diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/isdn/hisax/gazel.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'drivers/isdn/hisax/gazel.c')
-rw-r--r-- | drivers/isdn/hisax/gazel.c | 684 |
1 files changed, 684 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/gazel.c b/drivers/isdn/hisax/gazel.c new file mode 100644 index 000000000000..24a05a43f33e --- /dev/null +++ b/drivers/isdn/hisax/gazel.c @@ -0,0 +1,684 @@ +/* $Id: gazel.c,v 2.19.2.4 2004/01/14 16:04:48 keil Exp $ + * + * low level stuff for Gazel isdn cards + * + * Author BeWan Systems + * based on source code from Karsten Keil + * Copyright by BeWan Systems + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include "hisax.h" +#include "isac.h" +#include "hscx.h" +#include "isdnl1.h" +#include "ipac.h" +#include <linux/pci.h> + +extern const char *CardType[]; +const char *gazel_revision = "$Revision: 2.19.2.4 $"; + +#define R647 1 +#define R685 2 +#define R753 3 +#define R742 4 + +#define PLX_CNTRL 0x50 /* registre de controle PLX */ +#define RESET_GAZEL 0x4 +#define RESET_9050 0x40000000 +#define PLX_INCSR 0x4C /* registre d'IT du 9050 */ +#define INT_ISAC_EN 0x8 /* 1 = enable IT isac */ +#define INT_ISAC 0x20 /* 1 = IT isac en cours */ +#define INT_HSCX_EN 0x1 /* 1 = enable IT hscx */ +#define INT_HSCX 0x4 /* 1 = IT hscx en cours */ +#define INT_PCI_EN 0x40 /* 1 = enable IT PCI */ +#define INT_IPAC_EN 0x3 /* enable IT ipac */ + + +#define byteout(addr,val) outb(val,addr) +#define bytein(addr) inb(addr) + +static inline u_char +readreg(unsigned int adr, u_short off) +{ + return bytein(adr + off); +} + +static inline void +writereg(unsigned int adr, u_short off, u_char data) +{ + byteout(adr + off, data); +} + + +static inline void +read_fifo(unsigned int adr, u_char * data, int size) +{ + insb(adr, data, size); +} + +static void +write_fifo(unsigned int adr, u_char * data, int size) +{ + outsb(adr, data, size); +} + +static inline u_char +readreg_ipac(unsigned int adr, u_short off) +{ + register u_char ret; + + byteout(adr, off); + ret = bytein(adr + 4); + return ret; +} + +static inline void +writereg_ipac(unsigned int adr, u_short off, u_char data) +{ + byteout(adr, off); + byteout(adr + 4, data); +} + + +static inline void +read_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size) +{ + byteout(adr, off); + insb(adr + 4, data, size); +} + +static void +write_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size) +{ + byteout(adr, off); + outsb(adr + 4, data, size); +} + +/* Interface functions */ + +static u_char +ReadISAC(struct IsdnCardState *cs, u_char offset) +{ + u_short off2 = offset; + + switch (cs->subtyp) { + case R647: + off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf)); + case R685: + return (readreg(cs->hw.gazel.isac, off2)); + case R753: + case R742: + return (readreg_ipac(cs->hw.gazel.ipac, 0x80 + off2)); + } + return 0; +} + +static void +WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) +{ + u_short off2 = offset; + + switch (cs->subtyp) { + case R647: + off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf)); + case R685: + writereg(cs->hw.gazel.isac, off2, value); + break; + case R753: + case R742: + writereg_ipac(cs->hw.gazel.ipac, 0x80 + off2, value); + break; + } +} + +static void +ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) +{ + switch (cs->subtyp) { + case R647: + case R685: + read_fifo(cs->hw.gazel.isacfifo, data, size); + break; + case R753: + case R742: + read_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size); + break; + } +} + +static void +WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) +{ + switch (cs->subtyp) { + case R647: + case R685: + write_fifo(cs->hw.gazel.isacfifo, data, size); + break; + case R753: + case R742: + write_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size); + break; + } +} + +static void +ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size) +{ + switch (cs->subtyp) { + case R647: + case R685: + read_fifo(cs->hw.gazel.hscxfifo[hscx], data, size); + break; + case R753: + case R742: + read_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size); + break; + } +} + +static void +WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size) +{ + switch (cs->subtyp) { + case R647: + case R685: + write_fifo(cs->hw.gazel.hscxfifo[hscx], data, size); + break; + case R753: + case R742: + write_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size); + break; + } +} + +static u_char +ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) +{ + u_short off2 = offset; + + switch (cs->subtyp) { + case R647: + off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf)); + case R685: + return (readreg(cs->hw.gazel.hscx[hscx], off2)); + case R753: + case R742: + return (readreg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2)); + } + return 0; +} + +static void +WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) +{ + u_short off2 = offset; + + switch (cs->subtyp) { + case R647: + off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf)); + case R685: + writereg(cs->hw.gazel.hscx[hscx], off2, value); + break; + case R753: + case R742: + writereg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2, value); + break; + } +} + +/* + * fast interrupt HSCX stuff goes here + */ + +#define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg) +#define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data) +#define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt) +#define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt) + +#include "hscx_irq.c" + +static irqreturn_t +gazel_interrupt(int intno, void *dev_id, struct pt_regs *regs) +{ +#define MAXCOUNT 5 + struct IsdnCardState *cs = dev_id; + u_char valisac, valhscx; + int count = 0; + u_long flags; + + spin_lock_irqsave(&cs->lock, flags); + do { + valhscx = ReadHSCX(cs, 1, HSCX_ISTA); + if (valhscx) + hscx_int_main(cs, valhscx); + valisac = ReadISAC(cs, ISAC_ISTA); + if (valisac) + isac_interrupt(cs, valisac); + count++; + } while ((valhscx || valisac) && (count < MAXCOUNT)); + + WriteHSCX(cs, 0, HSCX_MASK, 0xFF); + WriteHSCX(cs, 1, HSCX_MASK, 0xFF); + WriteISAC(cs, ISAC_MASK, 0xFF); + WriteISAC(cs, ISAC_MASK, 0x0); + WriteHSCX(cs, 0, HSCX_MASK, 0x0); + WriteHSCX(cs, 1, HSCX_MASK, 0x0); + spin_unlock_irqrestore(&cs->lock, flags); + return IRQ_HANDLED; +} + + +static irqreturn_t +gazel_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs) +{ + struct IsdnCardState *cs = dev_id; + u_char ista, val; + int count = 0; + u_long flags; + + spin_lock_irqsave(&cs->lock, flags); + ista = ReadISAC(cs, IPAC_ISTA - 0x80); + do { + if (ista & 0x0f) { + val = ReadHSCX(cs, 1, HSCX_ISTA); + if (ista & 0x01) + val |= 0x01; + if (ista & 0x04) + val |= 0x02; + if (ista & 0x08) + val |= 0x04; + if (val) { + hscx_int_main(cs, val); + } + } + if (ista & 0x20) { + val = 0xfe & ReadISAC(cs, ISAC_ISTA); + if (val) { + isac_interrupt(cs, val); + } + } + if (ista & 0x10) { + val = 0x01; + isac_interrupt(cs, val); + } + ista = ReadISAC(cs, IPAC_ISTA - 0x80); + count++; + } + while ((ista & 0x3f) && (count < MAXCOUNT)); + + WriteISAC(cs, IPAC_MASK - 0x80, 0xFF); + WriteISAC(cs, IPAC_MASK - 0x80, 0xC0); + spin_unlock_irqrestore(&cs->lock, flags); + return IRQ_HANDLED; +} +void +release_io_gazel(struct IsdnCardState *cs) +{ + unsigned int i; + + switch (cs->subtyp) { + case R647: + for (i = 0x0000; i < 0xC000; i += 0x1000) + release_region(i + cs->hw.gazel.hscx[0], 16); + release_region(0xC000 + cs->hw.gazel.hscx[0], 1); + break; + + case R685: + release_region(cs->hw.gazel.hscx[0], 0x100); + release_region(cs->hw.gazel.cfg_reg, 0x80); + break; + + case R753: + release_region(cs->hw.gazel.ipac, 0x8); + release_region(cs->hw.gazel.cfg_reg, 0x80); + break; + + case R742: + release_region(cs->hw.gazel.ipac, 8); + break; + } +} + +static int +reset_gazel(struct IsdnCardState *cs) +{ + unsigned long plxcntrl, addr = cs->hw.gazel.cfg_reg; + + switch (cs->subtyp) { + case R647: + writereg(addr, 0, 0); + HZDELAY(10); + writereg(addr, 0, 1); + HZDELAY(2); + break; + case R685: + plxcntrl = inl(addr + PLX_CNTRL); + plxcntrl |= (RESET_9050 + RESET_GAZEL); + outl(plxcntrl, addr + PLX_CNTRL); + plxcntrl &= ~(RESET_9050 + RESET_GAZEL); + HZDELAY(4); + outl(plxcntrl, addr + PLX_CNTRL); + HZDELAY(10); + outb(INT_ISAC_EN + INT_HSCX_EN + INT_PCI_EN, addr + PLX_INCSR); + break; + case R753: + plxcntrl = inl(addr + PLX_CNTRL); + plxcntrl |= (RESET_9050 + RESET_GAZEL); + outl(plxcntrl, addr + PLX_CNTRL); + plxcntrl &= ~(RESET_9050 + RESET_GAZEL); + WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20); + HZDELAY(4); + outl(plxcntrl, addr + PLX_CNTRL); + HZDELAY(10); + WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00); + WriteISAC(cs, IPAC_ACFG - 0x80, 0xff); + WriteISAC(cs, IPAC_AOE - 0x80, 0x0); + WriteISAC(cs, IPAC_MASK - 0x80, 0xff); + WriteISAC(cs, IPAC_CONF - 0x80, 0x1); + outb(INT_IPAC_EN + INT_PCI_EN, addr + PLX_INCSR); + WriteISAC(cs, IPAC_MASK - 0x80, 0xc0); + break; + case R742: + WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20); + HZDELAY(4); + WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00); + WriteISAC(cs, IPAC_ACFG - 0x80, 0xff); + WriteISAC(cs, IPAC_AOE - 0x80, 0x0); + WriteISAC(cs, IPAC_MASK - 0x80, 0xff); + WriteISAC(cs, IPAC_CONF - 0x80, 0x1); + WriteISAC(cs, IPAC_MASK - 0x80, 0xc0); + break; + } + return (0); +} + +static int +Gazel_card_msg(struct IsdnCardState *cs, int mt, void *arg) +{ + u_long flags; + + switch (mt) { + case CARD_RESET: + spin_lock_irqsave(&cs->lock, flags); + reset_gazel(cs); + spin_unlock_irqrestore(&cs->lock, flags); + return (0); + case CARD_RELEASE: + release_io_gazel(cs); + return (0); + case CARD_INIT: + spin_lock_irqsave(&cs->lock, flags); + inithscxisac(cs, 1); + if ((cs->subtyp==R647)||(cs->subtyp==R685)) { + int i; + for (i=0;i<(2+MAX_WAITING_CALLS);i++) { + cs->bcs[i].hw.hscx.tsaxr0 = 0x1f; + cs->bcs[i].hw.hscx.tsaxr1 = 0x23; + } + } + spin_unlock_irqrestore(&cs->lock, flags); + return (0); + case CARD_TEST: + return (0); + } + return (0); +} + +static int +reserve_regions(struct IsdnCard *card, struct IsdnCardState *cs) +{ + unsigned int i, j, base = 0, adr = 0, len = 0; + + switch (cs->subtyp) { + case R647: + base = cs->hw.gazel.hscx[0]; + if (!request_region(adr = (0xC000 + base), len = 1, "gazel")) + goto error; + for (i = 0x0000; i < 0xC000; i += 0x1000) { + if (!request_region(adr = (i + base), len = 16, "gazel")) + goto error; + } + if (i != 0xC000) { + for (j = 0; j < i; j+= 0x1000) + release_region(j + base, 16); + release_region(0xC000 + base, 1); + goto error; + } + break; + + case R685: + if (!request_region(adr = cs->hw.gazel.hscx[0], len = 0x100, "gazel")) + goto error; + if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) { + release_region(cs->hw.gazel.hscx[0],0x100); + goto error; + } + break; + + case R753: + if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel")) + goto error; + if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) { + release_region(cs->hw.gazel.ipac, 8); + goto error; + } + break; + + case R742: + if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel")) + goto error; + break; + } + + return 0; + + error: + printk(KERN_WARNING "Gazel: %s io ports 0x%x-0x%x already in use\n", + CardType[cs->typ], adr, adr + len); + return 1; +} + +static int __init +setup_gazelisa(struct IsdnCard *card, struct IsdnCardState *cs) +{ + printk(KERN_INFO "Gazel: ISA PnP card automatic recognition\n"); + // we got an irq parameter, assume it is an ISA card + // R742 decodes address even in not started... + // R647 returns FF if not present or not started + // eventually needs improvment + if (readreg_ipac(card->para[1], IPAC_ID) == 1) + cs->subtyp = R742; + else + cs->subtyp = R647; + + setup_isac(cs); + cs->hw.gazel.cfg_reg = card->para[1] + 0xC000; + cs->hw.gazel.ipac = card->para[1]; + cs->hw.gazel.isac = card->para[1] + 0x8000; + cs->hw.gazel.hscx[0] = card->para[1]; + cs->hw.gazel.hscx[1] = card->para[1] + 0x4000; + cs->irq = card->para[0]; + cs->hw.gazel.isacfifo = cs->hw.gazel.isac; + cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0]; + cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1]; + + switch (cs->subtyp) { + case R647: + printk(KERN_INFO "Gazel: Card ISA R647/R648 found\n"); + cs->dc.isac.adf2 = 0x87; + printk(KERN_INFO + "Gazel: config irq:%d isac:0x%X cfg:0x%X\n", + cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg); + printk(KERN_INFO + "Gazel: hscx A:0x%X hscx B:0x%X\n", + cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]); + + break; + case R742: + printk(KERN_INFO "Gazel: Card ISA R742 found\n"); + test_and_set_bit(HW_IPAC, &cs->HW_Flags); + printk(KERN_INFO + "Gazel: config irq:%d ipac:0x%X\n", + cs->irq, cs->hw.gazel.ipac); + break; + } + + return (0); +} + +static struct pci_dev *dev_tel __initdata = NULL; + +static int __init +setup_gazelpci(struct IsdnCardState *cs) +{ + u_int pci_ioaddr0 = 0, pci_ioaddr1 = 0; + u_char pci_irq = 0, found; + u_int nbseek, seekcard; + + printk(KERN_WARNING "Gazel: PCI card automatic recognition\n"); + + found = 0; + seekcard = PCI_DEVICE_ID_PLX_R685; + for (nbseek = 0; nbseek < 3; nbseek++) { + if ((dev_tel = pci_find_device(PCI_VENDOR_ID_PLX, seekcard, dev_tel))) { + if (pci_enable_device(dev_tel)) + return 1; + pci_irq = dev_tel->irq; + pci_ioaddr0 = pci_resource_start(dev_tel, 1); + pci_ioaddr1 = pci_resource_start(dev_tel, 2); + found = 1; + } + if (found) + break; + else { + switch (seekcard) { + case PCI_DEVICE_ID_PLX_R685: + seekcard = PCI_DEVICE_ID_PLX_R753; + break; + case PCI_DEVICE_ID_PLX_R753: + seekcard = PCI_DEVICE_ID_PLX_DJINN_ITOO; + break; + } + } + } + if (!found) { + printk(KERN_WARNING "Gazel: No PCI card found\n"); + return (1); + } + if (!pci_irq) { + printk(KERN_WARNING "Gazel: No IRQ for PCI card found\n"); + return 1; + } + cs->hw.gazel.pciaddr[0] = pci_ioaddr0; + cs->hw.gazel.pciaddr[1] = pci_ioaddr1; + setup_isac(cs); + pci_ioaddr1 &= 0xfffe; + cs->hw.gazel.cfg_reg = pci_ioaddr0 & 0xfffe; + cs->hw.gazel.ipac = pci_ioaddr1; + cs->hw.gazel.isac = pci_ioaddr1 + 0x80; + cs->hw.gazel.hscx[0] = pci_ioaddr1; + cs->hw.gazel.hscx[1] = pci_ioaddr1 + 0x40; + cs->hw.gazel.isacfifo = cs->hw.gazel.isac; + cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0]; + cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1]; + cs->irq = pci_irq; + cs->irq_flags |= SA_SHIRQ; + + switch (seekcard) { + case PCI_DEVICE_ID_PLX_R685: + printk(KERN_INFO "Gazel: Card PCI R685 found\n"); + cs->subtyp = R685; + cs->dc.isac.adf2 = 0x87; + printk(KERN_INFO + "Gazel: config irq:%d isac:0x%X cfg:0x%X\n", + cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg); + printk(KERN_INFO + "Gazel: hscx A:0x%X hscx B:0x%X\n", + cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]); + break; + case PCI_DEVICE_ID_PLX_R753: + case PCI_DEVICE_ID_PLX_DJINN_ITOO: + printk(KERN_INFO "Gazel: Card PCI R753 found\n"); + cs->subtyp = R753; + test_and_set_bit(HW_IPAC, &cs->HW_Flags); + printk(KERN_INFO + "Gazel: config irq:%d ipac:0x%X cfg:0x%X\n", + cs->irq, cs->hw.gazel.ipac, cs->hw.gazel.cfg_reg); + break; + } + + return (0); +} + +int __init +setup_gazel(struct IsdnCard *card) +{ + struct IsdnCardState *cs = card->cs; + char tmp[64]; + u_char val; + + strcpy(tmp, gazel_revision); + printk(KERN_INFO "Gazel: Driver Revision %s\n", HiSax_getrev(tmp)); + + if (cs->typ != ISDN_CTYPE_GAZEL) + return (0); + + if (card->para[0]) { + if (setup_gazelisa(card, cs)) + return (0); + } else { + +#ifdef CONFIG_PCI + if (setup_gazelpci(cs)) + return (0); +#else + printk(KERN_WARNING "Gazel: Card PCI requested and NO_PCI_BIOS, unable to config\n"); + return (0); +#endif /* CONFIG_PCI */ + } + + if (reserve_regions(card, cs)) { + return (0); + } + if (reset_gazel(cs)) { + printk(KERN_WARNING "Gazel: wrong IRQ\n"); + release_io_gazel(cs); + return (0); + } + 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 = &Gazel_card_msg; + + switch (cs->subtyp) { + case R647: + case R685: + cs->irq_func = &gazel_interrupt; + ISACVersion(cs, "Gazel:"); + if (HscxVersion(cs, "Gazel:")) { + printk(KERN_WARNING + "Gazel: wrong HSCX versions check IO address\n"); + release_io_gazel(cs); + return (0); + } + break; + case R742: + case R753: + cs->irq_func = &gazel_interrupt_ipac; + val = ReadISAC(cs, IPAC_ID - 0x80); + printk(KERN_INFO "Gazel: IPAC version %x\n", val); + break; + } + + return (1); +} |