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-rw-r--r--drivers/isdn/hisax/netjet.c985
1 files changed, 0 insertions, 985 deletions
diff --git a/drivers/isdn/hisax/netjet.c b/drivers/isdn/hisax/netjet.c
deleted file mode 100644
index d7b011c8d692..000000000000
--- a/drivers/isdn/hisax/netjet.c
+++ /dev/null
@@ -1,985 +0,0 @@
-/* $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 <linux/slab.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, "%s", 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 %u 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 %u 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 {
- skb_put_data(skb, 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 %4lx", 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 %4lx", 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 %4lx", 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)
-{
- cs->bcs[0].hw.tiger.send = kmalloc_array(NETJET_DMA_TXSIZE,
- sizeof(unsigned int),
- GFP_KERNEL | GFP_DMA);
- if (!cs->bcs[0].hw.tiger.send) {
- 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);
- cs->bcs[0].hw.tiger.rec = kmalloc_array(NETJET_DMA_RXSIZE,
- sizeof(unsigned int),
- GFP_KERNEL | GFP_DMA);
- if (!cs->bcs[0].hw.tiger.rec) {
- 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);
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.