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linux/drivers/isdn/hisax/hfcscard.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* $Id: hfcscard.c,v 1.10.2.4 2004/01/14 16:04:48 keil Exp $
*
* low level stuff for hfcs based cards (Teles3c, ACER P10)
*
* 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.
*
*/
#include <linux/init.h>
#include <linux/isapnp.h>
#include "hisax.h"
#include "hfc_2bds0.h"
#include "isdnl1.h"
extern const char *CardType[];
static const char *hfcs_revision = "$Revision: 1.10.2.4 $";
static irqreturn_t
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
hfcs_interrupt(int intno, void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct IsdnCardState *cs = dev_id;
u_char val, stat;
u_long flags;
spin_lock_irqsave(&cs->lock, flags);
if ((HFCD_ANYINT | HFCD_BUSY_NBUSY) &
(stat = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_STAT))) {
val = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_INT_S1);
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "HFCS: stat(%02x) s1(%02x)", stat, val);
hfc2bds0_interrupt(cs, val);
} else {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "HFCS: irq_no_irq stat(%02x)", stat);
}
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
hfcs_Timer(struct IsdnCardState *cs)
{
cs->hw.hfcD.timer.expires = jiffies + 75;
/* WD RESET */
/* WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt | 0x80);
add_timer(&cs->hw.hfcD.timer);
*/
}
[PATCH] drivers/isdn/hisax/: possible cleanups This patch contains the following possible cleanups: - make needlessly global code static - remove the compiled but unused st5481_hdlc.{c,h} - kill enternow.h - enternow_pci.c: kill InByte/OutByte/BYTE - isdnl2.c: kill FreeSkb - remove or #if 0 the following unused functions: - config.c: IsdnCardState - ipacx.c: ipacx_new_ph - ipacx.c: dch_bh - ipacx.c: setup_ipacx - isdnl2.c: IsRR Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Kai Germaschewski <kai@germaschewski.name> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-26 05:59:18 +08:00
static void
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
release_io_hfcs(struct IsdnCardState *cs)
{
release2bds0(cs);
del_timer(&cs->hw.hfcD.timer);
if (cs->hw.hfcD.addr)
release_region(cs->hw.hfcD.addr, 2);
}
static void
reset_hfcs(struct IsdnCardState *cs)
{
printk(KERN_INFO "HFCS: resetting card\n");
cs->hw.hfcD.cirm = HFCD_RESET;
if (cs->typ == ISDN_CTYPE_TELES3C)
cs->hw.hfcD.cirm |= HFCD_MEM8K;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm); /* Reset On */
mdelay(10);
cs->hw.hfcD.cirm = 0;
if (cs->typ == ISDN_CTYPE_TELES3C)
cs->hw.hfcD.cirm |= HFCD_MEM8K;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm); /* Reset Off */
mdelay(10);
if (cs->typ == ISDN_CTYPE_TELES3C)
cs->hw.hfcD.cirm |= HFCD_INTB;
else if (cs->typ == ISDN_CTYPE_ACERP10)
cs->hw.hfcD.cirm |= HFCD_INTA;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CLKDEL, 0x0e);
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_TEST, HFCD_AUTO_AWAKE); /* S/T Auto awake */
cs->hw.hfcD.ctmt = HFCD_TIM25 | HFCD_AUTO_TIMER;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
cs->hw.hfcD.int_m2 = HFCD_IRQ_ENABLE;
cs->hw.hfcD.int_m1 = HFCD_INTS_B1TRANS | HFCD_INTS_B2TRANS |
HFCD_INTS_DTRANS | HFCD_INTS_B1REC | HFCD_INTS_B2REC |
HFCD_INTS_DREC | HFCD_INTS_L1STATE;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M1, cs->hw.hfcD.int_m1);
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M2, cs->hw.hfcD.int_m2);
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, HFCD_LOAD_STATE | 2); /* HFC ST 2 */
udelay(10);
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, 2); /* HFC ST 2 */
cs->hw.hfcD.mst_m = HFCD_MASTER;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m); /* HFC Master */
cs->hw.hfcD.sctrl = 0;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_SCTRL, cs->hw.hfcD.sctrl);
}
static int
hfcs_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
int delay;
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "HFCS: card_msg %x", mt);
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
reset_hfcs(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_RELEASE:
release_io_hfcs(cs);
return(0);
case CARD_INIT:
delay = (75*HZ)/100 +1;
cs->hw.hfcD.timer.expires = jiffies + delay;
add_timer(&cs->hw.hfcD.timer);
spin_lock_irqsave(&cs->lock, flags);
reset_hfcs(cs);
init2bds0(cs);
spin_unlock_irqrestore(&cs->lock, flags);
delay = (80*HZ)/1000 +1;
msleep(80);
spin_lock_irqsave(&cs->lock, flags);
cs->hw.hfcD.ctmt |= HFCD_TIM800;
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_TEST:
return(0);
}
return(0);
}
#ifdef __ISAPNP__
[PATCH] hisax: fix usage of __init* Fix the warnings about the section mismatches for __init* in the HiSax driver. Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 19:44:11 +08:00
static struct isapnp_device_id hfc_ids[] __devinitdata = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{ ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
(unsigned long) "Acer P10" },
{ ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
(unsigned long) "Billion 2" },
{ ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
(unsigned long) "Billion 1" },
{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
(unsigned long) "IStar PnP" },
{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
(unsigned long) "Teles 16.3c" },
{ ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
(unsigned long) "Tornado Tipa C" },
{ ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
(unsigned long) "Genius Speed Surfer" },
{ 0, }
};
[PATCH] hisax: fix usage of __init* Fix the warnings about the section mismatches for __init* in the HiSax driver. Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 19:44:11 +08:00
static struct isapnp_device_id *ipid __devinitdata = &hfc_ids[0];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static struct pnp_card *pnp_c __devinitdata = NULL;
#endif
[PATCH] hisax: fix usage of __init* Fix the warnings about the section mismatches for __init* in the HiSax driver. Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 19:44:11 +08:00
int __devinit
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
setup_hfcs(struct IsdnCard *card)
{
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, hfcs_revision);
printk(KERN_INFO "HiSax: HFC-S driver Rev. %s\n", HiSax_getrev(tmp));
#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",
__FUNCTION__, err);
return(0);
}
card->para[1] = pnp_port_start(pnp_d, 0);
card->para[0] = pnp_irq(pnp_d, 0);
if (!card->para[0] || !card->para[1]) {
printk(KERN_ERR "HFC 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 "HFC PnP: PnP error card found, no device\n");
}
}
ipid++;
pnp_c = NULL;
}
if (!ipid->card_vendor) {
printk(KERN_INFO "HFC PnP: no ISAPnP card found\n");
return(0);
}
}
#endif
cs->hw.hfcD.addr = card->para[1] & 0xfffe;
cs->irq = card->para[0];
cs->hw.hfcD.cip = 0;
cs->hw.hfcD.int_s1 = 0;
cs->hw.hfcD.send = NULL;
cs->bcs[0].hw.hfc.send = NULL;
cs->bcs[1].hw.hfc.send = NULL;
cs->hw.hfcD.dfifosize = 512;
cs->dc.hfcd.ph_state = 0;
cs->hw.hfcD.fifo = 255;
if (cs->typ == ISDN_CTYPE_TELES3C) {
cs->hw.hfcD.bfifosize = 1024 + 512;
} else if (cs->typ == ISDN_CTYPE_ACERP10) {
cs->hw.hfcD.bfifosize = 7*1024 + 512;
} else
return (0);
if (!request_region(cs->hw.hfcD.addr, 2, "HFCS isdn")) {
printk(KERN_WARNING
"HiSax: %s config port %x-%x already in use\n",
CardType[card->typ],
cs->hw.hfcD.addr,
cs->hw.hfcD.addr + 2);
return (0);
}
printk(KERN_INFO
"HFCS: defined at 0x%x IRQ %d HZ %d\n",
cs->hw.hfcD.addr,
cs->irq, HZ);
if (cs->typ == ISDN_CTYPE_TELES3C) {
/* Teles 16.3c IO ADR is 0x200 | YY0U (YY Bit 15/14 address) */
outb(0x00, cs->hw.hfcD.addr);
outb(0x56, cs->hw.hfcD.addr | 1);
} else if (cs->typ == ISDN_CTYPE_ACERP10) {
/* Acer P10 IO ADR is 0x300 */
outb(0x00, cs->hw.hfcD.addr);
outb(0x57, cs->hw.hfcD.addr | 1);
}
set_cs_func(cs);
cs->hw.hfcD.timer.function = (void *) hfcs_Timer;
cs->hw.hfcD.timer.data = (long) cs;
init_timer(&cs->hw.hfcD.timer);
cs->cardmsg = &hfcs_card_msg;
cs->irq_func = &hfcs_interrupt;
return (1);
}