diff options
Diffstat (limited to 'drivers/isdn/hisax/nj_s.c')
-rw-r--r-- | drivers/isdn/hisax/nj_s.c | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/drivers/isdn/hisax/nj_s.c b/drivers/isdn/hisax/nj_s.c deleted file mode 100644 index 32b4bbd18eb9..000000000000 --- a/drivers/isdn/hisax/nj_s.c +++ /dev/null @@ -1,294 +0,0 @@ -/* $Id: nj_s.c,v 2.13.2.4 2004/01/16 01:53:48 keil Exp $ - * - * 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 "hisax.h" -#include "isac.h" -#include "isdnl1.h" -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/ppp_defs.h> -#include "netjet.h" - -static const char *NETjet_S_revision = "$Revision: 2.13.2.4 $"; - -static u_char dummyrr(struct IsdnCardState *cs, int chan, u_char off) -{ - return (5); -} - -static void dummywr(struct IsdnCardState *cs, int chan, u_char off, u_char value) -{ -} - -static irqreturn_t -netjet_s_interrupt(int intno, void *dev_id) -{ - struct IsdnCardState *cs = dev_id; - u_char val, s1val, s0val; - u_long flags; - - spin_lock_irqsave(&cs->lock, flags); - s1val = bytein(cs->hw.njet.base + NETJET_IRQSTAT1); - if (!(s1val & NETJET_ISACIRQ)) { - val = NETjet_ReadIC(cs, ISAC_ISTA); - if (cs->debug & L1_DEB_ISAC) - debugl1(cs, "tiger: i1 %x %x", s1val, val); - if (val) { - isac_interrupt(cs, val); - NETjet_WriteIC(cs, ISAC_MASK, 0xFF); - NETjet_WriteIC(cs, ISAC_MASK, 0x0); - } - s1val = 1; - } else - s1val = 0; - /* - * read/write stat0 is better, because lower IRQ rate - * Note the IRQ is on for 125 us if a condition match - * thats long on modern CPU and so the IRQ is reentered - * all the time. - */ - s0val = bytein(cs->hw.njet.base + NETJET_IRQSTAT0); - if ((s0val | s1val) == 0) { // shared IRQ - spin_unlock_irqrestore(&cs->lock, flags); - return IRQ_NONE; - } - if (s0val) - byteout(cs->hw.njet.base + NETJET_IRQSTAT0, s0val); - /* start new code 13/07/00 GE */ - /* set bits in sval to indicate which page is free */ - if (inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR) < - inl(cs->hw.njet.base + NETJET_DMA_WRITE_IRQ)) - /* the 2nd write page is free */ - s0val = 0x08; - else /* the 1st write page is free */ - s0val = 0x04; - if (inl(cs->hw.njet.base + NETJET_DMA_READ_ADR) < - inl(cs->hw.njet.base + NETJET_DMA_READ_IRQ)) - /* the 2nd read page is free */ - s0val |= 0x02; - else /* the 1st read page is free */ - s0val |= 0x01; - if (s0val != cs->hw.njet.last_is0) /* we have a DMA interrupt */ - { - if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) { - printk(KERN_WARNING "nj LOCK_ATOMIC s0val %x->%x\n", - cs->hw.njet.last_is0, s0val); - spin_unlock_irqrestore(&cs->lock, flags); - return IRQ_HANDLED; - } - cs->hw.njet.irqstat0 = s0val; - if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_READ) != - (cs->hw.njet.last_is0 & NETJET_IRQM0_READ)) - /* we have a read dma int */ - read_tiger(cs); - if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE) != - (cs->hw.njet.last_is0 & NETJET_IRQM0_WRITE)) - /* we have a write dma int */ - write_tiger(cs); - /* end new code 13/07/00 GE */ - test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); - } - spin_unlock_irqrestore(&cs->lock, flags); - return IRQ_HANDLED; -} - -static void -reset_netjet_s(struct IsdnCardState *cs) -{ - cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); - /* now edge triggered for TJ320 GE 13/07/00 */ - /* see comment in IRQ function */ - if (cs->subtyp) /* TJ320 */ - cs->hw.njet.ctrl_reg = 0x40; /* Reset Off and status read clear */ - else - cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); - cs->hw.njet.auxd = 0; - cs->hw.njet.dmactrl = 0; - byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); - byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); - byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); -} - -static int -NETjet_S_card_msg(struct IsdnCardState *cs, int mt, void *arg) -{ - u_long flags; - - switch (mt) { - case CARD_RESET: - spin_lock_irqsave(&cs->lock, flags); - reset_netjet_s(cs); - spin_unlock_irqrestore(&cs->lock, flags); - return (0); - case CARD_RELEASE: - release_io_netjet(cs); - return (0); - case CARD_INIT: - reset_netjet_s(cs); - inittiger(cs); - spin_lock_irqsave(&cs->lock, flags); - clear_pending_isac_ints(cs); - initisac(cs); - /* Reenable all IRQ */ - cs->writeisac(cs, ISAC_MASK, 0); - spin_unlock_irqrestore(&cs->lock, flags); - return (0); - case CARD_TEST: - return (0); - } - return (0); -} - -static int njs_pci_probe(struct pci_dev *dev_netjet, struct IsdnCardState *cs) -{ - u32 cfg; - - if (pci_enable_device(dev_netjet)) - return (0); - pci_set_master(dev_netjet); - cs->irq = dev_netjet->irq; - if (!cs->irq) { - printk(KERN_WARNING "NETjet-S: No IRQ for PCI card found\n"); - return (0); - } - cs->hw.njet.base = pci_resource_start(dev_netjet, 0); - if (!cs->hw.njet.base) { - printk(KERN_WARNING "NETjet-S: No IO-Adr for PCI card found\n"); - return (0); - } - /* the TJ300 and TJ320 must be detected, the IRQ handling is different - * unfortunately the chips use the same device ID, but the TJ320 has - * the bit20 in status PCI cfg register set - */ - pci_read_config_dword(dev_netjet, 0x04, &cfg); - if (cfg & 0x00100000) - cs->subtyp = 1; /* TJ320 */ - else - cs->subtyp = 0; /* TJ300 */ - /* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG www.formula-n.com */ - if ((dev_netjet->subsystem_vendor == 0x55) && - (dev_netjet->subsystem_device == 0x02)) { - printk(KERN_WARNING "Netjet: You tried to load this driver with an incompatible TigerJet-card\n"); - printk(KERN_WARNING "Use type=41 for Formula-n enter:now ISDN PCI and compatible\n"); - return (0); - } - /* end new code */ - - return (1); -} - -static int njs_cs_init(struct IsdnCard *card, struct IsdnCardState *cs) -{ - - cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; - cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF; - - cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); - - cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); - - cs->hw.njet.auxd = 0xC0; - cs->hw.njet.dmactrl = 0; - - byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); - byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); - byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); - - switch (((NETjet_ReadIC(cs, ISAC_RBCH) >> 5) & 3)) - { - case 0: - return 1; /* end loop */ - - case 3: - printk(KERN_WARNING "NETjet-S: NETspider-U PCI card found\n"); - return -1; /* continue looping */ - - default: - printk(KERN_WARNING "NETjet-S: No PCI card found\n"); - return 0; /* end loop & function */ - } - return 1; /* end loop */ -} - -static int njs_cs_init_rest(struct IsdnCard *card, struct IsdnCardState *cs) -{ - const int bytecnt = 256; - - printk(KERN_INFO - "NETjet-S: %s card configured at %#lx IRQ %d\n", - cs->subtyp ? "TJ320" : "TJ300", cs->hw.njet.base, cs->irq); - if (!request_region(cs->hw.njet.base, bytecnt, "netjet-s isdn")) { - printk(KERN_WARNING - "HiSax: NETjet-S config port %#lx-%#lx already in use\n", - cs->hw.njet.base, - cs->hw.njet.base + bytecnt); - return (0); - } - cs->readisac = &NETjet_ReadIC; - cs->writeisac = &NETjet_WriteIC; - cs->readisacfifo = &NETjet_ReadICfifo; - cs->writeisacfifo = &NETjet_WriteICfifo; - cs->BC_Read_Reg = &dummyrr; - cs->BC_Write_Reg = &dummywr; - cs->BC_Send_Data = &netjet_fill_dma; - setup_isac(cs); - cs->cardmsg = &NETjet_S_card_msg; - cs->irq_func = &netjet_s_interrupt; - cs->irq_flags |= IRQF_SHARED; - ISACVersion(cs, "NETjet-S:"); - - return (1); -} - -static struct pci_dev *dev_netjet = NULL; - -int setup_netjet_s(struct IsdnCard *card) -{ - int ret; - struct IsdnCardState *cs = card->cs; - char tmp[64]; - -#ifdef __BIG_ENDIAN -#error "not running on big endian machines now" -#endif - strcpy(tmp, NETjet_S_revision); - printk(KERN_INFO "HiSax: Traverse Tech. NETjet-S driver Rev. %s\n", HiSax_getrev(tmp)); - if (cs->typ != ISDN_CTYPE_NETJET_S) - return (0); - test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); - - for (;;) - { - if ((dev_netjet = hisax_find_pci_device(PCI_VENDOR_ID_TIGERJET, - PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { - ret = njs_pci_probe(dev_netjet, cs); - if (!ret) - return (0); - } else { - printk(KERN_WARNING "NETjet-S: No PCI card found\n"); - return (0); - } - - ret = njs_cs_init(card, cs); - if (!ret) - return (0); - if (ret > 0) - break; - /* otherwise, ret < 0, continue looping */ - } - - return njs_cs_init_rest(card, cs); -} |