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linux_dsm_epyc7002/drivers/isdn/hardware/mISDN/w6692.c
Arnd Bergmann 3e7a8716e2 mISDN: avoid arch specific __builtin_return_address call 
Not all architectures are able to call __builtin_return_address().
On ARM, the mISDN code produces this warning:

hardware/mISDN/w6692.c: In function 'w6692_dctrl':
hardware/mISDN/w6692.c:1181:75: warning: unsupported argument to '__builtin_return_address'
  pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__,
                                                                           ^
hardware/mISDN/mISDNipac.c: In function 'open_dchannel':
hardware/mISDN/mISDNipac.c:759:75: warning: unsupported argument to '__builtin_return_address'
  pr_debug("%s: %s dev(%d) open from %p\n", isac->name, __func__,
                                                                           ^

In a lot of cases, this is relatively easy to work around by
passing the value of __builtin_return_address(0) from the
callers into the functions that want it. One exception is
the indirect 'open' function call in struct isac_hw. While it
would be possible to fix this as well, this patch only addresses
the other callers properly and lets this one return the direct
parent function, which should be good enough.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-13 17:08:21 -05:00

1438 lines
36 KiB
C
Raw Blame History

/*
* 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/interrupt.h>
#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;
int maxlen;
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 (test_bit(FLG_RX_OFF, &wch->bch.Flags)) {
wch->bch.dropcnt += count;
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
return;
}
maxlen = bchannel_get_rxbuf(&wch->bch, count);
if (maxlen < 0) {
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);
pr_warning("%s.B%d: No bufferspace for %d bytes\n",
card->name, wch->bch.nr, count);
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, fillempty = 0;
u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS;
pr_debug("%s: fill Bfifo\n", card->name);
if (!wch->bch.tx_skb) {
if (!test_bit(FLG_TX_EMPTY, &wch->bch.Flags))
return;
ptr = wch->bch.fill;
count = W_B_FIFO_THRESH;
fillempty = 1;
} else {
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;
if (fillempty) {
while (count > 0) {
outsb(wch->addr + W_B_XFIFO, ptr, MISDN_BCH_FILL_SIZE);
count -= MISDN_BCH_FILL_SIZE;
}
} else {
outsb(wch->addr + W_B_XFIFO, ptr, count);
}
WriteW6692B(wch, W_B_CMDR, cmd);
if ((debug & DEBUG_HW_BFIFO) && !fillempty) {
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)
dev_kfree_skb(wch->bch.tx_skb);
if (get_next_bframe(&wch->bch)) {
W6692_fill_Bfifo(wch);
test_and_clear_bit(FLG_TX_EMPTY, &wch->bch.Flags);
} else if (test_bit(FLG_TX_EMPTY, &wch->bch.Flags)) {
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, false);
}
}
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))
recv_Bchannel(&wch->bch, 0, false);
}
}
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_warning("%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 (star & W_B_STAR_XDOW)
return; /* handle XDOW only once */
}
if (stat & W_B_EXI_XDUN) {
pr_warning("%s: B%d XDUN proto=%x\n", card->name,
wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_xdu++;
#endif
/* resend - no XRST needed */
if (wch->bch.tx_skb) {
if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
wch->bch.tx_idx = 0;
} else if (test_bit(FLG_FILLEMPTY, &wch->bch.Flags)) {
test_and_set_bit(FLG_TX_EMPTY, &wch->bch.Flags);
}
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);
unsigned 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 */
ret = 0;
W6692_fill_Bfifo(bc);
}
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)
{
return mISDN_ctrl_bchannel(bch, cq);
}
static int
open_bchannel(struct w6692_hw *card, struct channel_req *rq)
{
struct bchannel *bch;
if (rq->adr.channel == 0 || 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 */
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 = MISDN_CTRL_L1_TIMER3;
break;
case MISDN_CTRL_L1_TIMER3:
ret = l1_event(card->dch.l1, HW_TIMER3_VALUE | (cq->p1 & 0xff));
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);
cancel_work_sync(&bch->workq);
spin_lock_irqsave(&card->lock, flags);
mISDN_clear_bchannel(bch);
w6692_mode(bc, ISDN_P_NONE);
spin_unlock_irqrestore(&card->lock, flags);
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, void *caller)
{
pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__,
card->dch.dev.id, caller);
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, __builtin_return_address(0));
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,
W_B_FIFO_THRESH);
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
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
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 already 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 = 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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