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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
![Kees Cook](/assets/img/avatar_default.png)
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
985 lines
26 KiB
C
985 lines
26 KiB
C
/* $Id: netjet.c,v 1.29.2.4 2004/02/11 13:21:34 keil Exp $
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*
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* low level stuff for Traverse Technologie NETJet ISDN cards
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*
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* Author Karsten Keil
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* Copyright by Karsten Keil <keil@isdn4linux.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* Thanks to Traverse Technologies Australia for documents and information
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*
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* 16-Apr-2002 - led code added - Guy Ellis (guy@traverse.com.au)
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*
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*/
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#include <linux/init.h>
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#include "hisax.h"
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#include "isac.h"
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#include "hscx.h"
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#include "isdnl1.h"
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#include <linux/interrupt.h>
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#include <linux/ppp_defs.h>
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#include <linux/slab.h>
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#include <asm/io.h>
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#include "netjet.h"
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/* Interface functions */
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u_char
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NETjet_ReadIC(struct IsdnCardState *cs, u_char offset)
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{
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u_char ret;
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cs->hw.njet.auxd &= 0xfc;
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cs->hw.njet.auxd |= (offset >> 4) & 3;
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byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
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ret = bytein(cs->hw.njet.isac + ((offset & 0xf) << 2));
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return (ret);
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}
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void
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NETjet_WriteIC(struct IsdnCardState *cs, u_char offset, u_char value)
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{
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cs->hw.njet.auxd &= 0xfc;
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cs->hw.njet.auxd |= (offset >> 4) & 3;
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byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
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byteout(cs->hw.njet.isac + ((offset & 0xf) << 2), value);
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}
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void
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NETjet_ReadICfifo(struct IsdnCardState *cs, u_char *data, int size)
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{
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cs->hw.njet.auxd &= 0xfc;
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byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
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insb(cs->hw.njet.isac, data, size);
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}
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void
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NETjet_WriteICfifo(struct IsdnCardState *cs, u_char *data, int size)
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{
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cs->hw.njet.auxd &= 0xfc;
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byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
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outsb(cs->hw.njet.isac, data, size);
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}
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static void fill_mem(struct BCState *bcs, u_int *pos, u_int cnt, int chan, u_char fill)
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{
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u_int mask = 0x000000ff, val = 0, *p = pos;
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u_int i;
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val |= fill;
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if (chan) {
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val <<= 8;
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mask <<= 8;
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}
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mask ^= 0xffffffff;
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for (i = 0; i < cnt; i++) {
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*p &= mask;
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*p++ |= val;
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if (p > bcs->hw.tiger.s_end)
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p = bcs->hw.tiger.send;
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}
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}
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static void
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mode_tiger(struct BCState *bcs, int mode, int bc)
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{
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struct IsdnCardState *cs = bcs->cs;
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u_char led;
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if (cs->debug & L1_DEB_HSCX)
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debugl1(cs, "Tiger mode %d bchan %d/%d",
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mode, bc, bcs->channel);
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bcs->mode = mode;
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bcs->channel = bc;
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switch (mode) {
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case (L1_MODE_NULL):
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fill_mem(bcs, bcs->hw.tiger.send,
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NETJET_DMA_TXSIZE, bc, 0xff);
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if (cs->debug & L1_DEB_HSCX)
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debugl1(cs, "Tiger stat rec %d/%d send %d",
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bcs->hw.tiger.r_tot, bcs->hw.tiger.r_err,
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bcs->hw.tiger.s_tot);
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if ((cs->bcs[0].mode == L1_MODE_NULL) &&
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(cs->bcs[1].mode == L1_MODE_NULL)) {
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cs->hw.njet.dmactrl = 0;
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byteout(cs->hw.njet.base + NETJET_DMACTRL,
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cs->hw.njet.dmactrl);
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byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0);
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}
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if (cs->typ == ISDN_CTYPE_NETJET_S)
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{
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// led off
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led = bc & 0x01;
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led = 0x01 << (6 + led); // convert to mask
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led = ~led;
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cs->hw.njet.auxd &= led;
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byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
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}
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break;
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case (L1_MODE_TRANS):
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break;
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case (L1_MODE_HDLC_56K):
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case (L1_MODE_HDLC):
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fill_mem(bcs, bcs->hw.tiger.send,
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NETJET_DMA_TXSIZE, bc, 0xff);
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bcs->hw.tiger.r_state = HDLC_ZERO_SEARCH;
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bcs->hw.tiger.r_tot = 0;
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bcs->hw.tiger.r_bitcnt = 0;
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bcs->hw.tiger.r_one = 0;
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bcs->hw.tiger.r_err = 0;
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bcs->hw.tiger.s_tot = 0;
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if (!cs->hw.njet.dmactrl) {
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fill_mem(bcs, bcs->hw.tiger.send,
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NETJET_DMA_TXSIZE, !bc, 0xff);
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cs->hw.njet.dmactrl = 1;
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byteout(cs->hw.njet.base + NETJET_DMACTRL,
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cs->hw.njet.dmactrl);
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byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0x0f);
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/* was 0x3f now 0x0f for TJ300 and TJ320 GE 13/07/00 */
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}
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bcs->hw.tiger.sendp = bcs->hw.tiger.send;
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bcs->hw.tiger.free = NETJET_DMA_TXSIZE;
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test_and_set_bit(BC_FLG_EMPTY, &bcs->Flag);
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if (cs->typ == ISDN_CTYPE_NETJET_S)
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{
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// led on
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led = bc & 0x01;
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led = 0x01 << (6 + led); // convert to mask
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cs->hw.njet.auxd |= led;
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byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
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}
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break;
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}
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if (cs->debug & L1_DEB_HSCX)
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debugl1(cs, "tiger: set %x %x %x %x/%x pulse=%d",
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bytein(cs->hw.njet.base + NETJET_DMACTRL),
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bytein(cs->hw.njet.base + NETJET_IRQMASK0),
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bytein(cs->hw.njet.base + NETJET_IRQSTAT0),
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inl(cs->hw.njet.base + NETJET_DMA_READ_ADR),
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inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR),
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bytein(cs->hw.njet.base + NETJET_PULSE_CNT));
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}
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static void printframe(struct IsdnCardState *cs, u_char *buf, int count, char *s) {
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char tmp[128];
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char *t = tmp;
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int i = count, j;
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u_char *p = buf;
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t += sprintf(t, "tiger %s(%4d)", s, count);
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while (i > 0) {
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if (i > 16)
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j = 16;
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else
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j = i;
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QuickHex(t, p, j);
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debugl1(cs, "%s", tmp);
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p += j;
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i -= j;
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t = tmp;
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t += sprintf(t, "tiger %s ", s);
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}
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}
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// macro for 64k
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#define MAKE_RAW_BYTE for (j = 0; j < 8; j++) { \
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bitcnt++; \
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s_val >>= 1; \
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if (val & 1) { \
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s_one++; \
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s_val |= 0x80; \
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} else { \
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s_one = 0; \
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s_val &= 0x7f; \
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} \
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if (bitcnt == 8) { \
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val; \
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bitcnt = 0; \
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} \
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if (s_one == 5) { \
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s_val >>= 1; \
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s_val &= 0x7f; \
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bitcnt++; \
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s_one = 0; \
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} \
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if (bitcnt == 8) { \
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val; \
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bitcnt = 0; \
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} \
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val >>= 1; \
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}
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static int make_raw_data(struct BCState *bcs) {
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// this make_raw is for 64k
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register u_int i, s_cnt = 0;
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register u_char j;
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register u_char val;
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register u_char s_one = 0;
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register u_char s_val = 0;
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register u_char bitcnt = 0;
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u_int fcs;
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if (!bcs->tx_skb) {
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debugl1(bcs->cs, "tiger make_raw: NULL skb");
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return (1);
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}
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bcs->hw.tiger.sendbuf[s_cnt++] = HDLC_FLAG_VALUE;
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fcs = PPP_INITFCS;
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for (i = 0; i < bcs->tx_skb->len; i++) {
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val = bcs->tx_skb->data[i];
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fcs = PPP_FCS(fcs, val);
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MAKE_RAW_BYTE;
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}
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fcs ^= 0xffff;
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val = fcs & 0xff;
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MAKE_RAW_BYTE;
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val = (fcs >> 8) & 0xff;
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MAKE_RAW_BYTE;
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val = HDLC_FLAG_VALUE;
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for (j = 0; j < 8; j++) {
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bitcnt++;
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s_val >>= 1;
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if (val & 1)
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s_val |= 0x80;
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else
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s_val &= 0x7f;
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if (bitcnt == 8) {
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
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bitcnt = 0;
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}
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val >>= 1;
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}
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if (bcs->cs->debug & L1_DEB_HSCX)
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debugl1(bcs->cs, "tiger make_raw: in %u out %d.%d",
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bcs->tx_skb->len, s_cnt, bitcnt);
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if (bitcnt) {
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while (8 > bitcnt++) {
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s_val >>= 1;
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s_val |= 0x80;
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}
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
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bcs->hw.tiger.sendbuf[s_cnt++] = 0xff; // NJ<->NJ thoughput bug fix
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}
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bcs->hw.tiger.sendcnt = s_cnt;
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bcs->tx_cnt -= bcs->tx_skb->len;
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bcs->hw.tiger.sp = bcs->hw.tiger.sendbuf;
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return (0);
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}
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// macro for 56k
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#define MAKE_RAW_BYTE_56K for (j = 0; j < 8; j++) { \
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bitcnt++; \
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s_val >>= 1; \
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if (val & 1) { \
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s_one++; \
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s_val |= 0x80; \
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} else { \
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s_one = 0; \
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s_val &= 0x7f; \
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} \
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if (bitcnt == 7) { \
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s_val >>= 1; \
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s_val |= 0x80; \
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val; \
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bitcnt = 0; \
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} \
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if (s_one == 5) { \
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s_val >>= 1; \
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s_val &= 0x7f; \
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bitcnt++; \
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s_one = 0; \
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} \
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if (bitcnt == 7) { \
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s_val >>= 1; \
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s_val |= 0x80; \
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val; \
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bitcnt = 0; \
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} \
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val >>= 1; \
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}
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static int make_raw_data_56k(struct BCState *bcs) {
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// this make_raw is for 56k
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register u_int i, s_cnt = 0;
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register u_char j;
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register u_char val;
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register u_char s_one = 0;
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register u_char s_val = 0;
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register u_char bitcnt = 0;
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u_int fcs;
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if (!bcs->tx_skb) {
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debugl1(bcs->cs, "tiger make_raw_56k: NULL skb");
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return (1);
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}
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val = HDLC_FLAG_VALUE;
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for (j = 0; j < 8; j++) {
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bitcnt++;
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s_val >>= 1;
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if (val & 1)
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s_val |= 0x80;
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else
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s_val &= 0x7f;
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if (bitcnt == 7) {
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s_val >>= 1;
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s_val |= 0x80;
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bcs->hw.tiger.sendbuf[s_cnt++] = s_val;
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bitcnt = 0;
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}
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val >>= 1;
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};
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fcs = PPP_INITFCS;
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for (i = 0; i < bcs->tx_skb->len; i++) {
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val = bcs->tx_skb->data[i];
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fcs = PPP_FCS(fcs, val);
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MAKE_RAW_BYTE_56K;
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}
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fcs ^= 0xffff;
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val = fcs & 0xff;
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MAKE_RAW_BYTE_56K;
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val = (fcs >> 8) & 0xff;
|
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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);
|
|
}
|