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linux/drivers/isdn/hardware/mISDN/w6692.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

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/*
* w6692.c mISDN driver for Winbond w6692 based cards
*
* Author Karsten Keil <kkeil@suse.de>
* based on the w6692 I4L driver from Petr Novak <petr.novak@i.cz>
*
* Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/mISDNhw.h>
#include <linux/slab.h>
#include "w6692.h"
#define W6692_REV "2.0"
#define DBUSY_TIMER_VALUE 80
enum {
W6692_ASUS,
W6692_WINBOND,
W6692_USR
};
/* private data in the PCI devices list */
struct w6692map {
u_int subtype;
char *name;
};
static const struct w6692map w6692_map[] =
{
{W6692_ASUS, "Dynalink/AsusCom IS64PH"},
{W6692_WINBOND, "Winbond W6692"},
{W6692_USR, "USR W6692"}
};
#ifndef PCI_VENDOR_ID_USR
#define PCI_VENDOR_ID_USR 0x16ec
#define PCI_DEVICE_ID_USR_6692 0x3409
#endif
struct w6692_ch {
struct bchannel bch;
u32 addr;
struct timer_list timer;
u8 b_mode;
};
struct w6692_hw {
struct list_head list;
struct pci_dev *pdev;
char name[MISDN_MAX_IDLEN];
u32 irq;
u32 irqcnt;
u32 addr;
u32 fmask; /* feature mask - bit set per card nr */
int subtype;
spinlock_t lock; /* hw lock */
u8 imask;
u8 pctl;
u8 xaddr;
u8 xdata;
u8 state;
struct w6692_ch bc[2];
struct dchannel dch;
char log[64];
};
static LIST_HEAD(Cards);
static DEFINE_RWLOCK(card_lock); /* protect Cards */
static int w6692_cnt;
static int debug;
static u32 led;
static u32 pots;
static void
_set_debug(struct w6692_hw *card)
{
card->dch.debug = debug;
card->bc[0].bch.debug = debug;
card->bc[1].bch.debug = debug;
}
static int
set_debug(const char *val, struct kernel_param *kp)
{
int ret;
struct w6692_hw *card;
ret = param_set_uint(val, kp);
if (!ret) {
read_lock(&card_lock);
list_for_each_entry(card, &Cards, list)
_set_debug(card);
read_unlock(&card_lock);
}
return ret;
}
MODULE_AUTHOR("Karsten Keil");
MODULE_LICENSE("GPL v2");
MODULE_VERSION(W6692_REV);
module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "W6692 debug mask");
module_param(led, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(led, "W6692 LED support bitmask (one bit per card)");
module_param(pots, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(pots, "W6692 POTS support bitmask (one bit per card)");
static inline u8
ReadW6692(struct w6692_hw *card, u8 offset)
{
return inb(card->addr + offset);
}
static inline void
WriteW6692(struct w6692_hw *card, u8 offset, u8 value)
{
outb(value, card->addr + offset);
}
static inline u8
ReadW6692B(struct w6692_ch *bc, u8 offset)
{
return inb(bc->addr + offset);
}
static inline void
WriteW6692B(struct w6692_ch *bc, u8 offset, u8 value)
{
outb(value, bc->addr + offset);
}
static void
enable_hwirq(struct w6692_hw *card)
{
WriteW6692(card, W_IMASK, card->imask);
}
static void
disable_hwirq(struct w6692_hw *card)
{
WriteW6692(card, W_IMASK, 0xff);
}
static const char *W6692Ver[] = {"V00", "V01", "V10", "V11"};
static void
W6692Version(struct w6692_hw *card)
{
int val;
val = ReadW6692(card, W_D_RBCH);
pr_notice("%s: Winbond W6692 version: %s\n", card->name,
W6692Ver[(val >> 6) & 3]);
}
static void
w6692_led_handler(struct w6692_hw *card, int on)
{
if ((!(card->fmask & led)) || card->subtype == W6692_USR)
return;
if (on) {
card->xdata &= 0xfb; /* LED ON */
WriteW6692(card, W_XDATA, card->xdata);
} else {
card->xdata |= 0x04; /* LED OFF */
WriteW6692(card, W_XDATA, card->xdata);
}
}
static void
ph_command(struct w6692_hw *card, u8 cmd)
{
pr_debug("%s: ph_command %x\n", card->name, cmd);
WriteW6692(card, W_CIX, cmd);
}
static void
W6692_new_ph(struct w6692_hw *card)
{
if (card->state == W_L1CMD_RST)
ph_command(card, W_L1CMD_DRC);
schedule_event(&card->dch, FLG_PHCHANGE);
}
static void
W6692_ph_bh(struct dchannel *dch)
{
struct w6692_hw *card = dch->hw;
switch (card->state) {
case W_L1CMD_RST:
dch->state = 0;
l1_event(dch->l1, HW_RESET_IND);
break;
case W_L1IND_CD:
dch->state = 3;
l1_event(dch->l1, HW_DEACT_CNF);
break;
case W_L1IND_DRD:
dch->state = 3;
l1_event(dch->l1, HW_DEACT_IND);
break;
case W_L1IND_CE:
dch->state = 4;
l1_event(dch->l1, HW_POWERUP_IND);
break;
case W_L1IND_LD:
if (dch->state <= 5) {
dch->state = 5;
l1_event(dch->l1, ANYSIGNAL);
} else {
dch->state = 8;
l1_event(dch->l1, LOSTFRAMING);
}
break;
case W_L1IND_ARD:
dch->state = 6;
l1_event(dch->l1, INFO2);
break;
case W_L1IND_AI8:
dch->state = 7;
l1_event(dch->l1, INFO4_P8);
break;
case W_L1IND_AI10:
dch->state = 7;
l1_event(dch->l1, INFO4_P10);
break;
default:
pr_debug("%s: TE unknown state %02x dch state %02x\n",
card->name, card->state, dch->state);
break;
}
pr_debug("%s: TE newstate %02x\n", card->name, dch->state);
}
static void
W6692_empty_Dfifo(struct w6692_hw *card, int count)
{
struct dchannel *dch = &card->dch;
u8 *ptr;
pr_debug("%s: empty_Dfifo %d\n", card->name, count);
if (!dch->rx_skb) {
dch->rx_skb = mI_alloc_skb(card->dch.maxlen, GFP_ATOMIC);
if (!dch->rx_skb) {
pr_info("%s: D receive out of memory\n", card->name);
WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
return;
}
}
if ((dch->rx_skb->len + count) >= dch->maxlen) {
pr_debug("%s: empty_Dfifo overrun %d\n", card->name,
dch->rx_skb->len + count);
WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
return;
}
ptr = skb_put(dch->rx_skb, count);
insb(card->addr + W_D_RFIFO, ptr, count);
WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
if (debug & DEBUG_HW_DFIFO) {
snprintf(card->log, 63, "D-recv %s %d ",
card->name, count);
print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
}
}
static void
W6692_fill_Dfifo(struct w6692_hw *card)
{
struct dchannel *dch = &card->dch;
int count;
u8 *ptr;
u8 cmd = W_D_CMDR_XMS;
pr_debug("%s: fill_Dfifo\n", card->name);
if (!dch->tx_skb)
return;
count = dch->tx_skb->len - dch->tx_idx;
if (count <= 0)
return;
if (count > W_D_FIFO_THRESH)
count = W_D_FIFO_THRESH;
else
cmd |= W_D_CMDR_XME;
ptr = dch->tx_skb->data + dch->tx_idx;
dch->tx_idx += count;
outsb(card->addr + W_D_XFIFO, ptr, count);
WriteW6692(card, W_D_CMDR, cmd);
if (test_and_set_bit(FLG_BUSY_TIMER, &dch->Flags)) {
pr_debug("%s: fill_Dfifo dbusytimer running\n", card->name);
del_timer(&dch->timer);
}
init_timer(&dch->timer);
dch->timer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ)/1000);
add_timer(&dch->timer);
if (debug & DEBUG_HW_DFIFO) {
snprintf(card->log, 63, "D-send %s %d ",
card->name, count);
print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
}
}
static void
d_retransmit(struct w6692_hw *card)
{
struct dchannel *dch = &card->dch;
if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
del_timer(&dch->timer);
#ifdef FIXME
if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
dchannel_sched_event(dch, D_CLEARBUSY);
#endif
if (test_bit(FLG_TX_BUSY, &dch->Flags)) {
/* Restart frame */
dch->tx_idx = 0;
W6692_fill_Dfifo(card);
} else if (dch->tx_skb) { /* should not happen */
pr_info("%s: %s without TX_BUSY\n", card->name, __func__);
test_and_set_bit(FLG_TX_BUSY, &dch->Flags);
dch->tx_idx = 0;
W6692_fill_Dfifo(card);
} else {
pr_info("%s: XDU no TX_BUSY\n", card->name);
if (get_next_dframe(dch))
W6692_fill_Dfifo(card);
}
}
static void
handle_rxD(struct w6692_hw *card) {
u8 stat;
int count;
stat = ReadW6692(card, W_D_RSTA);
if (stat & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) {
if (stat & W_D_RSTA_RDOV) {
pr_debug("%s: D-channel RDOV\n", card->name);
#ifdef ERROR_STATISTIC
card->dch.err_rx++;
#endif
}
if (stat & W_D_RSTA_CRCE) {
pr_debug("%s: D-channel CRC error\n", card->name);
#ifdef ERROR_STATISTIC
card->dch.err_crc++;
#endif
}
if (stat & W_D_RSTA_RMB) {
pr_debug("%s: D-channel ABORT\n", card->name);
#ifdef ERROR_STATISTIC
card->dch.err_rx++;
#endif
}
if (card->dch.rx_skb)
dev_kfree_skb(card->dch.rx_skb);
card->dch.rx_skb = NULL;
WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST);
} else {
count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1);
if (count == 0)
count = W_D_FIFO_THRESH;
W6692_empty_Dfifo(card, count);
recv_Dchannel(&card->dch);
}
}
static void
handle_txD(struct w6692_hw *card) {
if (test_and_clear_bit(FLG_BUSY_TIMER, &card->dch.Flags))
del_timer(&card->dch.timer);
if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) {
W6692_fill_Dfifo(card);
} else {
if (card->dch.tx_skb)
dev_kfree_skb(card->dch.tx_skb);
if (get_next_dframe(&card->dch))
W6692_fill_Dfifo(card);
}
}
static void
handle_statusD(struct w6692_hw *card)
{
struct dchannel *dch = &card->dch;
u8 exval, v1, cir;
exval = ReadW6692(card, W_D_EXIR);
pr_debug("%s: D_EXIR %02x\n", card->name, exval);
if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) {
/* Transmit underrun/collision */
pr_debug("%s: D-channel underrun/collision\n", card->name);
#ifdef ERROR_STATISTIC
dch->err_tx++;
#endif
d_retransmit(card);
}
if (exval & W_D_EXI_RDOV) { /* RDOV */
pr_debug("%s: D-channel RDOV\n", card->name);
WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST);
}
if (exval & W_D_EXI_TIN2) /* TIN2 - never */
pr_debug("%s: spurious TIN2 interrupt\n", card->name);
if (exval & W_D_EXI_MOC) { /* MOC - not supported */
v1 = ReadW6692(card, W_MOSR);
pr_debug("%s: spurious MOC interrupt MOSR %02x\n",
card->name, v1);
}
if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */
cir = ReadW6692(card, W_CIR);
pr_debug("%s: ISC CIR %02X\n", card->name, cir);
if (cir & W_CIR_ICC) {
v1 = cir & W_CIR_COD_MASK;
pr_debug("%s: ph_state_change %x -> %x\n", card->name,
dch->state, v1);
card->state = v1;
if (card->fmask & led) {
switch (v1) {
case W_L1IND_AI8:
case W_L1IND_AI10:
w6692_led_handler(card, 1);
break;
default:
w6692_led_handler(card, 0);
break;
}
}
W6692_new_ph(card);
}
if (cir & W_CIR_SCC) {
v1 = ReadW6692(card, W_SQR);
pr_debug("%s: SCC SQR %02X\n", card->name, v1);
}
}
if (exval & W_D_EXI_WEXP)
pr_debug("%s: spurious WEXP interrupt!\n", card->name);
if (exval & W_D_EXI_TEXP)
pr_debug("%s: spurious TEXP interrupt!\n", card->name);
}
static void
W6692_empty_Bfifo(struct w6692_ch *wch, int count)
{
struct w6692_hw *card = wch->bch.hw;
u8 *ptr;
pr_debug("%s: empty_Bfifo %d\n", card->name, count);
if (unlikely(wch->bch.state == ISDN_P_NONE)) {
pr_debug("%s: empty_Bfifo ISDN_P_NONE\n", card->name);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
if (wch->bch.rx_skb)
skb_trim(wch->bch.rx_skb, 0);
return;
}
if (!wch->bch.rx_skb) {
wch->bch.rx_skb = mI_alloc_skb(wch->bch.maxlen, GFP_ATOMIC);
if (unlikely(!wch->bch.rx_skb)) {
pr_info("%s: B receive out of memory\n", card->name);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
W_B_CMDR_RACT);
return;
}
}
if (wch->bch.rx_skb->len + count > wch->bch.maxlen) {
pr_debug("%s: empty_Bfifo incoming packet too large\n",
card->name);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
skb_trim(wch->bch.rx_skb, 0);
return;
}
ptr = skb_put(wch->bch.rx_skb, count);
insb(wch->addr + W_B_RFIFO, ptr, count);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
if (debug & DEBUG_HW_DFIFO) {
snprintf(card->log, 63, "B%1d-recv %s %d ",
wch->bch.nr, card->name, count);
print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
}
}
static void
W6692_fill_Bfifo(struct w6692_ch *wch)
{
struct w6692_hw *card = wch->bch.hw;
int count;
u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS;
pr_debug("%s: fill Bfifo\n", card->name);
if (!wch->bch.tx_skb)
return;
count = wch->bch.tx_skb->len - wch->bch.tx_idx;
if (count <= 0)
return;
ptr = wch->bch.tx_skb->data + wch->bch.tx_idx;
if (count > W_B_FIFO_THRESH)
count = W_B_FIFO_THRESH;
else if (test_bit(FLG_HDLC, &wch->bch.Flags))
cmd |= W_B_CMDR_XME;
pr_debug("%s: fill Bfifo%d/%d\n", card->name,
count, wch->bch.tx_idx);
wch->bch.tx_idx += count;
outsb(wch->addr + W_B_XFIFO, ptr, count);
WriteW6692B(wch, W_B_CMDR, cmd);
if (debug & DEBUG_HW_DFIFO) {
snprintf(card->log, 63, "B%1d-send %s %d ",
wch->bch.nr, card->name, count);
print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
}
}
#if 0
static int
setvolume(struct w6692_ch *wch, int mic, struct sk_buff *skb)
{
struct w6692_hw *card = wch->bch.hw;
u16 *vol = (u16 *)skb->data;
u8 val;
if ((!(card->fmask & pots)) ||
!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
return -ENODEV;
if (skb->len < 2)
return -EINVAL;
if (*vol > 7)
return -EINVAL;
val = *vol & 7;
val = 7 - val;
if (mic) {
val <<= 3;
card->xaddr &= 0xc7;
} else {
card->xaddr &= 0xf8;
}
card->xaddr |= val;
WriteW6692(card, W_XADDR, card->xaddr);
return 0;
}
static int
enable_pots(struct w6692_ch *wch)
{
struct w6692_hw *card = wch->bch.hw;
if ((!(card->fmask & pots)) ||
!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
return -ENODEV;
wch->b_mode |= W_B_MODE_EPCM | W_B_MODE_BSW0;
WriteW6692B(wch, W_B_MODE, wch->b_mode);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
card->pctl |= ((wch->bch.nr & 2) ? W_PCTL_PCX : 0);
WriteW6692(card, W_PCTL, card->pctl);
return 0;
}
#endif
static int
disable_pots(struct w6692_ch *wch)
{
struct w6692_hw *card = wch->bch.hw;
if (!(card->fmask & pots))
return -ENODEV;
wch->b_mode &= ~(W_B_MODE_EPCM | W_B_MODE_BSW0);
WriteW6692B(wch, W_B_MODE, wch->b_mode);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
W_B_CMDR_XRST);
return 0;
}
static int
w6692_mode(struct w6692_ch *wch, u32 pr)
{
struct w6692_hw *card;
card = wch->bch.hw;
pr_debug("%s: B%d protocol %x-->%x\n", card->name,
wch->bch.nr, wch->bch.state, pr);
switch (pr) {
case ISDN_P_NONE:
if ((card->fmask & pots) && (wch->b_mode & W_B_MODE_EPCM))
disable_pots(wch);
wch->b_mode = 0;
mISDN_clear_bchannel(&wch->bch);
WriteW6692B(wch, W_B_MODE, wch->b_mode);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
test_and_clear_bit(FLG_HDLC, &wch->bch.Flags);
test_and_clear_bit(FLG_TRANSPARENT, &wch->bch.Flags);
break;
case ISDN_P_B_RAW:
wch->b_mode = W_B_MODE_MMS;
WriteW6692B(wch, W_B_MODE, wch->b_mode);
WriteW6692B(wch, W_B_EXIM, 0);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
W_B_CMDR_XRST);
test_and_set_bit(FLG_TRANSPARENT, &wch->bch.Flags);
break;
case ISDN_P_B_HDLC:
wch->b_mode = W_B_MODE_ITF;
WriteW6692B(wch, W_B_MODE, wch->b_mode);
WriteW6692B(wch, W_B_ADM1, 0xff);
WriteW6692B(wch, W_B_ADM2, 0xff);
WriteW6692B(wch, W_B_EXIM, 0);
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
W_B_CMDR_XRST);
test_and_set_bit(FLG_HDLC, &wch->bch.Flags);
break;
default:
pr_info("%s: protocol %x not known\n", card->name, pr);
return -ENOPROTOOPT;
}
wch->bch.state = pr;
return 0;
}
static void
send_next(struct w6692_ch *wch)
{
if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len)
W6692_fill_Bfifo(wch);
else {
if (wch->bch.tx_skb) {
/* send confirm, on trans, free on hdlc. */
if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
confirm_Bsend(&wch->bch);
dev_kfree_skb(wch->bch.tx_skb);
}
if (get_next_bframe(&wch->bch))
W6692_fill_Bfifo(wch);
}
}
static void
W6692B_interrupt(struct w6692_hw *card, int ch)
{
struct w6692_ch *wch = &card->bc[ch];
int count;
u8 stat, star = 0;
stat = ReadW6692B(wch, W_B_EXIR);
pr_debug("%s: B%d EXIR %02x\n", card->name, wch->bch.nr, stat);
if (stat & W_B_EXI_RME) {
star = ReadW6692B(wch, W_B_STAR);
if (star & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) {
if ((star & W_B_STAR_RDOV) &&
test_bit(FLG_ACTIVE, &wch->bch.Flags)) {
pr_debug("%s: B%d RDOV proto=%x\n", card->name,
wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_rdo++;
#endif
}
if (test_bit(FLG_HDLC, &wch->bch.Flags)) {
if (star & W_B_STAR_CRCE) {
pr_debug("%s: B%d CRC error\n",
card->name, wch->bch.nr);
#ifdef ERROR_STATISTIC
wch->bch.err_crc++;
#endif
}
if (star & W_B_STAR_RMB) {
pr_debug("%s: B%d message abort\n",
card->name, wch->bch.nr);
#ifdef ERROR_STATISTIC
wch->bch.err_inv++;
#endif
}
}
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
W_B_CMDR_RRST | W_B_CMDR_RACT);
if (wch->bch.rx_skb)
skb_trim(wch->bch.rx_skb, 0);
} else {
count = ReadW6692B(wch, W_B_RBCL) &
(W_B_FIFO_THRESH - 1);
if (count == 0)
count = W_B_FIFO_THRESH;
W6692_empty_Bfifo(wch, count);
recv_Bchannel(&wch->bch, 0);
}
}
if (stat & W_B_EXI_RMR) {
if (!(stat & W_B_EXI_RME))
star = ReadW6692B(wch, W_B_STAR);
if (star & W_B_STAR_RDOV) {
pr_debug("%s: B%d RDOV proto=%x\n", card->name,
wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_rdo++;
#endif
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
W_B_CMDR_RRST | W_B_CMDR_RACT);
} else {
W6692_empty_Bfifo(wch, W_B_FIFO_THRESH);
if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags) &&
wch->bch.rx_skb && (wch->bch.rx_skb->len > 0))
recv_Bchannel(&wch->bch, 0);
}
}
if (stat & W_B_EXI_RDOV) {
/* only if it is not handled yet */
if (!(star & W_B_STAR_RDOV)) {
pr_debug("%s: B%d RDOV IRQ proto=%x\n", card->name,
wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_rdo++;
#endif
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
W_B_CMDR_RRST | W_B_CMDR_RACT);
}
}
if (stat & W_B_EXI_XFR) {
if (!(stat & (W_B_EXI_RME | W_B_EXI_RMR))) {
star = ReadW6692B(wch, W_B_STAR);
pr_debug("%s: B%d star %02x\n", card->name,
wch->bch.nr, star);
}
if (star & W_B_STAR_XDOW) {
pr_debug("%s: B%d XDOW proto=%x\n", card->name,
wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_xdu++;
#endif
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST |
W_B_CMDR_RACT);
/* resend */
if (wch->bch.tx_skb) {
if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
wch->bch.tx_idx = 0;
}
}
send_next(wch);
if (stat & W_B_EXI_XDUN)
return; /* handle XDOW only once */
}
if (stat & W_B_EXI_XDUN) {
pr_debug("%s: B%d XDUN proto=%x\n", card->name,
wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_xdu++;
#endif
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT);
/* resend */
if (wch->bch.tx_skb) {
if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
wch->bch.tx_idx = 0;
}
send_next(wch);
}
}
static irqreturn_t
w6692_irq(int intno, void *dev_id)
{
struct w6692_hw *card = dev_id;
u8 ista;
spin_lock(&card->lock);
ista = ReadW6692(card, W_ISTA);
if ((ista | card->imask) == card->imask) {
/* possible a shared IRQ reqest */
spin_unlock(&card->lock);
return IRQ_NONE;
}
card->irqcnt++;
pr_debug("%s: ista %02x\n", card->name, ista);
ista &= ~card->imask;
if (ista & W_INT_B1_EXI)
W6692B_interrupt(card, 0);
if (ista & W_INT_B2_EXI)
W6692B_interrupt(card, 1);
if (ista & W_INT_D_RME)
handle_rxD(card);
if (ista & W_INT_D_RMR)
W6692_empty_Dfifo(card, W_D_FIFO_THRESH);
if (ista & W_INT_D_XFR)
handle_txD(card);
if (ista & W_INT_D_EXI)
handle_statusD(card);
if (ista & (W_INT_XINT0 | W_INT_XINT1)) /* XINT0/1 - never */
pr_debug("%s: W6692 spurious XINT!\n", card->name);
/* End IRQ Handler */
spin_unlock(&card->lock);
return IRQ_HANDLED;
}
static void
dbusy_timer_handler(struct dchannel *dch)
{
struct w6692_hw *card = dch->hw;
int rbch, star;
u_long flags;
if (test_bit(FLG_BUSY_TIMER, &dch->Flags)) {
spin_lock_irqsave(&card->lock, flags);
rbch = ReadW6692(card, W_D_RBCH);
star = ReadW6692(card, W_D_STAR);
pr_debug("%s: D-Channel Busy RBCH %02x STAR %02x\n",
card->name, rbch, star);
if (star & W_D_STAR_XBZ) /* D-Channel Busy */
test_and_set_bit(FLG_L1_BUSY, &dch->Flags);
else {
/* discard frame; reset transceiver */
test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags);
if (dch->tx_idx)
dch->tx_idx = 0;
else
pr_info("%s: W6692 D-Channel Busy no tx_idx\n",
card->name);
/* Transmitter reset */
WriteW6692(card, W_D_CMDR, W_D_CMDR_XRST);
}
spin_unlock_irqrestore(&card->lock, flags);
}
}
void initW6692(struct w6692_hw *card)
{
u8 val;
card->dch.timer.function = (void *)dbusy_timer_handler;
card->dch.timer.data = (u_long)&card->dch;
init_timer(&card->dch.timer);
w6692_mode(&card->bc[0], ISDN_P_NONE);
w6692_mode(&card->bc[1], ISDN_P_NONE);
WriteW6692(card, W_D_CTL, 0x00);
disable_hwirq(card);
WriteW6692(card, W_D_SAM, 0xff);
WriteW6692(card, W_D_TAM, 0xff);
WriteW6692(card, W_D_MODE, W_D_MODE_RACT);
card->state = W_L1CMD_RST;
ph_command(card, W_L1CMD_RST);
ph_command(card, W_L1CMD_ECK);
/* enable all IRQ but extern */
card->imask = 0x18;
WriteW6692(card, W_D_EXIM, 0x00);
WriteW6692B(&card->bc[0], W_B_EXIM, 0);
WriteW6692B(&card->bc[1], W_B_EXIM, 0);
/* Reset D-chan receiver and transmitter */
WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST);
/* Reset B-chan receiver and transmitter */
WriteW6692B(&card->bc[0], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
WriteW6692B(&card->bc[1], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
/* enable peripheral */
if (card->subtype == W6692_USR) {
/* seems that USR implemented some power control features
* Pin 79 is connected to the oscilator circuit so we
* have to handle it here
*/
card->pctl = 0x80;
card->xdata = 0;
WriteW6692(card, W_PCTL, card->pctl);
WriteW6692(card, W_XDATA, card->xdata);
} else {
card->pctl = W_PCTL_OE5 | W_PCTL_OE4 | W_PCTL_OE2 |
W_PCTL_OE1 | W_PCTL_OE0;
card->xaddr = 0x00;/* all sw off */
if (card->fmask & pots)
card->xdata |= 0x06; /* POWER UP/ LED OFF / ALAW */
if (card->fmask & led)
card->xdata |= 0x04; /* LED OFF */
if ((card->fmask & pots) || (card->fmask & led)) {
WriteW6692(card, W_PCTL, card->pctl);
WriteW6692(card, W_XADDR, card->xaddr);
WriteW6692(card, W_XDATA, card->xdata);
val = ReadW6692(card, W_XADDR);
if (debug & DEBUG_HW)
pr_notice("%s: W_XADDR=%02x\n",
card->name, val);
}
}
}
static void
reset_w6692(struct w6692_hw *card)
{
WriteW6692(card, W_D_CTL, W_D_CTL_SRST);
mdelay(10);
WriteW6692(card, W_D_CTL, 0);
}
static int
init_card(struct w6692_hw *card)
{
int cnt = 3;
u_long flags;
spin_lock_irqsave(&card->lock, flags);
disable_hwirq(card);
spin_unlock_irqrestore(&card->lock, flags);
if (request_irq(card->irq, w6692_irq, IRQF_SHARED, card->name, card)) {
pr_info("%s: couldn't get interrupt %d\n", card->name,
card->irq);
return -EIO;
}
while (cnt--) {
spin_lock_irqsave(&card->lock, flags);
initW6692(card);
enable_hwirq(card);
spin_unlock_irqrestore(&card->lock, flags);
/* Timeout 10ms */
msleep_interruptible(10);
if (debug & DEBUG_HW)
pr_notice("%s: IRQ %d count %d\n", card->name,
card->irq, card->irqcnt);
if (!card->irqcnt) {
pr_info("%s: IRQ(%d) getting no IRQs during init %d\n",
card->name, card->irq, 3 - cnt);
reset_w6692(card);
} else
return 0;
}
free_irq(card->irq, card);
return -EIO;
}
static int
w6692_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
{
struct bchannel *bch = container_of(ch, struct bchannel, ch);
struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch);
struct w6692_hw *card = bch->hw;
int ret = -EINVAL;
struct mISDNhead *hh = mISDN_HEAD_P(skb);
u32 id;
u_long flags;
switch (hh->prim) {
case PH_DATA_REQ:
spin_lock_irqsave(&card->lock, flags);
ret = bchannel_senddata(bch, skb);
if (ret > 0) { /* direct TX */
id = hh->id; /* skb can be freed */
ret = 0;
W6692_fill_Bfifo(bc);
spin_unlock_irqrestore(&card->lock, flags);
if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
} else
spin_unlock_irqrestore(&card->lock, flags);
return ret;
case PH_ACTIVATE_REQ:
spin_lock_irqsave(&card->lock, flags);
if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
ret = w6692_mode(bc, ch->protocol);
else
ret = 0;
spin_unlock_irqrestore(&card->lock, flags);
if (!ret)
_queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
NULL, GFP_KERNEL);
break;
case PH_DEACTIVATE_REQ:
spin_lock_irqsave(&card->lock, flags);
mISDN_clear_bchannel(bch);
w6692_mode(bc, ISDN_P_NONE);
spin_unlock_irqrestore(&card->lock, flags);
_queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
NULL, GFP_KERNEL);
ret = 0;
break;
default:
pr_info("%s: %s unknown prim(%x,%x)\n",
card->name, __func__, hh->prim, hh->id);
ret = -EINVAL;
}
if (!ret)
dev_kfree_skb(skb);
return ret;
}
static int
channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
{
int ret = 0;
switch (cq->op) {
case MISDN_CTRL_GETOP:
cq->op = 0;
break;
/* Nothing implemented yet */
case MISDN_CTRL_FILL_EMPTY:
default:
pr_info("%s: unknown Op %x\n", __func__, cq->op);
ret = -EINVAL;
break;
}
return ret;
}
static int
open_bchannel(struct w6692_hw *card, struct channel_req *rq)
{
struct bchannel *bch;
if (rq->adr.channel > 2)
return -EINVAL;
if (rq->protocol == ISDN_P_NONE)
return -EINVAL;
bch = &card->bc[rq->adr.channel - 1].bch;
if (test_and_set_bit(FLG_OPEN, &bch->Flags))
return -EBUSY; /* b-channel can be only open once */
test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags);
bch->ch.protocol = rq->protocol;
rq->ch = &bch->ch;
return 0;
}
static int
channel_ctrl(struct w6692_hw *card, struct mISDN_ctrl_req *cq)
{
int ret = 0;
switch (cq->op) {
case MISDN_CTRL_GETOP:
cq->op = 0;
break;
default:
pr_info("%s: unknown CTRL OP %x\n", card->name, cq->op);
ret = -EINVAL;
break;
}
return ret;
}
static int
w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
{
struct bchannel *bch = container_of(ch, struct bchannel, ch);
struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch);
struct w6692_hw *card = bch->hw;
int ret = -EINVAL;
u_long flags;
pr_debug("%s: %s cmd:%x %p\n", card->name, __func__, cmd, arg);
switch (cmd) {
case CLOSE_CHANNEL:
test_and_clear_bit(FLG_OPEN, &bch->Flags);
if (test_bit(FLG_ACTIVE, &bch->Flags)) {
spin_lock_irqsave(&card->lock, flags);
mISDN_freebchannel(bch);
w6692_mode(bc, ISDN_P_NONE);
spin_unlock_irqrestore(&card->lock, flags);
} else {
skb_queue_purge(&bch->rqueue);
bch->rcount = 0;
}
ch->protocol = ISDN_P_NONE;
ch->peer = NULL;
module_put(THIS_MODULE);
ret = 0;
break;
case CONTROL_CHANNEL:
ret = channel_bctrl(bch, arg);
break;
default:
pr_info("%s: %s unknown prim(%x)\n",
card->name, __func__, cmd);
}
return ret;
}
static int
w6692_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
{
struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
struct dchannel *dch = container_of(dev, struct dchannel, dev);
struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
int ret = -EINVAL;
struct mISDNhead *hh = mISDN_HEAD_P(skb);
u32 id;
u_long flags;
switch (hh->prim) {
case PH_DATA_REQ:
spin_lock_irqsave(&card->lock, flags);
ret = dchannel_senddata(dch, skb);
if (ret > 0) { /* direct TX */
id = hh->id; /* skb can be freed */
W6692_fill_Dfifo(card);
ret = 0;
spin_unlock_irqrestore(&card->lock, flags);
queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
} else
spin_unlock_irqrestore(&card->lock, flags);
return ret;
case PH_ACTIVATE_REQ:
ret = l1_event(dch->l1, hh->prim);
break;
case PH_DEACTIVATE_REQ:
test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
ret = l1_event(dch->l1, hh->prim);
break;
}
if (!ret)
dev_kfree_skb(skb);
return ret;
}
static int
w6692_l1callback(struct dchannel *dch, u32 cmd)
{
struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
u_long flags;
pr_debug("%s: cmd(%x) state(%02x)\n", card->name, cmd, card->state);
switch (cmd) {
case INFO3_P8:
spin_lock_irqsave(&card->lock, flags);
ph_command(card, W_L1CMD_AR8);
spin_unlock_irqrestore(&card->lock, flags);
break;
case INFO3_P10:
spin_lock_irqsave(&card->lock, flags);
ph_command(card, W_L1CMD_AR10);
spin_unlock_irqrestore(&card->lock, flags);
break;
case HW_RESET_REQ:
spin_lock_irqsave(&card->lock, flags);
if (card->state != W_L1IND_DRD)
ph_command(card, W_L1CMD_RST);
ph_command(card, W_L1CMD_ECK);
spin_unlock_irqrestore(&card->lock, flags);
break;
case HW_DEACT_REQ:
skb_queue_purge(&dch->squeue);
if (dch->tx_skb) {
dev_kfree_skb(dch->tx_skb);
dch->tx_skb = NULL;
}
dch->tx_idx = 0;
if (dch->rx_skb) {
dev_kfree_skb(dch->rx_skb);
dch->rx_skb = NULL;
}
test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
del_timer(&dch->timer);
break;
case HW_POWERUP_REQ:
spin_lock_irqsave(&card->lock, flags);
ph_command(card, W_L1CMD_ECK);
spin_unlock_irqrestore(&card->lock, flags);
break;
case PH_ACTIVATE_IND:
test_and_set_bit(FLG_ACTIVE, &dch->Flags);
_queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
GFP_ATOMIC);
break;
case PH_DEACTIVATE_IND:
test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
_queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
GFP_ATOMIC);
break;
default:
pr_debug("%s: %s unknown command %x\n", card->name,
__func__, cmd);
return -1;
}
return 0;
}
static int
open_dchannel(struct w6692_hw *card, struct channel_req *rq)
{
pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__,
card->dch.dev.id, __builtin_return_address(1));
if (rq->protocol != ISDN_P_TE_S0)
return -EINVAL;
if (rq->adr.channel == 1)
/* E-Channel not supported */
return -EINVAL;
rq->ch = &card->dch.dev.D;
rq->ch->protocol = rq->protocol;
if (card->dch.state == 7)
_queue_data(rq->ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
0, NULL, GFP_KERNEL);
return 0;
}
static int
w6692_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
{
struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
struct dchannel *dch = container_of(dev, struct dchannel, dev);
struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
struct channel_req *rq;
int err = 0;
pr_debug("%s: DCTRL: %x %p\n", card->name, cmd, arg);
switch (cmd) {
case OPEN_CHANNEL:
rq = arg;
if (rq->protocol == ISDN_P_TE_S0)
err = open_dchannel(card, rq);
else
err = open_bchannel(card, rq);
if (err)
break;
if (!try_module_get(THIS_MODULE))
pr_info("%s: cannot get module\n", card->name);
break;
case CLOSE_CHANNEL:
pr_debug("%s: dev(%d) close from %p\n", card->name,
dch->dev.id, __builtin_return_address(0));
module_put(THIS_MODULE);
break;
case CONTROL_CHANNEL:
err = channel_ctrl(card, arg);
break;
default:
pr_debug("%s: unknown DCTRL command %x\n", card->name, cmd);
return -EINVAL;
}
return err;
}
static int
setup_w6692(struct w6692_hw *card)
{
u32 val;
if (!request_region(card->addr, 256, card->name)) {
pr_info("%s: config port %x-%x already in use\n", card->name,
card->addr, card->addr + 255);
return -EIO;
}
W6692Version(card);
card->bc[0].addr = card->addr;
card->bc[1].addr = card->addr + 0x40;
val = ReadW6692(card, W_ISTA);
if (debug & DEBUG_HW)
pr_notice("%s ISTA=%02x\n", card->name, val);
val = ReadW6692(card, W_IMASK);
if (debug & DEBUG_HW)
pr_notice("%s IMASK=%02x\n", card->name, val);
val = ReadW6692(card, W_D_EXIR);
if (debug & DEBUG_HW)
pr_notice("%s D_EXIR=%02x\n", card->name, val);
val = ReadW6692(card, W_D_EXIM);
if (debug & DEBUG_HW)
pr_notice("%s D_EXIM=%02x\n", card->name, val);
val = ReadW6692(card, W_D_RSTA);
if (debug & DEBUG_HW)
pr_notice("%s D_RSTA=%02x\n", card->name, val);
return 0;
}
static void
release_card(struct w6692_hw *card)
{
u_long flags;
spin_lock_irqsave(&card->lock, flags);
disable_hwirq(card);
w6692_mode(&card->bc[0], ISDN_P_NONE);
w6692_mode(&card->bc[1], ISDN_P_NONE);
if ((card->fmask & led) || card->subtype == W6692_USR) {
card->xdata |= 0x04; /* LED OFF */
WriteW6692(card, W_XDATA, card->xdata);
}
spin_unlock_irqrestore(&card->lock, flags);
free_irq(card->irq, card);
l1_event(card->dch.l1, CLOSE_CHANNEL);
mISDN_unregister_device(&card->dch.dev);
release_region(card->addr, 256);
mISDN_freebchannel(&card->bc[1].bch);
mISDN_freebchannel(&card->bc[0].bch);
mISDN_freedchannel(&card->dch);
write_lock_irqsave(&card_lock, flags);
list_del(&card->list);
write_unlock_irqrestore(&card_lock, flags);
pci_disable_device(card->pdev);
pci_set_drvdata(card->pdev, NULL);
kfree(card);
}
static int
setup_instance(struct w6692_hw *card)
{
int i, err;
u_long flags;
snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1);
write_lock_irqsave(&card_lock, flags);
list_add_tail(&card->list, &Cards);
write_unlock_irqrestore(&card_lock, flags);
card->fmask = (1 << w6692_cnt);
_set_debug(card);
spin_lock_init(&card->lock);
mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh);
card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0);
card->dch.dev.D.send = w6692_l2l1D;
card->dch.dev.D.ctrl = w6692_dctrl;
card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
(1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
card->dch.hw = card;
card->dch.dev.nrbchan = 2;
for (i = 0; i < 2; i++) {
mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM);
card->bc[i].bch.hw = card;
card->bc[i].bch.nr = i + 1;
card->bc[i].bch.ch.nr = i + 1;
card->bc[i].bch.ch.send = w6692_l2l1B;
card->bc[i].bch.ch.ctrl = w6692_bctrl;
set_channelmap(i + 1, card->dch.dev.channelmap);
list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels);
}
err = setup_w6692(card);
if (err)
goto error_setup;
err = mISDN_register_device(&card->dch.dev, &card->pdev->dev,
card->name);
if (err)
goto error_reg;
err = init_card(card);
if (err)
goto error_init;
err = create_l1(&card->dch, w6692_l1callback);
if (!err) {
w6692_cnt++;
pr_notice("W6692 %d cards installed\n", w6692_cnt);
return 0;
}
free_irq(card->irq, card);
error_init:
mISDN_unregister_device(&card->dch.dev);
error_reg:
release_region(card->addr, 256);
error_setup:
mISDN_freebchannel(&card->bc[1].bch);
mISDN_freebchannel(&card->bc[0].bch);
mISDN_freedchannel(&card->dch);
write_lock_irqsave(&card_lock, flags);
list_del(&card->list);
write_unlock_irqrestore(&card_lock, flags);
kfree(card);
return err;
}
static int __devinit
w6692_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int err = -ENOMEM;
struct w6692_hw *card;
struct w6692map *m = (struct w6692map *)ent->driver_data;
card = kzalloc(sizeof(struct w6692_hw), GFP_KERNEL);
if (!card) {
pr_info("No kmem for w6692 card\n");
return err;
}
card->pdev = pdev;
card->subtype = m->subtype;
err = pci_enable_device(pdev);
if (err) {
kfree(card);
return err;
}
printk(KERN_INFO "mISDN_w6692: found adapter %s at %s\n",
m->name, pci_name(pdev));
card->addr = pci_resource_start(pdev, 1);
card->irq = pdev->irq;
pci_set_drvdata(pdev, card);
err = setup_instance(card);
if (err)
pci_set_drvdata(pdev, NULL);
return err;
}
static void __devexit
w6692_remove_pci(struct pci_dev *pdev)
{
struct w6692_hw *card = pci_get_drvdata(pdev);
if (card)
release_card(card);
else
if (debug)
pr_notice("%s: drvdata allready removed\n", __func__);
}
static struct pci_device_id w6692_ids[] = {
{ PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]},
{ PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
PCI_VENDOR_ID_USR, PCI_DEVICE_ID_USR_6692, 0, 0,
(ulong)&w6692_map[2]},
{ PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[1]},
{ }
};
MODULE_DEVICE_TABLE(pci, w6692_ids);
static struct pci_driver w6692_driver = {
.name = "w6692",
.probe = w6692_probe,
.remove = __devexit_p(w6692_remove_pci),
.id_table = w6692_ids,
};
static int __init w6692_init(void)
{
int err;
pr_notice("Winbond W6692 PCI driver Rev. %s\n", W6692_REV);
err = pci_register_driver(&w6692_driver);
return err;
}
static void __exit w6692_cleanup(void)
{
pci_unregister_driver(&w6692_driver);
}
module_init(w6692_init);
module_exit(w6692_cleanup);
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