCVBUFREADY, &bcs->event);
|
| 389 |
|
|
schedule_work(&bcs->tqueue);
|
| 390 |
|
|
|
| 391 |
|
|
if (bcs->cs->debug & L1_DEB_RECEIVE_FRAME)
|
| 392 |
|
|
printframe(bcs->cs, bcs->hw.tiger.rcvbuf, count, "rec");
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
|
| 396 |
|
|
|
| 397 |
|
|
static void read_raw(struct BCState *bcs, u_int *buf, int cnt){
|
| 398 |
|
|
int i;
|
| 399 |
|
|
register u_char j;
|
| 400 |
|
|
register u_char val;
|
| 401 |
|
|
u_int *pend = bcs->hw.tiger.rec +NETJET_DMA_RXSIZE -1;
|
| 402 |
|
|
register u_char state = bcs->hw.tiger.r_state;
|
| 403 |
|
|
register u_char r_one = bcs->hw.tiger.r_one;
|
| 404 |
|
|
register u_char r_val = bcs->hw.tiger.r_val;
|
| 405 |
|
|
register u_int bitcnt = bcs->hw.tiger.r_bitcnt;
|
| 406 |
|
|
u_int *p = buf;
|
| 407 |
|
|
int bits;
|
| 408 |
|
|
u_char mask;
|
| 409 |
|
|
|
| 410 |
|
|
if (bcs->mode == L1_MODE_HDLC) { // it's 64k
|
| 411 |
|
|
mask = 0xff;
|
| 412 |
|
|
bits = 8;
|
| 413 |
|
|
}
|
| 414 |
|
|
else { // it's 56K
|
| 415 |
|
|
mask = 0x7f;
|
| 416 |
|
|
bits = 7;
|
| 417 |
|
|
};
|
| 418 |
|
|
for (i=0;i<cnt;i++) {
|
| 419 |
|
|
val = bcs->channel ? ((*p>>8) & 0xff) : (*p & 0xff);
|
| 420 |
|
|
p++;
|
| 421 |
|
|
if (p > pend)
|
| 422 |
|
|
p = bcs->hw.tiger.rec;
|
| 423 |
|
|
if ((val & mask) == mask) {
|
| 424 |
|
|
state = HDLC_ZERO_SEARCH;
|
| 425 |
|
|
bcs->hw.tiger.r_tot++;
|
| 426 |
|
|
bitcnt = 0;
|
| 427 |
|
|
r_one = 0;
|
| 428 |
|
|
continue;
|
| 429 |
|
|
}
|
| 430 |
|
|
for (j=0;j<bits;j++) {
|
| 431 |
|
|
if (state == HDLC_ZERO_SEARCH) {
|
| 432 |
|
|
if (val & 1) {
|
| 433 |
|
|
r_one++;
|
| 434 |
|
|
} else {
|
| 435 |
|
|
r_one=0;
|
| 436 |
|
|
state= HDLC_FLAG_SEARCH;
|
| 437 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 438 |
|
|
debugl1(bcs->cs,"tiger read_raw: zBit(%d,%d,%d) %x",
|
| 439 |
|
|
bcs->hw.tiger.r_tot,i,j,val);
|
| 440 |
|
|
}
|
| 441 |
|
|
} else if (state == HDLC_FLAG_SEARCH) {
|
| 442 |
|
|
if (val & 1) {
|
| 443 |
|
|
r_one++;
|
| 444 |
|
|
if (r_one>6) {
|
| 445 |
|
|
state=HDLC_ZERO_SEARCH;
|
| 446 |
|
|
}
|
| 447 |
|
|
} else {
|
| 448 |
|
|
if (r_one==6) {
|
| 449 |
|
|
bitcnt=0;
|
| 450 |
|
|
r_val=0;
|
| 451 |
|
|
state=HDLC_FLAG_FOUND;
|
| 452 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 453 |
|
|
debugl1(bcs->cs,"tiger read_raw: flag(%d,%d,%d) %x",
|
| 454 |
|
|
bcs->hw.tiger.r_tot,i,j,val);
|
| 455 |
|
|
}
|
| 456 |
|
|
r_one=0;
|
| 457 |
|
|
}
|
| 458 |
|
|
} else if (state == HDLC_FLAG_FOUND) {
|
| 459 |
|
|
if (val & 1) {
|
| 460 |
|
|
r_one++;
|
| 461 |
|
|
if (r_one>6) {
|
| 462 |
|
|
state=HDLC_ZERO_SEARCH;
|
| 463 |
|
|
} else {
|
| 464 |
|
|
r_val >>= 1;
|
| 465 |
|
|
r_val |= 0x80;
|
| 466 |
|
|
bitcnt++;
|
| 467 |
|
|
}
|
| 468 |
|
|
} else {
|
| 469 |
|
|
if (r_one==6) {
|
| 470 |
|
|
bitcnt=0;
|
| 471 |
|
|
r_val=0;
|
| 472 |
|
|
r_one=0;
|
| 473 |
|
|
val >>= 1;
|
| 474 |
|
|
continue;
|
| 475 |
|
|
} else if (r_one!=5) {
|
| 476 |
|
|
r_val >>= 1;
|
| 477 |
|
|
r_val &= 0x7f;
|
| 478 |
|
|
bitcnt++;
|
| 479 |
|
|
}
|
| 480 |
|
|
r_one=0;
|
| 481 |
|
|
}
|
| 482 |
|
|
if ((state != HDLC_ZERO_SEARCH) &&
|
| 483 |
|
|
!(bitcnt & 7)) {
|
| 484 |
|
|
state=HDLC_FRAME_FOUND;
|
| 485 |
|
|
bcs->hw.tiger.r_fcs = PPP_INITFCS;
|
| 486 |
|
|
bcs->hw.tiger.rcvbuf[0] = r_val;
|
| 487 |
|
|
bcs->hw.tiger.r_fcs = PPP_FCS (bcs->hw.tiger.r_fcs, r_val);
|
| 488 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 489 |
|
|
debugl1(bcs->cs,"tiger read_raw: byte1(%d,%d,%d) rval %x val %x i %x",
|
| 490 |
|
|
bcs->hw.tiger.r_tot,i,j,r_val,val,
|
| 491 |
|
|
bcs->cs->hw.njet.irqstat0);
|
| 492 |
|
|
}
|
| 493 |
|
|
} else if (state == HDLC_FRAME_FOUND) {
|
| 494 |
|
|
if (val & 1) {
|
| 495 |
|
|
r_one++;
|
| 496 |
|
|
if (r_one>6) {
|
| 497 |
|
|
state=HDLC_ZERO_SEARCH;
|
| 498 |
|
|
bitcnt=0;
|
| 499 |
|
|
} else {
|
| 500 |
|
|
r_val >>= 1;
|
| 501 |
|
|
r_val |= 0x80;
|
| 502 |
|
|
bitcnt++;
|
| 503 |
|
|
}
|
| 504 |
|
|
} else {
|
| 505 |
|
|
if (r_one==6) {
|
| 506 |
|
|
r_val=0;
|
| 507 |
|
|
r_one=0;
|
| 508 |
|
|
bitcnt++;
|
| 509 |
|
|
if (bitcnt & 7) {
|
| 510 |
|
|
debugl1(bcs->cs, "tiger: frame not byte aligned");
|
| 511 |
|
|
state=HDLC_FLAG_SEARCH;
|
| 512 |
|
|
bcs->hw.tiger.r_err++;
|
| 513 |
|
|
#ifdef ERROR_STATISTIC
|
| 514 |
|
|
bcs->err_inv++;
|
| 515 |
|
|
#endif
|
| 516 |
|
|
} else {
|
| 517 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 518 |
|
|
debugl1(bcs->cs,"tiger frame end(%d,%d): fcs(%x) i %x",
|
| 519 |
|
|
i,j,bcs->hw.tiger.r_fcs, bcs->cs->hw.njet.irqstat0);
|
| 520 |
|
|
if (bcs->hw.tiger.r_fcs == PPP_GOODFCS) {
|
| 521 |
|
|
got_frame(bcs, (bitcnt>>3)-3);
|
| 522 |
|
|
} else {
|
| 523 |
|
|
if (bcs->cs->debug) {
|
| 524 |
|
|
debugl1(bcs->cs, "tiger FCS error");
|
| 525 |
|
|
printframe(bcs->cs, bcs->hw.tiger.rcvbuf,
|
| 526 |
|
|
(bitcnt>>3)-1, "rec");
|
| 527 |
|
|
bcs->hw.tiger.r_err++;
|
| 528 |
|
|
}
|
| 529 |
|
|
#ifdef ERROR_STATISTIC
|
| 530 |
|
|
bcs->err_crc++;
|
| 531 |
|
|
#endif
|
| 532 |
|
|
}
|
| 533 |
|
|
state=HDLC_FLAG_FOUND;
|
| 534 |
|
|
}
|
| 535 |
|
|
bitcnt=0;
|
| 536 |
|
|
} else if (r_one==5) {
|
| 537 |
|
|
val >>= 1;
|
| 538 |
|
|
r_one=0;
|
| 539 |
|
|
continue;
|
| 540 |
|
|
} else {
|
| 541 |
|
|
r_val >>= 1;
|
| 542 |
|
|
r_val &= 0x7f;
|
| 543 |
|
|
bitcnt++;
|
| 544 |
|
|
}
|
| 545 |
|
|
r_one=0;
|
| 546 |
|
|
}
|
| 547 |
|
|
if ((state == HDLC_FRAME_FOUND) &&
|
| 548 |
|
|
!(bitcnt & 7)) {
|
| 549 |
|
|
if ((bitcnt>>3)>=HSCX_BUFMAX) {
|
| 550 |
|
|
debugl1(bcs->cs, "tiger: frame too big");
|
| 551 |
|
|
r_val=0;
|
| 552 |
|
|
state=HDLC_FLAG_SEARCH;
|
| 553 |
|
|
bcs->hw.tiger.r_err++;
|
| 554 |
|
|
#ifdef ERROR_STATISTIC
|
| 555 |
|
|
bcs->err_inv++;
|
| 556 |
|
|
#endif
|
| 557 |
|
|
} else {
|
| 558 |
|
|
bcs->hw.tiger.rcvbuf[(bitcnt>>3)-1] = r_val;
|
| 559 |
|
|
bcs->hw.tiger.r_fcs =
|
| 560 |
|
|
PPP_FCS (bcs->hw.tiger.r_fcs, r_val);
|
| 561 |
|
|
}
|
| 562 |
|
|
}
|
| 563 |
|
|
}
|
| 564 |
|
|
val >>= 1;
|
| 565 |
|
|
}
|
| 566 |
|
|
bcs->hw.tiger.r_tot++;
|
| 567 |
|
|
}
|
| 568 |
|
|
bcs->hw.tiger.r_state = state;
|
| 569 |
|
|
bcs->hw.tiger.r_one = r_one;
|
| 570 |
|
|
bcs->hw.tiger.r_val = r_val;
|
| 571 |
|
|
bcs->hw.tiger.r_bitcnt = bitcnt;
|
| 572 |
|
|
}
|
| 573 |
|
|
|
| 574 |
|
|
void read_tiger(struct IsdnCardState *cs) {
|
| 575 |
|
|
u_int *p;
|
| 576 |
|
|
int cnt = NETJET_DMA_RXSIZE/2;
|
| 577 |
|
|
|
| 578 |
|
|
if ((cs->hw.njet.irqstat0 & cs->hw.njet.last_is0) & NETJET_IRQM0_READ) {
|
| 579 |
|
|
debugl1(cs,"tiger warn read double dma %x/%x",
|
| 580 |
|
|
cs->hw.njet.irqstat0, cs->hw.njet.last_is0);
|
| 581 |
|
|
#ifdef ERROR_STATISTIC
|
| 582 |
|
|
if (cs->bcs[0].mode)
|
| 583 |
|
|
cs->bcs[0].err_rdo++;
|
| 584 |
|
|
if (cs->bcs[1].mode)
|
| 585 |
|
|
cs->bcs[1].err_rdo++;
|
| 586 |
|
|
#endif
|
| 587 |
|
|
return;
|
| 588 |
|
|
} else {
|
| 589 |
|
|
cs->hw.njet.last_is0 &= ~NETJET_IRQM0_READ;
|
| 590 |
|
|
cs->hw.njet.last_is0 |= (cs->hw.njet.irqstat0 & NETJET_IRQM0_READ);
|
| 591 |
|
|
}
|
| 592 |
|
|
if (cs->hw.njet.irqstat0 & NETJET_IRQM0_READ_1)
|
| 593 |
|
|
p = cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE - 1;
|
| 594 |
|
|
else
|
| 595 |
|
|
p = cs->bcs[0].hw.tiger.rec + cnt - 1;
|
| 596 |
|
|
if ((cs->bcs[0].mode == L1_MODE_HDLC) || (cs->bcs[0].mode == L1_MODE_HDLC_56K))
|
| 597 |
|
|
read_raw(cs->bcs, p, cnt);
|
| 598 |
|
|
|
| 599 |
|
|
if ((cs->bcs[1].mode == L1_MODE_HDLC) || (cs->bcs[1].mode == L1_MODE_HDLC_56K))
|
| 600 |
|
|
read_raw(cs->bcs + 1, p, cnt);
|
| 601 |
|
|
cs->hw.njet.irqstat0 &= ~NETJET_IRQM0_READ;
|
| 602 |
|
|
}
|
| 603 |
|
|
|
| 604 |
|
|
static void write_raw(struct BCState *bcs, u_int *buf, int cnt);
|
| 605 |
|
|
|
| 606 |
|
|
void netjet_fill_dma(struct BCState *bcs)
|
| 607 |
|
|
{
|
| 608 |
|
|
register u_int *p, *sp;
|
| 609 |
|
|
register int cnt;
|
| 610 |
|
|
|
| 611 |
|
|
if (!bcs->tx_skb)
|
| 612 |
|
|
return;
|
| 613 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 614 |
|
|
debugl1(bcs->cs,"tiger fill_dma1: c%d %4x", bcs->channel,
|
| 615 |
|
|
bcs->Flag);
|
| 616 |
|
|
if (test_and_set_bit(BC_FLG_BUSY, &bcs->Flag))
|
| 617 |
|
|
return;
|
| 618 |
|
|
if (bcs->mode == L1_MODE_HDLC) { // it's 64k
|
| 619 |
|
|
if (make_raw_data(bcs))
|
| 620 |
|
|
return;
|
| 621 |
|
|
}
|
| 622 |
|
|
else { // it's 56k
|
| 623 |
|
|
if (make_raw_data_56k(bcs))
|
| 624 |
|
|
return;
|
| 625 |
|
|
};
|
| 626 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 627 |
|
|
debugl1(bcs->cs,"tiger fill_dma2: c%d %4x", bcs->channel,
|
| 628 |
|
|
bcs->Flag);
|
| 629 |
|
|
if (test_and_clear_bit(BC_FLG_NOFRAME, &bcs->Flag)) {
|
| 630 |
|
|
write_raw(bcs, bcs->hw.tiger.sendp, bcs->hw.tiger.free);
|
| 631 |
|
|
} else if (test_and_clear_bit(BC_FLG_HALF, &bcs->Flag)) {
|
| 632 |
|
|
p = bus_to_virt(inl(bcs->cs->hw.njet.base + NETJET_DMA_READ_ADR));
|
| 633 |
|
|
sp = bcs->hw.tiger.sendp;
|
| 634 |
|
|
if (p == bcs->hw.tiger.s_end)
|
| 635 |
|
|
p = bcs->hw.tiger.send -1;
|
| 636 |
|
|
if (sp == bcs->hw.tiger.s_end)
|
| 637 |
|
|
sp = bcs->hw.tiger.send -1;
|
| 638 |
|
|
cnt = p - sp;
|
| 639 |
|
|
if (cnt <0) {
|
| 640 |
|
|
write_raw(bcs, bcs->hw.tiger.sendp, bcs->hw.tiger.free);
|
| 641 |
|
|
} else {
|
| 642 |
|
|
p++;
|
| 643 |
|
|
cnt++;
|
| 644 |
|
|
if (p > bcs->hw.tiger.s_end)
|
| 645 |
|
|
p = bcs->hw.tiger.send;
|
| 646 |
|
|
p++;
|
| 647 |
|
|
cnt++;
|
| 648 |
|
|
if (p > bcs->hw.tiger.s_end)
|
| 649 |
|
|
p = bcs->hw.tiger.send;
|
| 650 |
|
|
write_raw(bcs, p, bcs->hw.tiger.free - cnt);
|
| 651 |
|
|
}
|
| 652 |
|
|
} else if (test_and_clear_bit(BC_FLG_EMPTY, &bcs->Flag)) {
|
| 653 |
|
|
p = bus_to_virt(inl(bcs->cs->hw.njet.base + NETJET_DMA_READ_ADR));
|
| 654 |
|
|
cnt = bcs->hw.tiger.s_end - p;
|
| 655 |
|
|
if (cnt < 2) {
|
| 656 |
|
|
p = bcs->hw.tiger.send + 1;
|
| 657 |
|
|
cnt = NETJET_DMA_TXSIZE/2 - 2;
|
| 658 |
|
|
} else {
|
| 659 |
|
|
p++;
|
| 660 |
|
|
p++;
|
| 661 |
|
|
if (cnt <= (NETJET_DMA_TXSIZE/2))
|
| 662 |
|
|
cnt += NETJET_DMA_TXSIZE/2;
|
| 663 |
|
|
cnt--;
|
| 664 |
|
|
cnt--;
|
| 665 |
|
|
}
|
| 666 |
|
|
write_raw(bcs, p, cnt);
|
| 667 |
|
|
}
|
| 668 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 669 |
|
|
debugl1(bcs->cs,"tiger fill_dma3: c%d %4x", bcs->channel,
|
| 670 |
|
|
bcs->Flag);
|
| 671 |
|
|
}
|
| 672 |
|
|
|
| 673 |
|
|
static void write_raw(struct BCState *bcs, u_int *buf, int cnt) {
|
| 674 |
|
|
u_int mask, val, *p=buf;
|
| 675 |
|
|
u_int i, s_cnt;
|
| 676 |
|
|
|
| 677 |
|
|
if (cnt <= 0)
|
| 678 |
|
|
return;
|
| 679 |
|
|
if (test_bit(BC_FLG_BUSY, &bcs->Flag)) {
|
| 680 |
|
|
if (bcs->hw.tiger.sendcnt> cnt) {
|
| 681 |
|
|
s_cnt = cnt;
|
| 682 |
|
|
bcs->hw.tiger.sendcnt -= cnt;
|
| 683 |
|
|
} else {
|
| 684 |
|
|
s_cnt = bcs->hw.tiger.sendcnt;
|
| 685 |
|
|
bcs->hw.tiger.sendcnt = 0;
|
| 686 |
|
|
}
|
| 687 |
|
|
if (bcs->channel)
|
| 688 |
|
|
mask = 0xffff00ff;
|
| 689 |
|
|
else
|
| 690 |
|
|
mask = 0xffffff00;
|
| 691 |
|
|
for (i=0; i<s_cnt; i++) {
|
| 692 |
|
|
val = bcs->channel ? ((bcs->hw.tiger.sp[i] <<8) & 0xff00) :
|
| 693 |
|
|
(bcs->hw.tiger.sp[i]);
|
| 694 |
|
|
*p &= mask;
|
| 695 |
|
|
*p++ |= val;
|
| 696 |
|
|
if (p>bcs->hw.tiger.s_end)
|
| 697 |
|
|
p = bcs->hw.tiger.send;
|
| 698 |
|
|
}
|
| 699 |
|
|
bcs->hw.tiger.s_tot += s_cnt;
|
| 700 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 701 |
|
|
debugl1(bcs->cs,"tiger write_raw: c%d %p-%p %d/%d %d %x", bcs->channel,
|
| 702 |
|
|
buf, p, s_cnt, cnt,
|
| 703 |
|
|
bcs->hw.tiger.sendcnt, bcs->cs->hw.njet.irqstat0);
|
| 704 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX_FIFO)
|
| 705 |
|
|
printframe(bcs->cs, bcs->hw.tiger.sp, s_cnt, "snd");
|
| 706 |
|
|
bcs->hw.tiger.sp += s_cnt;
|
| 707 |
|
|
bcs->hw.tiger.sendp = p;
|
| 708 |
|
|
if (!bcs->hw.tiger.sendcnt) {
|
| 709 |
|
|
if (!bcs->tx_skb) {
|
| 710 |
|
|
debugl1(bcs->cs,"tiger write_raw: NULL skb s_cnt %d", s_cnt);
|
| 711 |
|
|
} else {
|
| 712 |
|
|
if (test_bit(FLG_LLI_L1WAKEUP,&bcs->st->lli.flag) &&
|
| 713 |
|
|
(PACKET_NOACK != bcs->tx_skb->pkt_type)) {
|
| 714 |
|
|
u_long flags;
|
| 715 |
|
|
spin_lock_irqsave(&bcs->aclock, flags);
|
| 716 |
|
|
bcs->ackcnt += bcs->tx_skb->len;
|
| 717 |
|
|
spin_unlock_irqrestore(&bcs->aclock, flags);
|
| 718 |
|
|
schedule_event(bcs, B_ACKPENDING);
|
| 719 |
|
|
}
|
| 720 |
|
|
dev_kfree_skb_any(bcs->tx_skb);
|
| 721 |
|
|
bcs->tx_skb = NULL;
|
| 722 |
|
|
}
|
| 723 |
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
| 724 |
|
|
bcs->hw.tiger.free = cnt - s_cnt;
|
| 725 |
|
|
if (bcs->hw.tiger.free > (NETJET_DMA_TXSIZE/2))
|
| 726 |
|
|
test_and_set_bit(BC_FLG_HALF, &bcs->Flag);
|
| 727 |
|
|
else {
|
| 728 |
|
|
test_and_clear_bit(BC_FLG_HALF, &bcs->Flag);
|
| 729 |
|
|
test_and_set_bit(BC_FLG_NOFRAME, &bcs->Flag);
|
| 730 |
|
|
}
|
| 731 |
|
|
if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
|
| 732 |
|
|
netjet_fill_dma(bcs);
|
| 733 |
|
|
} else {
|
| 734 |
|
|
mask ^= 0xffffffff;
|
| 735 |
|
|
if (s_cnt < cnt) {
|
| 736 |
|
|
for (i=s_cnt; i<cnt;i++) {
|
| 737 |
|
|
*p++ |= mask;
|
| 738 |
|
|
if (p>bcs->hw.tiger.s_end)
|
| 739 |
|
|
p = bcs->hw.tiger.send;
|
| 740 |
|
|
}
|
| 741 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 742 |
|
|
debugl1(bcs->cs, "tiger write_raw: fill rest %d",
|
| 743 |
|
|
cnt - s_cnt);
|
| 744 |
|
|
}
|
| 745 |
|
|
test_and_set_bit(B_XMTBUFREADY, &bcs->event);
|
| 746 |
|
|
schedule_work(&bcs->tqueue);
|
| 747 |
|
|
}
|
| 748 |
|
|
}
|
| 749 |
|
|
} else if (test_and_clear_bit(BC_FLG_NOFRAME, &bcs->Flag)) {
|
| 750 |
|
|
test_and_set_bit(BC_FLG_HALF, &bcs->Flag);
|
| 751 |
|
|
fill_mem(bcs, buf, cnt, bcs->channel, 0xff);
|
| 752 |
|
|
bcs->hw.tiger.free += cnt;
|
| 753 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 754 |
|
|
debugl1(bcs->cs,"tiger write_raw: fill half");
|
| 755 |
|
|
} else if (test_and_clear_bit(BC_FLG_HALF, &bcs->Flag)) {
|
| 756 |
|
|
test_and_set_bit(BC_FLG_EMPTY, &bcs->Flag);
|
| 757 |
|
|
fill_mem(bcs, buf, cnt, bcs->channel, 0xff);
|
| 758 |
|
|
if (bcs->cs->debug & L1_DEB_HSCX)
|
| 759 |
|
|
debugl1(bcs->cs,"tiger write_raw: fill full");
|
| 760 |
|
|
}
|
| 761 |
|
|
}
|
| 762 |
|
|
|
| 763 |
|
|
void write_tiger(struct IsdnCardState *cs) {
|
| 764 |
|
|
u_int *p, cnt = NETJET_DMA_TXSIZE/2;
|
| 765 |
|
|
|
| 766 |
|
|
if ((cs->hw.njet.irqstat0 & cs->hw.njet.last_is0) & NETJET_IRQM0_WRITE) {
|
| 767 |
|
|
debugl1(cs,"tiger warn write double dma %x/%x",
|
| 768 |
|
|
cs->hw.njet.irqstat0, cs->hw.njet.last_is0);
|
| 769 |
|
|
#ifdef ERROR_STATISTIC
|
| 770 |
|
|
if (cs->bcs[0].mode)
|
| 771 |
|
|
cs->bcs[0].err_tx++;
|
| 772 |
|
|
if (cs->bcs[1].mode)
|
| 773 |
|
|
cs->bcs[1].err_tx++;
|
| 774 |
|
|
#endif
|
| 775 |
|
|
return;
|
| 776 |
|
|
} else {
|
| 777 |
|
|
cs->hw.njet.last_is0 &= ~NETJET_IRQM0_WRITE;
|
| 778 |
|
|
cs->hw.njet.last_is0 |= (cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE);
|
| 779 |
|
|
}
|
| 780 |
|
|
if (cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE_1)
|
| 781 |
|
|
p = cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE - 1;
|
| 782 |
|
|
else
|
| 783 |
|
|
p = cs->bcs[0].hw.tiger.send + cnt - 1;
|
| 784 |
|
|
if ((cs->bcs[0].mode == L1_MODE_HDLC) || (cs->bcs[0].mode == L1_MODE_HDLC_56K))
|
| 785 |
|
|
write_raw(cs->bcs, p, cnt);
|
| 786 |
|
|
if ((cs->bcs[1].mode == L1_MODE_HDLC) || (cs->bcs[1].mode == L1_MODE_HDLC_56K))
|
| 787 |
|
|
write_raw(cs->bcs + 1, p, cnt);
|
| 788 |
|
|
cs->hw.njet.irqstat0 &= ~NETJET_IRQM0_WRITE;
|
| 789 |
|
|
}
|
| 790 |
|
|
|
| 791 |
|
|
static void
|
| 792 |
|
|
tiger_l2l1(struct PStack *st, int pr, void *arg)
|
| 793 |
|
|
{
|
| 794 |
|
|
struct BCState *bcs = st->l1.bcs;
|
| 795 |
|
|
struct sk_buff *skb = arg;
|
| 796 |
|
|
u_long flags;
|
| 797 |
|
|
|
| 798 |
|
|
switch (pr) {
|
| 799 |
|
|
case (PH_DATA | REQUEST):
|
| 800 |
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
| 801 |
|
|
if (bcs->tx_skb) {
|
| 802 |
|
|
skb_queue_tail(&bcs->squeue, skb);
|
| 803 |
|
|
} else {
|
| 804 |
|
|
bcs->tx_skb = skb;
|
| 805 |
|
|
bcs->cs->BC_Send_Data(bcs);
|
| 806 |
|
|
}
|
| 807 |
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
| 808 |
|
|
break;
|
| 809 |
|
|
case (PH_PULL | INDICATION):
|
| 810 |
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
| 811 |
|
|
if (bcs->tx_skb) {
|
| 812 |
|
|
printk(KERN_WARNING "tiger_l2l1: this shouldn't happen\n");
|
| 813 |
|
|
} else {
|
| 814 |
|
|
bcs->tx_skb = skb;
|
| 815 |
|
|
bcs->cs->BC_Send_Data(bcs);
|
| 816 |
|
|
}
|
| 817 |
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
| 818 |
|
|
break;
|
| 819 |
|
|
case (PH_PULL | REQUEST):
|
| 820 |
|
|
if (!bcs->tx_skb) {
|
| 821 |
|
|
test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
|
| 822 |
|
|
st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
|
| 823 |
|
|
} else
|
| 824 |
|
|
test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
|
| 825 |
|
|
break;
|
| 826 |
|
|
case (PH_ACTIVATE | REQUEST):
|
| 827 |
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
| 828 |
|
|
test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
|
| 829 |
|
|
mode_tiger(bcs, st->l1.mode, st->l1.bc);
|
| 830 |
|
|
/* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG */
|
| 831 |
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
| 832 |
|
|
bcs->cs->cardmsg(bcs->cs, MDL_BC_ASSIGN, (void *)(&st->l1.bc));
|
| 833 |
|
|
l1_msg_b(st, pr, arg);
|
| 834 |
|
|
break;
|
| 835 |
|
|
case (PH_DEACTIVATE | REQUEST):
|
| 836 |
|
|
/* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG */
|
| 837 |
|
|
bcs->cs->cardmsg(bcs->cs, MDL_BC_RELEASE, (void *)(&st->l1.bc));
|
| 838 |
|
|
l1_msg_b(st, pr, arg);
|
| 839 |
|
|
break;
|
| 840 |
|
|
case (PH_DEACTIVATE | CONFIRM):
|
| 841 |
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
| 842 |
|
|
test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
|
| 843 |
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
| 844 |
|
|
mode_tiger(bcs, 0, st->l1.bc);
|
| 845 |
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
| 846 |
|
|
st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
|
| 847 |
|
|
break;
|
| 848 |
|
|
}
|
| 849 |
|
|
}
|
| 850 |
|
|
|
| 851 |
|
|
|
| 852 |
|
|
static void
|
| 853 |
|
|
close_tigerstate(struct BCState *bcs)
|
| 854 |
|
|
{
|
| 855 |
|
|
mode_tiger(bcs, 0, bcs->channel);
|
| 856 |
|
|
if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
|
| 857 |
|
|
kfree(bcs->hw.tiger.rcvbuf);
|
| 858 |
|
|
bcs->hw.tiger.rcvbuf = NULL;
|
| 859 |
|
|
kfree(bcs->hw.tiger.sendbuf);
|
| 860 |
|
|
bcs->hw.tiger.sendbuf = NULL;
|
| 861 |
|
|
skb_queue_purge(&bcs->rqueue);
|
| 862 |
|
|
skb_queue_purge(&bcs->squeue);
|
| 863 |
|
|
if (bcs->tx_skb) {
|
| 864 |
|
|
dev_kfree_skb_any(bcs->tx_skb);
|
| 865 |
|
|
bcs->tx_skb = NULL;
|
| 866 |
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
| 867 |
|
|
}
|
| 868 |
|
|
}
|
| 869 |
|
|
}
|
| 870 |
|
|
|
| 871 |
|
|
static int
|
| 872 |
|
|
open_tigerstate(struct IsdnCardState *cs, struct BCState *bcs)
|
| 873 |
|
|
{
|
| 874 |
|
|
if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
|
| 875 |
|
|
if (!(bcs->hw.tiger.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
|
| 876 |
|
|
printk(KERN_WARNING
|
| 877 |
|
|
"HiSax: No memory for tiger.rcvbuf\n");
|
| 878 |
|
|
return (1);
|
| 879 |
|
|
}
|
| 880 |
|
|
if (!(bcs->hw.tiger.sendbuf = kmalloc(RAW_BUFMAX, GFP_ATOMIC))) {
|
| 881 |
|
|
printk(KERN_WARNING
|
| 882 |
|
|
"HiSax: No memory for tiger.sendbuf\n");
|
| 883 |
|
|
return (1);
|
| 884 |
|
|
}
|
| 885 |
|
|
skb_queue_head_init(&bcs->rqueue);
|
| 886 |
|
|
skb_queue_head_init(&bcs->squeue);
|
| 887 |
|
|
}
|
| 888 |
|
|
bcs->tx_skb = NULL;
|
| 889 |
|
|
bcs->hw.tiger.sendcnt = 0;
|
| 890 |
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
| 891 |
|
|
bcs->event = 0;
|
| 892 |
|
|
bcs->tx_cnt = 0;
|
| 893 |
|
|
return (0);
|
| 894 |
|
|
}
|
| 895 |
|
|
|
| 896 |
|
|
static int
|
| 897 |
|
|
setstack_tiger(struct PStack *st, struct BCState *bcs)
|
| 898 |
|
|
{
|
| 899 |
|
|
bcs->channel = st->l1.bc;
|
| 900 |
|
|
if (open_tigerstate(st->l1.hardware, bcs))
|
| 901 |
|
|
return (-1);
|
| 902 |
|
|
st->l1.bcs = bcs;
|
| 903 |
|
|
st->l2.l2l1 = tiger_l2l1;
|
| 904 |
|
|
setstack_manager(st);
|
| 905 |
|
|
bcs->st = st;
|
| 906 |
|
|
setstack_l1_B(st);
|
| 907 |
|
|
return (0);
|
| 908 |
|
|
}
|
| 909 |
|
|
|
| 910 |
|
|
|
| 911 |
|
|
void
|
| 912 |
|
|
inittiger(struct IsdnCardState *cs)
|
| 913 |
|
|
{
|
| 914 |
|
|
if (!(cs->bcs[0].hw.tiger.send = kmalloc(NETJET_DMA_TXSIZE * sizeof(unsigned int),
|
| 915 |
|
|
GFP_KERNEL | GFP_DMA))) {
|
| 916 |
|
|
printk(KERN_WARNING
|
| 917 |
|
|
"HiSax: No memory for tiger.send\n");
|
| 918 |
|
|
return;
|
| 919 |
|
|
}
|
| 920 |
|
|
cs->bcs[0].hw.tiger.s_irq = cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE/2 - 1;
|
| 921 |
|
|
cs->bcs[0].hw.tiger.s_end = cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE - 1;
|
| 922 |
|
|
cs->bcs[1].hw.tiger.send = cs->bcs[0].hw.tiger.send;
|
| 923 |
|
|
cs->bcs[1].hw.tiger.s_irq = cs->bcs[0].hw.tiger.s_irq;
|
| 924 |
|
|
cs->bcs[1].hw.tiger.s_end = cs->bcs[0].hw.tiger.s_end;
|
| 925 |
|
|
|
| 926 |
|
|
memset(cs->bcs[0].hw.tiger.send, 0xff, NETJET_DMA_TXSIZE * sizeof(unsigned int));
|
| 927 |
|
|
debugl1(cs, "tiger: send buf %p - %p", cs->bcs[0].hw.tiger.send,
|
| 928 |
|
|
cs->bcs[0].hw.tiger.send + NETJET_DMA_TXSIZE - 1);
|
| 929 |
|
|
outl(virt_to_bus(cs->bcs[0].hw.tiger.send),
|
| 930 |
|
|
cs->hw.njet.base + NETJET_DMA_READ_START);
|
| 931 |
|
|
outl(virt_to_bus(cs->bcs[0].hw.tiger.s_irq),
|
| 932 |
|
|
cs->hw.njet.base + NETJET_DMA_READ_IRQ);
|
| 933 |
|
|
outl(virt_to_bus(cs->bcs[0].hw.tiger.s_end),
|
| 934 |
|
|
cs->hw.njet.base + NETJET_DMA_READ_END);
|
| 935 |
|
|
if (!(cs->bcs[0].hw.tiger.rec = kmalloc(NETJET_DMA_RXSIZE * sizeof(unsigned int),
|
| 936 |
|
|
GFP_KERNEL | GFP_DMA))) {
|
| 937 |
|
|
printk(KERN_WARNING
|
| 938 |
|
|
"HiSax: No memory for tiger.rec\n");
|
| 939 |
|
|
return;
|
| 940 |
|
|
}
|
| 941 |
|
|
debugl1(cs, "tiger: rec buf %p - %p", cs->bcs[0].hw.tiger.rec,
|
| 942 |
|
|
cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE - 1);
|
| 943 |
|
|
cs->bcs[1].hw.tiger.rec = cs->bcs[0].hw.tiger.rec;
|
| 944 |
|
|
memset(cs->bcs[0].hw.tiger.rec, 0xff, NETJET_DMA_RXSIZE * sizeof(unsigned int));
|
| 945 |
|
|
outl(virt_to_bus(cs->bcs[0].hw.tiger.rec),
|
| 946 |
|
|
cs->hw.njet.base + NETJET_DMA_WRITE_START);
|
| 947 |
|
|
outl(virt_to_bus(cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE/2 - 1),
|
| 948 |
|
|
cs->hw.njet.base + NETJET_DMA_WRITE_IRQ);
|
| 949 |
|
|
outl(virt_to_bus(cs->bcs[0].hw.tiger.rec + NETJET_DMA_RXSIZE - 1),
|
| 950 |
|
|
cs->hw.njet.base + NETJET_DMA_WRITE_END);
|
| 951 |
|
|
debugl1(cs, "tiger: dmacfg %x/%x pulse=%d",
|
| 952 |
|
|
inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR),
|
| 953 |
|
|
inl(cs->hw.njet.base + NETJET_DMA_READ_ADR),
|
| 954 |
|
|
bytein(cs->hw.njet.base + NETJET_PULSE_CNT));
|
| 955 |
|
|
cs->hw.njet.last_is0 = 0;
|
| 956 |
|
|
cs->bcs[0].BC_SetStack = setstack_tiger;
|
| 957 |
|
|
cs->bcs[1].BC_SetStack = setstack_tiger;
|
| 958 |
|
|
cs->bcs[0].BC_Close = close_tigerstate;
|
| 959 |
|
|
cs->bcs[1].BC_Close = close_tigerstate;
|
| 960 |
|
|
}
|
| 961 |
|
|
|
| 962 |
|
|
static void
|
| 963 |
|
|
releasetiger(struct IsdnCardState *cs)
|
| 964 |
|
|
{
|
| 965 |
|
|
kfree(cs->bcs[0].hw.tiger.send);
|
| 966 |
|
|
cs->bcs[0].hw.tiger.send = NULL;
|
| 967 |
|
|
cs->bcs[1].hw.tiger.send = NULL;
|
| 968 |
|
|
kfree(cs->bcs[0].hw.tiger.rec);
|
| 969 |
|
|
cs->bcs[0].hw.tiger.rec = NULL;
|
| 970 |
|
|
cs->bcs[1].hw.tiger.rec = NULL;
|
| 971 |
|
|
}
|
| 972 |
|
|
|
| 973 |
|
|
void
|
| 974 |
|
|
release_io_netjet(struct IsdnCardState *cs)
|
| 975 |
|
|
{
|
| 976 |
|
|
byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0);
|
| 977 |
|
|
byteout(cs->hw.njet.base + NETJET_IRQMASK1, 0);
|
| 978 |
|
|
releasetiger(cs);
|
| 979 |
|
|
release_region(cs->hw.njet.base, 256);
|
| 980 |
|
|
}
|
| 981 |
|
|
|
