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linux/drivers/isdn/hisax/avm_pci.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

904 lines
23 KiB
C
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/* $Id: avm_pci.c,v 1.29.2.4 2004/02/11 13:21:32 keil Exp $
*
* low level stuff for AVM Fritz!PCI and ISA PnP 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 AVM, Berlin for information
*
*/
#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "isdnl1.h"
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/isapnp.h>
#include <linux/interrupt.h>
static const char *avm_pci_rev = "$Revision: 1.29.2.4 $";
#define AVM_FRITZ_PCI 1
#define AVM_FRITZ_PNP 2
#define HDLC_FIFO 0x0
#define HDLC_STATUS 0x4
#define AVM_HDLC_1 0x00
#define AVM_HDLC_2 0x01
#define AVM_ISAC_FIFO 0x02
#define AVM_ISAC_REG_LOW 0x04
#define AVM_ISAC_REG_HIGH 0x06
#define AVM_STATUS0_IRQ_ISAC 0x01
#define AVM_STATUS0_IRQ_HDLC 0x02
#define AVM_STATUS0_IRQ_TIMER 0x04
#define AVM_STATUS0_IRQ_MASK 0x07
#define AVM_STATUS0_RESET 0x01
#define AVM_STATUS0_DIS_TIMER 0x02
#define AVM_STATUS0_RES_TIMER 0x04
#define AVM_STATUS0_ENA_IRQ 0x08
#define AVM_STATUS0_TESTBIT 0x10
#define AVM_STATUS1_INT_SEL 0x0f
#define AVM_STATUS1_ENA_IOM 0x80
#define HDLC_MODE_ITF_FLG 0x01
#define HDLC_MODE_TRANS 0x02
#define HDLC_MODE_CCR_7 0x04
#define HDLC_MODE_CCR_16 0x08
#define HDLC_MODE_TESTLOOP 0x80
#define HDLC_INT_XPR 0x80
#define HDLC_INT_XDU 0x40
#define HDLC_INT_RPR 0x20
#define HDLC_INT_MASK 0xE0
#define HDLC_STAT_RME 0x01
#define HDLC_STAT_RDO 0x10
#define HDLC_STAT_CRCVFRRAB 0x0E
#define HDLC_STAT_CRCVFR 0x06
#define HDLC_STAT_RML_MASK 0x3f00
#define HDLC_CMD_XRS 0x80
#define HDLC_CMD_XME 0x01
#define HDLC_CMD_RRS 0x20
#define HDLC_CMD_XML_MASK 0x3f00
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
register u_char idx = (offset > 0x2f) ? AVM_ISAC_REG_HIGH : AVM_ISAC_REG_LOW;
register u_char val;
outb(idx, cs->hw.avm.cfg_reg + 4);
val = inb(cs->hw.avm.isac + (offset & 0xf));
return (val);
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
register u_char idx = (offset > 0x2f) ? AVM_ISAC_REG_HIGH : AVM_ISAC_REG_LOW;
outb(idx, cs->hw.avm.cfg_reg + 4);
outb(value, cs->hw.avm.isac + (offset & 0xf));
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
outb(AVM_ISAC_FIFO, cs->hw.avm.cfg_reg + 4);
insb(cs->hw.avm.isac, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
outb(AVM_ISAC_FIFO, cs->hw.avm.cfg_reg + 4);
outsb(cs->hw.avm.isac, data, size);
}
static inline u_int
ReadHDLCPCI(struct IsdnCardState *cs, int chan, u_char offset)
{
register u_int idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
register u_int val;
outl(idx, cs->hw.avm.cfg_reg + 4);
val = inl(cs->hw.avm.isac + offset);
return (val);
}
static inline void
WriteHDLCPCI(struct IsdnCardState *cs, int chan, u_char offset, u_int value)
{
register u_int idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
outl(idx, cs->hw.avm.cfg_reg + 4);
outl(value, cs->hw.avm.isac + offset);
}
static inline u_char
ReadHDLCPnP(struct IsdnCardState *cs, int chan, u_char offset)
{
register u_char idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
register u_char val;
outb(idx, cs->hw.avm.cfg_reg + 4);
val = inb(cs->hw.avm.isac + offset);
return (val);
}
static inline void
WriteHDLCPnP(struct IsdnCardState *cs, int chan, u_char offset, u_char value)
{
register u_char idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
outb(idx, cs->hw.avm.cfg_reg + 4);
outb(value, cs->hw.avm.isac + offset);
}
static u_char
ReadHDLC_s(struct IsdnCardState *cs, int chan, u_char offset)
{
return(0xff & ReadHDLCPCI(cs, chan, offset));
}
static void
WriteHDLC_s(struct IsdnCardState *cs, int chan, u_char offset, u_char value)
{
WriteHDLCPCI(cs, chan, offset, value);
}
static inline
struct BCState *Sel_BCS(struct IsdnCardState *cs, int channel)
{
if (cs->bcs[0].mode && (cs->bcs[0].channel == channel))
return(&cs->bcs[0]);
else if (cs->bcs[1].mode && (cs->bcs[1].channel == channel))
return(&cs->bcs[1]);
else
return(NULL);
}
static void
write_ctrl(struct BCState *bcs, int which) {
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs, "hdlc %c wr%x ctrl %x",
'A' + bcs->channel, which, bcs->hw.hdlc.ctrl.ctrl);
if (bcs->cs->subtyp == AVM_FRITZ_PCI) {
WriteHDLCPCI(bcs->cs, bcs->channel, HDLC_STATUS, bcs->hw.hdlc.ctrl.ctrl);
} else {
if (which & 4)
WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS + 2,
bcs->hw.hdlc.ctrl.sr.mode);
if (which & 2)
WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS + 1,
bcs->hw.hdlc.ctrl.sr.xml);
if (which & 1)
WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS,
bcs->hw.hdlc.ctrl.sr.cmd);
}
}
static void
modehdlc(struct BCState *bcs, int mode, int bc)
{
struct IsdnCardState *cs = bcs->cs;
int hdlc = bcs->channel;
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "hdlc %c mode %d --> %d ichan %d --> %d",
'A' + hdlc, bcs->mode, mode, hdlc, bc);
bcs->hw.hdlc.ctrl.ctrl = 0;
switch (mode) {
case (-1): /* used for init */
bcs->mode = 1;
bcs->channel = bc;
bc = 0;
case (L1_MODE_NULL):
if (bcs->mode == L1_MODE_NULL)
return;
bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_TRANS;
write_ctrl(bcs, 5);
bcs->mode = L1_MODE_NULL;
bcs->channel = bc;
break;
case (L1_MODE_TRANS):
bcs->mode = mode;
bcs->channel = bc;
bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_TRANS;
write_ctrl(bcs, 5);
bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS;
write_ctrl(bcs, 1);
bcs->hw.hdlc.ctrl.sr.cmd = 0;
schedule_event(bcs, B_XMTBUFREADY);
break;
case (L1_MODE_HDLC):
bcs->mode = mode;
bcs->channel = bc;
bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_ITF_FLG;
write_ctrl(bcs, 5);
bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS;
write_ctrl(bcs, 1);
bcs->hw.hdlc.ctrl.sr.cmd = 0;
schedule_event(bcs, B_XMTBUFREADY);
break;
}
}
static inline void
hdlc_empty_fifo(struct BCState *bcs, int count)
{
register u_int *ptr;
u_char *p;
u_char idx = bcs->channel ? AVM_HDLC_2 : AVM_HDLC_1;
int cnt=0;
struct IsdnCardState *cs = bcs->cs;
if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
debugl1(cs, "hdlc_empty_fifo %d", count);
if (bcs->hw.hdlc.rcvidx + count > HSCX_BUFMAX) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "hdlc_empty_fifo: incoming packet too large");
return;
}
p = bcs->hw.hdlc.rcvbuf + bcs->hw.hdlc.rcvidx;
ptr = (u_int *)p;
bcs->hw.hdlc.rcvidx += count;
if (cs->subtyp == AVM_FRITZ_PCI) {
outl(idx, cs->hw.avm.cfg_reg + 4);
while (cnt < count) {
#ifdef __powerpc__
*ptr++ = in_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE));
#else
*ptr++ = inl(cs->hw.avm.isac);
#endif /* __powerpc__ */
cnt += 4;
}
} else {
outb(idx, cs->hw.avm.cfg_reg + 4);
while (cnt < count) {
*p++ = inb(cs->hw.avm.isac);
cnt++;
}
}
if (cs->debug & L1_DEB_HSCX_FIFO) {
char *t = bcs->blog;
if (cs->subtyp == AVM_FRITZ_PNP)
p = (u_char *) ptr;
t += sprintf(t, "hdlc_empty_fifo %c cnt %d",
bcs->channel ? 'B' : 'A', count);
QuickHex(t, p, count);
debugl1(cs, bcs->blog);
}
}
static inline void
hdlc_fill_fifo(struct BCState *bcs)
{
struct IsdnCardState *cs = bcs->cs;
int count, cnt =0;
int fifo_size = 32;
u_char *p;
u_int *ptr;
if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
debugl1(cs, "hdlc_fill_fifo");
if (!bcs->tx_skb)
return;
if (bcs->tx_skb->len <= 0)
return;
bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_XME;
if (bcs->tx_skb->len > fifo_size) {
count = fifo_size;
} else {
count = bcs->tx_skb->len;
if (bcs->mode != L1_MODE_TRANS)
bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_XME;
}
if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
debugl1(cs, "hdlc_fill_fifo %d/%ld", count, bcs->tx_skb->len);
p = bcs->tx_skb->data;
ptr = (u_int *)p;
skb_pull(bcs->tx_skb, count);
bcs->tx_cnt -= count;
bcs->hw.hdlc.count += count;
bcs->hw.hdlc.ctrl.sr.xml = ((count == fifo_size) ? 0 : count);
write_ctrl(bcs, 3); /* sets the correct index too */
if (cs->subtyp == AVM_FRITZ_PCI) {
while (cnt<count) {
#ifdef __powerpc__
out_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE), *ptr++);
#else
outl(*ptr++, cs->hw.avm.isac);
#endif /* __powerpc__ */
cnt += 4;
}
} else {
while (cnt<count) {
outb(*p++, cs->hw.avm.isac);
cnt++;
}
}
if (cs->debug & L1_DEB_HSCX_FIFO) {
char *t = bcs->blog;
if (cs->subtyp == AVM_FRITZ_PNP)
p = (u_char *) ptr;
t += sprintf(t, "hdlc_fill_fifo %c cnt %d",
bcs->channel ? 'B' : 'A', count);
QuickHex(t, p, count);
debugl1(cs, bcs->blog);
}
}
static void
HDLC_irq(struct BCState *bcs, u_int stat) {
int len;
struct sk_buff *skb;
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs, "ch%d stat %#x", bcs->channel, stat);
if (stat & HDLC_INT_RPR) {
if (stat & HDLC_STAT_RDO) {
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs, "RDO");
else
debugl1(bcs->cs, "ch%d stat %#x", bcs->channel, stat);
bcs->hw.hdlc.ctrl.sr.xml = 0;
bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_RRS;
write_ctrl(bcs, 1);
bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_RRS;
write_ctrl(bcs, 1);
bcs->hw.hdlc.rcvidx = 0;
} else {
if (!(len = (stat & HDLC_STAT_RML_MASK)>>8))
len = 32;
hdlc_empty_fifo(bcs, len);
if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) {
if (((stat & HDLC_STAT_CRCVFRRAB)==HDLC_STAT_CRCVFR) ||
(bcs->mode == L1_MODE_TRANS)) {
if (!(skb = dev_alloc_skb(bcs->hw.hdlc.rcvidx)))
printk(KERN_WARNING "HDLC: receive out of memory\n");
else {
memcpy(skb_put(skb, bcs->hw.hdlc.rcvidx),
bcs->hw.hdlc.rcvbuf, bcs->hw.hdlc.rcvidx);
skb_queue_tail(&bcs->rqueue, skb);
}
bcs->hw.hdlc.rcvidx = 0;
schedule_event(bcs, B_RCVBUFREADY);
} else {
if (bcs->cs->debug & L1_DEB_HSCX)
debugl1(bcs->cs, "invalid frame");
else
debugl1(bcs->cs, "ch%d invalid frame %#x", bcs->channel, stat);
bcs->hw.hdlc.rcvidx = 0;
}
}
}
}
if (stat & HDLC_INT_XDU) {
/* Here we lost an TX interrupt, so
* restart transmitting the whole frame.
*/
if (bcs->tx_skb) {
skb_push(bcs->tx_skb, bcs->hw.hdlc.count);
bcs->tx_cnt += bcs->hw.hdlc.count;
bcs->hw.hdlc.count = 0;
if (bcs->cs->debug & L1_DEB_WARN)
debugl1(bcs->cs, "ch%d XDU", bcs->channel);
} else if (bcs->cs->debug & L1_DEB_WARN)
debugl1(bcs->cs, "ch%d XDU without skb", bcs->channel);
bcs->hw.hdlc.ctrl.sr.xml = 0;
bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_XRS;
write_ctrl(bcs, 1);
bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_XRS;
write_ctrl(bcs, 1);
hdlc_fill_fifo(bcs);
} else if (stat & HDLC_INT_XPR) {
if (bcs->tx_skb) {
if (bcs->tx_skb->len) {
hdlc_fill_fifo(bcs);
return;
} 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->hw.hdlc.count;
spin_unlock_irqrestore(&bcs->aclock, flags);
schedule_event(bcs, B_ACKPENDING);
}
dev_kfree_skb_irq(bcs->tx_skb);
bcs->hw.hdlc.count = 0;
bcs->tx_skb = NULL;
}
}
if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
bcs->hw.hdlc.count = 0;
test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
hdlc_fill_fifo(bcs);
} else {
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
schedule_event(bcs, B_XMTBUFREADY);
}
}
}
static inline void
HDLC_irq_main(struct IsdnCardState *cs)
{
u_int stat;
struct BCState *bcs;
if (cs->subtyp == AVM_FRITZ_PCI) {
stat = ReadHDLCPCI(cs, 0, HDLC_STATUS);
} else {
stat = ReadHDLCPnP(cs, 0, HDLC_STATUS);
if (stat & HDLC_INT_RPR)
stat |= (ReadHDLCPnP(cs, 0, HDLC_STATUS+1))<<8;
}
if (stat & HDLC_INT_MASK) {
if (!(bcs = Sel_BCS(cs, 0))) {
if (cs->debug)
debugl1(cs, "hdlc spurious channel 0 IRQ");
} else
HDLC_irq(bcs, stat);
}
if (cs->subtyp == AVM_FRITZ_PCI) {
stat = ReadHDLCPCI(cs, 1, HDLC_STATUS);
} else {
stat = ReadHDLCPnP(cs, 1, HDLC_STATUS);
if (stat & HDLC_INT_RPR)
stat |= (ReadHDLCPnP(cs, 1, HDLC_STATUS+1))<<8;
}
if (stat & HDLC_INT_MASK) {
if (!(bcs = Sel_BCS(cs, 1))) {
if (cs->debug)
debugl1(cs, "hdlc spurious channel 1 IRQ");
} else
HDLC_irq(bcs, stat);
}
}
static void
hdlc_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;
test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
bcs->hw.hdlc.count = 0;
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 "hdlc_l2l1: this shouldn't happen\n");
} else {
test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
bcs->tx_skb = skb;
bcs->hw.hdlc.count = 0;
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);
modehdlc(bcs, st->l1.mode, st->l1.bc);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
l1_msg_b(st, pr, arg);
break;
case (PH_DEACTIVATE | REQUEST):
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);
modehdlc(bcs, 0, st->l1.bc);
spin_unlock_irqrestore(&bcs->cs->lock, flags);
st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
break;
}
}
static void
close_hdlcstate(struct BCState *bcs)
{
modehdlc(bcs, 0, 0);
if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
kfree(bcs->hw.hdlc.rcvbuf);
bcs->hw.hdlc.rcvbuf = NULL;
kfree(bcs->blog);
bcs->blog = 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_hdlcstate(struct IsdnCardState *cs, struct BCState *bcs)
{
if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
if (!(bcs->hw.hdlc.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
printk(KERN_WARNING
"HiSax: No memory for hdlc.rcvbuf\n");
return (1);
}
if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) {
printk(KERN_WARNING
"HiSax: No memory for bcs->blog\n");
test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
kfree(bcs->hw.hdlc.rcvbuf);
bcs->hw.hdlc.rcvbuf = NULL;
return (2);
}
skb_queue_head_init(&bcs->rqueue);
skb_queue_head_init(&bcs->squeue);
}
bcs->tx_skb = NULL;
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
bcs->event = 0;
bcs->hw.hdlc.rcvidx = 0;
bcs->tx_cnt = 0;
return (0);
}
static int
setstack_hdlc(struct PStack *st, struct BCState *bcs)
{
bcs->channel = st->l1.bc;
if (open_hdlcstate(st->l1.hardware, bcs))
return (-1);
st->l1.bcs = bcs;
st->l2.l2l1 = hdlc_l2l1;
setstack_manager(st);
bcs->st = st;
setstack_l1_B(st);
return (0);
}
#if 0
void __init
clear_pending_hdlc_ints(struct IsdnCardState *cs)
{
u_int val;
if (cs->subtyp == AVM_FRITZ_PCI) {
val = ReadHDLCPCI(cs, 0, HDLC_STATUS);
debugl1(cs, "HDLC 1 STA %x", val);
val = ReadHDLCPCI(cs, 1, HDLC_STATUS);
debugl1(cs, "HDLC 2 STA %x", val);
} else {
val = ReadHDLCPnP(cs, 0, HDLC_STATUS);
debugl1(cs, "HDLC 1 STA %x", val);
val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 1);
debugl1(cs, "HDLC 1 RML %x", val);
val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 2);
debugl1(cs, "HDLC 1 MODE %x", val);
val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 3);
debugl1(cs, "HDLC 1 VIN %x", val);
val = ReadHDLCPnP(cs, 1, HDLC_STATUS);
debugl1(cs, "HDLC 2 STA %x", val);
val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 1);
debugl1(cs, "HDLC 2 RML %x", val);
val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 2);
debugl1(cs, "HDLC 2 MODE %x", val);
val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 3);
debugl1(cs, "HDLC 2 VIN %x", val);
}
}
#endif /* 0 */
static void
inithdlc(struct IsdnCardState *cs)
{
cs->bcs[0].BC_SetStack = setstack_hdlc;
cs->bcs[1].BC_SetStack = setstack_hdlc;
cs->bcs[0].BC_Close = close_hdlcstate;
cs->bcs[1].BC_Close = close_hdlcstate;
modehdlc(cs->bcs, -1, 0);
modehdlc(cs->bcs + 1, -1, 1);
}
static irqreturn_t
avm_pcipnp_interrupt(int intno, void *dev_id)
{
struct IsdnCardState *cs = dev_id;
u_long flags;
u_char val;
u_char sval;
spin_lock_irqsave(&cs->lock, flags);
sval = inb(cs->hw.avm.cfg_reg + 2);
if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK) {
/* possible a shared IRQ reqest */
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_NONE;
}
if (!(sval & AVM_STATUS0_IRQ_ISAC)) {
val = ReadISAC(cs, ISAC_ISTA);
isac_interrupt(cs, val);
}
if (!(sval & AVM_STATUS0_IRQ_HDLC)) {
HDLC_irq_main(cs);
}
WriteISAC(cs, ISAC_MASK, 0xFF);
WriteISAC(cs, ISAC_MASK, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
reset_avmpcipnp(struct IsdnCardState *cs)
{
printk(KERN_INFO "AVM PCI/PnP: reset\n");
outb(AVM_STATUS0_RESET | AVM_STATUS0_DIS_TIMER, cs->hw.avm.cfg_reg + 2);
mdelay(10);
outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER | AVM_STATUS0_ENA_IRQ, cs->hw.avm.cfg_reg + 2);
outb(AVM_STATUS1_ENA_IOM | cs->irq, cs->hw.avm.cfg_reg + 3);
mdelay(10);
printk(KERN_INFO "AVM PCI/PnP: S1 %x\n", inb(cs->hw.avm.cfg_reg + 3));
}
static int
AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
reset_avmpcipnp(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_RELEASE:
outb(0, cs->hw.avm.cfg_reg + 2);
release_region(cs->hw.avm.cfg_reg, 32);
return(0);
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
reset_avmpcipnp(cs);
clear_pending_isac_ints(cs);
initisac(cs);
inithdlc(cs);
outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER,
cs->hw.avm.cfg_reg + 2);
WriteISAC(cs, ISAC_MASK, 0);
outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER |
AVM_STATUS0_ENA_IRQ, cs->hw.avm.cfg_reg + 2);
/* RESET Receiver and Transmitter */
WriteISAC(cs, ISAC_CMDR, 0x41);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_TEST:
return(0);
}
return(0);
}
static int __devinit avm_setup_rest(struct IsdnCardState *cs)
{
u_int val, ver;
cs->hw.avm.isac = cs->hw.avm.cfg_reg + 0x10;
if (!request_region(cs->hw.avm.cfg_reg, 32,
(cs->subtyp == AVM_FRITZ_PCI) ? "avm PCI" : "avm PnP")) {
printk(KERN_WARNING
"HiSax: Fritz!PCI/PNP config port %x-%x already in use\n",
cs->hw.avm.cfg_reg,
cs->hw.avm.cfg_reg + 31);
return (0);
}
switch (cs->subtyp) {
case AVM_FRITZ_PCI:
val = inl(cs->hw.avm.cfg_reg);
printk(KERN_INFO "AVM PCI: stat %#x\n", val);
printk(KERN_INFO "AVM PCI: Class %X Rev %d\n",
val & 0xff, (val>>8) & 0xff);
cs->BC_Read_Reg = &ReadHDLC_s;
cs->BC_Write_Reg = &WriteHDLC_s;
break;
case AVM_FRITZ_PNP:
val = inb(cs->hw.avm.cfg_reg);
ver = inb(cs->hw.avm.cfg_reg + 1);
printk(KERN_INFO "AVM PnP: Class %X Rev %d\n", val, ver);
cs->BC_Read_Reg = &ReadHDLCPnP;
cs->BC_Write_Reg = &WriteHDLCPnP;
break;
default:
printk(KERN_WARNING "AVM unknown subtype %d\n", cs->subtyp);
return(0);
}
printk(KERN_INFO "HiSax: %s config irq:%d base:0x%X\n",
(cs->subtyp == AVM_FRITZ_PCI) ? "AVM Fritz!PCI" : "AVM Fritz!PnP",
cs->irq, cs->hw.avm.cfg_reg);
setup_isac(cs);
cs->readisac = &ReadISAC;
cs->writeisac = &WriteISAC;
cs->readisacfifo = &ReadISACfifo;
cs->writeisacfifo = &WriteISACfifo;
cs->BC_Send_Data = &hdlc_fill_fifo;
cs->cardmsg = &AVM_card_msg;
cs->irq_func = &avm_pcipnp_interrupt;
cs->writeisac(cs, ISAC_MASK, 0xFF);
ISACVersion(cs, (cs->subtyp == AVM_FRITZ_PCI) ? "AVM PCI:" : "AVM PnP:");
return (1);
}
#ifndef __ISAPNP__
static int __devinit avm_pnp_setup(struct IsdnCardState *cs)
{
return(1); /* no-op: success */
}
#else
static struct pnp_card *pnp_avm_c __devinitdata = NULL;
static int __devinit avm_pnp_setup(struct IsdnCardState *cs)
{
struct pnp_dev *pnp_avm_d = NULL;
if (!isapnp_present())
return(1); /* no-op: success */
if ((pnp_avm_c = pnp_find_card(
ISAPNP_VENDOR('A', 'V', 'M'),
ISAPNP_FUNCTION(0x0900), pnp_avm_c))) {
if ((pnp_avm_d = pnp_find_dev(pnp_avm_c,
ISAPNP_VENDOR('A', 'V', 'M'),
ISAPNP_FUNCTION(0x0900), pnp_avm_d))) {
int err;
pnp_disable_dev(pnp_avm_d);
err = pnp_activate_dev(pnp_avm_d);
if (err<0) {
printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
__func__, err);
return(0);
}
cs->hw.avm.cfg_reg =
pnp_port_start(pnp_avm_d, 0);
cs->irq = pnp_irq(pnp_avm_d, 0);
if (!cs->irq) {
printk(KERN_ERR "FritzPnP:No IRQ\n");
return(0);
}
if (!cs->hw.avm.cfg_reg) {
printk(KERN_ERR "FritzPnP:No IO address\n");
return(0);
}
cs->subtyp = AVM_FRITZ_PNP;
return (2); /* goto 'ready' label */
}
}
return (1);
}
#endif /* __ISAPNP__ */
#ifndef CONFIG_PCI
static int __devinit avm_pci_setup(struct IsdnCardState *cs)
{
return(1); /* no-op: success */
}
#else
static struct pci_dev *dev_avm __devinitdata = NULL;
static int __devinit avm_pci_setup(struct IsdnCardState *cs)
{
if ((dev_avm = hisax_find_pci_device(PCI_VENDOR_ID_AVM,
PCI_DEVICE_ID_AVM_A1, dev_avm))) {
if (pci_enable_device(dev_avm))
return(0);
cs->irq = dev_avm->irq;
if (!cs->irq) {
printk(KERN_ERR "FritzPCI: No IRQ for PCI card found\n");
return(0);
}
cs->hw.avm.cfg_reg = pci_resource_start(dev_avm, 1);
if (!cs->hw.avm.cfg_reg) {
printk(KERN_ERR "FritzPCI: No IO-Adr for PCI card found\n");
return(0);
}
cs->subtyp = AVM_FRITZ_PCI;
} else {
printk(KERN_WARNING "FritzPCI: No PCI card found\n");
return(0);
}
cs->irq_flags |= IRQF_SHARED;
return (1);
}
#endif /* CONFIG_PCI */
int __devinit
setup_avm_pcipnp(struct IsdnCard *card)
{
struct IsdnCardState *cs = card->cs;
char tmp[64];
int rc;
strcpy(tmp, avm_pci_rev);
printk(KERN_INFO "HiSax: AVM PCI driver Rev. %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_FRITZPCI)
return (0);
if (card->para[1]) {
/* old manual method */
cs->hw.avm.cfg_reg = card->para[1];
cs->irq = card->para[0];
cs->subtyp = AVM_FRITZ_PNP;
goto ready;
}
rc = avm_pnp_setup(cs);
if (rc < 1)
return (0);
if (rc == 2)
goto ready;
rc = avm_pci_setup(cs);
if (rc < 1)
return (0);
ready:
return avm_setup_rest(cs);
}
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