mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 14:36:46 +07:00
203d2027a1
The pnp_irq() function returns -1 if an error occurs. pnp_irq() error checking for zero is not correct. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
317 lines
8.1 KiB
C
317 lines
8.1 KiB
C
/* $Id: ix1_micro.c,v 2.12.2.4 2004/01/13 23:48:39 keil Exp $
|
|
*
|
|
* low level stuff for ITK ix1-micro Rev.2 isdn cards
|
|
* derived from the original file teles3.c from Karsten Keil
|
|
*
|
|
* Author Klaus-Peter Nischke
|
|
* Copyright by Klaus-Peter Nischke, ITK AG
|
|
* <klaus@nischke.do.eunet.de>
|
|
* 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.
|
|
*
|
|
* Klaus-Peter Nischke
|
|
* Deusener Str. 287
|
|
* 44369 Dortmund
|
|
* Germany
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/isapnp.h>
|
|
#include "hisax.h"
|
|
#include "isac.h"
|
|
#include "hscx.h"
|
|
#include "isdnl1.h"
|
|
|
|
static const char *ix1_revision = "$Revision: 2.12.2.4 $";
|
|
|
|
#define byteout(addr, val) outb(val, addr)
|
|
#define bytein(addr) inb(addr)
|
|
|
|
#define SPECIAL_PORT_OFFSET 3
|
|
|
|
#define ISAC_COMMAND_OFFSET 2
|
|
#define ISAC_DATA_OFFSET 0
|
|
#define HSCX_COMMAND_OFFSET 2
|
|
#define HSCX_DATA_OFFSET 1
|
|
|
|
#define TIMEOUT 50
|
|
|
|
static inline u_char
|
|
readreg(unsigned int ale, unsigned int adr, u_char off)
|
|
{
|
|
register u_char ret;
|
|
|
|
byteout(ale, off);
|
|
ret = bytein(adr);
|
|
return (ret);
|
|
}
|
|
|
|
static inline void
|
|
readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
|
|
{
|
|
byteout(ale, off);
|
|
insb(adr, data, size);
|
|
}
|
|
|
|
|
|
static inline void
|
|
writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
|
|
{
|
|
byteout(ale, off);
|
|
byteout(adr, data);
|
|
}
|
|
|
|
static inline void
|
|
writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
|
|
{
|
|
byteout(ale, off);
|
|
outsb(adr, data, size);
|
|
}
|
|
|
|
/* Interface functions */
|
|
|
|
static u_char
|
|
ReadISAC(struct IsdnCardState *cs, u_char offset)
|
|
{
|
|
return (readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset));
|
|
}
|
|
|
|
static void
|
|
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
|
|
{
|
|
writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset, value);
|
|
}
|
|
|
|
static void
|
|
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
|
|
{
|
|
readfifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size);
|
|
}
|
|
|
|
static void
|
|
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
|
|
{
|
|
writefifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size);
|
|
}
|
|
|
|
static u_char
|
|
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
|
|
{
|
|
return (readreg(cs->hw.ix1.hscx_ale,
|
|
cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0)));
|
|
}
|
|
|
|
static void
|
|
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
|
|
{
|
|
writereg(cs->hw.ix1.hscx_ale,
|
|
cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0), value);
|
|
}
|
|
|
|
#define READHSCX(cs, nr, reg) readreg(cs->hw.ix1.hscx_ale, \
|
|
cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0))
|
|
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.ix1.hscx_ale, \
|
|
cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0), data)
|
|
|
|
#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.ix1.hscx_ale, \
|
|
cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt)
|
|
|
|
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.ix1.hscx_ale, \
|
|
cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt)
|
|
|
|
#include "hscx_irq.c"
|
|
|
|
static irqreturn_t
|
|
ix1micro_interrupt(int intno, void *dev_id)
|
|
{
|
|
struct IsdnCardState *cs = dev_id;
|
|
u_char val;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40);
|
|
Start_HSCX:
|
|
if (val)
|
|
hscx_int_main(cs, val);
|
|
val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA);
|
|
Start_ISAC:
|
|
if (val)
|
|
isac_interrupt(cs, val);
|
|
val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40);
|
|
if (val) {
|
|
if (cs->debug & L1_DEB_HSCX)
|
|
debugl1(cs, "HSCX IntStat after IntRoutine");
|
|
goto Start_HSCX;
|
|
}
|
|
val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA);
|
|
if (val) {
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "ISAC IntStat after IntRoutine");
|
|
goto Start_ISAC;
|
|
}
|
|
writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0xFF);
|
|
writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0xFF);
|
|
writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0xFF);
|
|
writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0);
|
|
writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0);
|
|
writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void
|
|
release_io_ix1micro(struct IsdnCardState *cs)
|
|
{
|
|
if (cs->hw.ix1.cfg_reg)
|
|
release_region(cs->hw.ix1.cfg_reg, 4);
|
|
}
|
|
|
|
static void
|
|
ix1_reset(struct IsdnCardState *cs)
|
|
{
|
|
int cnt;
|
|
|
|
/* reset isac */
|
|
cnt = 3 * (HZ / 10) + 1;
|
|
while (cnt--) {
|
|
byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 1);
|
|
HZDELAY(1); /* wait >=10 ms */
|
|
}
|
|
byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 0);
|
|
}
|
|
|
|
static int
|
|
ix1_card_msg(struct IsdnCardState *cs, int mt, void *arg)
|
|
{
|
|
u_long flags;
|
|
|
|
switch (mt) {
|
|
case CARD_RESET:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
ix1_reset(cs);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return (0);
|
|
case CARD_RELEASE:
|
|
release_io_ix1micro(cs);
|
|
return (0);
|
|
case CARD_INIT:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
ix1_reset(cs);
|
|
inithscxisac(cs, 3);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return (0);
|
|
case CARD_TEST:
|
|
return (0);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
#ifdef __ISAPNP__
|
|
static struct isapnp_device_id itk_ids[] = {
|
|
{ ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25),
|
|
ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25),
|
|
(unsigned long) "ITK micro 2" },
|
|
{ ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29),
|
|
ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29),
|
|
(unsigned long) "ITK micro 2." },
|
|
{ 0, }
|
|
};
|
|
|
|
static struct isapnp_device_id *ipid = &itk_ids[0];
|
|
static struct pnp_card *pnp_c = NULL;
|
|
#endif
|
|
|
|
|
|
int setup_ix1micro(struct IsdnCard *card)
|
|
{
|
|
struct IsdnCardState *cs = card->cs;
|
|
char tmp[64];
|
|
|
|
strcpy(tmp, ix1_revision);
|
|
printk(KERN_INFO "HiSax: ITK IX1 driver Rev. %s\n", HiSax_getrev(tmp));
|
|
if (cs->typ != ISDN_CTYPE_IX1MICROR2)
|
|
return (0);
|
|
|
|
#ifdef __ISAPNP__
|
|
if (!card->para[1] && isapnp_present()) {
|
|
struct pnp_dev *pnp_d;
|
|
while (ipid->card_vendor) {
|
|
if ((pnp_c = pnp_find_card(ipid->card_vendor,
|
|
ipid->card_device, pnp_c))) {
|
|
pnp_d = NULL;
|
|
if ((pnp_d = pnp_find_dev(pnp_c,
|
|
ipid->vendor, ipid->function, pnp_d))) {
|
|
int err;
|
|
|
|
printk(KERN_INFO "HiSax: %s detected\n",
|
|
(char *)ipid->driver_data);
|
|
pnp_disable_dev(pnp_d);
|
|
err = pnp_activate_dev(pnp_d);
|
|
if (err < 0) {
|
|
printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
|
|
__func__, err);
|
|
return (0);
|
|
}
|
|
card->para[1] = pnp_port_start(pnp_d, 0);
|
|
card->para[0] = pnp_irq(pnp_d, 0);
|
|
if (card->para[0] == -1 || !card->para[1]) {
|
|
printk(KERN_ERR "ITK PnP:some resources are missing %ld/%lx\n",
|
|
card->para[0], card->para[1]);
|
|
pnp_disable_dev(pnp_d);
|
|
return (0);
|
|
}
|
|
break;
|
|
} else {
|
|
printk(KERN_ERR "ITK PnP: PnP error card found, no device\n");
|
|
}
|
|
}
|
|
ipid++;
|
|
pnp_c = NULL;
|
|
}
|
|
if (!ipid->card_vendor) {
|
|
printk(KERN_INFO "ITK PnP: no ISAPnP card found\n");
|
|
return (0);
|
|
}
|
|
}
|
|
#endif
|
|
/* IO-Ports */
|
|
cs->hw.ix1.isac_ale = card->para[1] + ISAC_COMMAND_OFFSET;
|
|
cs->hw.ix1.hscx_ale = card->para[1] + HSCX_COMMAND_OFFSET;
|
|
cs->hw.ix1.isac = card->para[1] + ISAC_DATA_OFFSET;
|
|
cs->hw.ix1.hscx = card->para[1] + HSCX_DATA_OFFSET;
|
|
cs->hw.ix1.cfg_reg = card->para[1];
|
|
cs->irq = card->para[0];
|
|
if (cs->hw.ix1.cfg_reg) {
|
|
if (!request_region(cs->hw.ix1.cfg_reg, 4, "ix1micro cfg")) {
|
|
printk(KERN_WARNING
|
|
"HiSax: ITK ix1-micro Rev.2 config port "
|
|
"%x-%x already in use\n",
|
|
cs->hw.ix1.cfg_reg,
|
|
cs->hw.ix1.cfg_reg + 4);
|
|
return (0);
|
|
}
|
|
}
|
|
printk(KERN_INFO "HiSax: ITK ix1-micro Rev.2 config irq:%d io:0x%X\n",
|
|
cs->irq, cs->hw.ix1.cfg_reg);
|
|
setup_isac(cs);
|
|
cs->readisac = &ReadISAC;
|
|
cs->writeisac = &WriteISAC;
|
|
cs->readisacfifo = &ReadISACfifo;
|
|
cs->writeisacfifo = &WriteISACfifo;
|
|
cs->BC_Read_Reg = &ReadHSCX;
|
|
cs->BC_Write_Reg = &WriteHSCX;
|
|
cs->BC_Send_Data = &hscx_fill_fifo;
|
|
cs->cardmsg = &ix1_card_msg;
|
|
cs->irq_func = &ix1micro_interrupt;
|
|
ISACVersion(cs, "ix1-Micro:");
|
|
if (HscxVersion(cs, "ix1-Micro:")) {
|
|
printk(KERN_WARNING
|
|
"ix1-Micro: wrong HSCX versions check IO address\n");
|
|
release_io_ix1micro(cs);
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|