diff options
Diffstat (limited to 'drivers/isdn/hisax/enternow_pci.c')
| -rw-r--r-- | drivers/isdn/hisax/enternow_pci.c | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/drivers/isdn/hisax/enternow_pci.c b/drivers/isdn/hisax/enternow_pci.c deleted file mode 100644 index e8d431a8302d..000000000000 --- a/drivers/isdn/hisax/enternow_pci.c +++ /dev/null @@ -1,420 +0,0 @@ -/* enternow_pci.c,v 0.99 2001/10/02 - * - * enternow_pci.c Card-specific routines for - * Formula-n enter:now ISDN PCI ab - * Gerdes AG Power ISDN PCI - * Woerltronic SA 16 PCI - * (based on HiSax driver by Karsten Keil) - * - * Author Christoph Ersfeld <info@formula-n.de> - * Formula-n Europe AG (www.formula-n.com) - * previously Gerdes AG - * - * - * This file is (c) under GNU PUBLIC LICENSE - * - * Notes: - * This driver interfaces to netjet.c which performs B-channel - * processing. - * - * Version 0.99 is the first release of this driver and there are - * certainly a few bugs. - * It isn't testet on linux 2.4 yet, so consider this code to be - * beta. - * - * Please don't report me any malfunction without sending - * (compressed) debug-logs. - * It would be nearly impossible to retrace it. - * - * Log D-channel-processing as follows: - * - * 1. Load hisax with card-specific parameters, this example ist for - * Formula-n enter:now ISDN PCI and compatible - * (f.e. Gerdes Power ISDN PCI) - * - * modprobe hisax type=41 protocol=2 id=gerdes - * - * if you chose an other value for id, you need to modify the - * code below, too. - * - * 2. set debug-level - * - * hisaxctrl gerdes 1 0x3ff - * hisaxctrl gerdes 11 0x4f - * cat /dev/isdnctrl >> ~/log & - * - * Please take also a look into /var/log/messages if there is - * anything importand concerning HISAX. - * - * - * Credits: - * Programming the driver for Formula-n enter:now ISDN PCI and - * necessary the driver for the used Amd 7930 D-channel-controller - * was spnsored by Formula-n Europe AG. - * Thanks to Karsten Keil and Petr Novak, who gave me support in - * Hisax-specific questions. - * I want so say special thanks to Carl-Friedrich Braun, who had to - * answer a lot of questions about generally ISDN and about handling - * of the Amd-Chip. - * - */ - - -#include "hisax.h" -#include "isac.h" -#include "isdnl1.h" -#include "amd7930_fn.h" -#include <linux/interrupt.h> -#include <linux/ppp_defs.h> -#include <linux/pci.h> -#include <linux/init.h> -#include "netjet.h" - - - -static const char *enternow_pci_rev = "$Revision: 1.1.4.5 $"; - - -/* for PowerISDN PCI */ -#define TJ_AMD_IRQ 0x20 -#define TJ_LED1 0x40 -#define TJ_LED2 0x80 - - -/* The window to [the] AMD [chip]... - * From address hw.njet.base + TJ_AMD_PORT onwards, the AMD - * maps [consecutive/multiple] 8 bits into the TigerJet I/O space - * -> 0x01 of the AMD at hw.njet.base + 0C4 */ -#define TJ_AMD_PORT 0xC0 - - - -/* *************************** I/O-Interface functions ************************************* */ - - -/* cs->readisac, macro rByteAMD */ -static unsigned char -ReadByteAmd7930(struct IsdnCardState *cs, unsigned char offset) -{ - /* direct register */ - if (offset < 8) - return (inb(cs->hw.njet.isac + 4 * offset)); - - /* indirect register */ - else { - outb(offset, cs->hw.njet.isac + 4 * AMD_CR); - return (inb(cs->hw.njet.isac + 4 * AMD_DR)); - } -} - -/* cs->writeisac, macro wByteAMD */ -static void -WriteByteAmd7930(struct IsdnCardState *cs, unsigned char offset, unsigned char value) -{ - /* direct register */ - if (offset < 8) - outb(value, cs->hw.njet.isac + 4 * offset); - - /* indirect register */ - else { - outb(offset, cs->hw.njet.isac + 4 * AMD_CR); - outb(value, cs->hw.njet.isac + 4 * AMD_DR); - } -} - - -static void -enpci_setIrqMask(struct IsdnCardState *cs, unsigned char val) { - if (!val) - outb(0x00, cs->hw.njet.base + NETJET_IRQMASK1); - else - outb(TJ_AMD_IRQ, cs->hw.njet.base + NETJET_IRQMASK1); -} - - -static unsigned char dummyrr(struct IsdnCardState *cs, int chan, unsigned char off) -{ - return (5); -} - -static void dummywr(struct IsdnCardState *cs, int chan, unsigned char off, unsigned char value) -{ - -} - - -/* ******************************************************************************** */ - - -static void -reset_enpci(struct IsdnCardState *cs) -{ - if (cs->debug & L1_DEB_ISAC) - debugl1(cs, "enter:now PCI: reset"); - - /* Reset on, (also for AMD) */ - cs->hw.njet.ctrl_reg = 0x07; - outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); - mdelay(20); - /* Reset off */ - cs->hw.njet.ctrl_reg = 0x30; - outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); - /* 20ms delay */ - mdelay(20); - cs->hw.njet.auxd = 0; // LED-status - cs->hw.njet.dmactrl = 0; - outb(~TJ_AMD_IRQ, cs->hw.njet.base + NETJET_AUXCTRL); - outb(TJ_AMD_IRQ, cs->hw.njet.base + NETJET_IRQMASK1); - outb(cs->hw.njet.auxd, cs->hw.njet.auxa); // LED off -} - - -static int -enpci_card_msg(struct IsdnCardState *cs, int mt, void *arg) -{ - u_long flags; - unsigned char *chan; - - if (cs->debug & L1_DEB_ISAC) - debugl1(cs, "enter:now PCI: card_msg: 0x%04X", mt); - - switch (mt) { - case CARD_RESET: - spin_lock_irqsave(&cs->lock, flags); - reset_enpci(cs); - Amd7930_init(cs); - spin_unlock_irqrestore(&cs->lock, flags); - break; - case CARD_RELEASE: - release_io_netjet(cs); - break; - case CARD_INIT: - reset_enpci(cs); - inittiger(cs); - /* irq must be on here */ - Amd7930_init(cs); - break; - case CARD_TEST: - break; - case MDL_ASSIGN: - /* TEI assigned, LED1 on */ - cs->hw.njet.auxd = TJ_AMD_IRQ << 1; - outb(cs->hw.njet.auxd, cs->hw.njet.base + NETJET_AUXDATA); - break; - case MDL_REMOVE: - /* TEI removed, LEDs off */ - cs->hw.njet.auxd = 0; - outb(0x00, cs->hw.njet.base + NETJET_AUXDATA); - break; - case MDL_BC_ASSIGN: - /* activate B-channel */ - chan = (unsigned char *)arg; - - if (cs->debug & L1_DEB_ISAC) - debugl1(cs, "enter:now PCI: assign phys. BC %d in AMD LMR1", *chan); - - cs->dc.amd7930.ph_command(cs, (cs->dc.amd7930.lmr1 | (*chan + 1)), "MDL_BC_ASSIGN"); - /* at least one b-channel in use, LED 2 on */ - cs->hw.njet.auxd |= TJ_AMD_IRQ << 2; - outb(cs->hw.njet.auxd, cs->hw.njet.base + NETJET_AUXDATA); - break; - case MDL_BC_RELEASE: - /* deactivate B-channel */ - chan = (unsigned char *)arg; - - if (cs->debug & L1_DEB_ISAC) - debugl1(cs, "enter:now PCI: release phys. BC %d in Amd LMR1", *chan); - - cs->dc.amd7930.ph_command(cs, (cs->dc.amd7930.lmr1 & ~(*chan + 1)), "MDL_BC_RELEASE"); - /* no b-channel active -> LED2 off */ - if (!(cs->dc.amd7930.lmr1 & 3)) { - cs->hw.njet.auxd &= ~(TJ_AMD_IRQ << 2); - outb(cs->hw.njet.auxd, cs->hw.njet.base + NETJET_AUXDATA); - } - break; - default: - break; - - } - return (0); -} - -static irqreturn_t -enpci_interrupt(int intno, void *dev_id) -{ - struct IsdnCardState *cs = dev_id; - unsigned char s0val, s1val, ir; - u_long flags; - - spin_lock_irqsave(&cs->lock, flags); - s1val = inb(cs->hw.njet.base + NETJET_IRQSTAT1); - - /* AMD threw an interrupt */ - if (!(s1val & TJ_AMD_IRQ)) { - /* read and clear interrupt-register */ - ir = ReadByteAmd7930(cs, 0x00); - Amd7930_interrupt(cs, ir); - s1val = 1; - } else - s1val = 0; - s0val = inb(cs->hw.njet.base + NETJET_IRQSTAT0); - if ((s0val | s1val) == 0) { // shared IRQ - spin_unlock_irqrestore(&cs->lock, flags); - return IRQ_NONE; - } - if (s0val) - outb(s0val, cs->hw.njet.base + NETJET_IRQSTAT0); - - /* DMA-Interrupt: B-channel-stuff */ - /* 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 = s0val | 0x02; - else /* the 1st read page is free */ - s0val = 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)) { - 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); - test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); - } - spin_unlock_irqrestore(&cs->lock, flags); - return IRQ_HANDLED; -} - -static int en_pci_probe(struct pci_dev *dev_netjet, struct IsdnCardState *cs) -{ - if (pci_enable_device(dev_netjet)) - return (0); - cs->irq = dev_netjet->irq; - if (!cs->irq) { - printk(KERN_WARNING "enter:now PCI: 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 "enter:now PCI: No IO-Adr for PCI card found\n"); - return (0); - } - /* checks Sub-Vendor ID because system crashes with Traverse-Card */ - if ((dev_netjet->subsystem_vendor != 0x55) || - (dev_netjet->subsystem_device != 0x02)) { - printk(KERN_WARNING "enter:now: You tried to load this driver with an incompatible TigerJet-card\n"); - printk(KERN_WARNING "Use type=20 for Traverse NetJet PCI Card.\n"); - return (0); - } - - return (1); -} - -static void en_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 + 0xC0; // Fenster zum AMD - - /* Reset an */ - cs->hw.njet.ctrl_reg = 0x07; // geändert von 0xff - outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); - /* 20 ms Pause */ - mdelay(20); - - cs->hw.njet.ctrl_reg = 0x30; /* Reset Off and status read clear */ - outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); - mdelay(10); - - cs->hw.njet.auxd = 0x00; // war 0xc0 - cs->hw.njet.dmactrl = 0; - - outb(~TJ_AMD_IRQ, cs->hw.njet.base + NETJET_AUXCTRL); - outb(TJ_AMD_IRQ, cs->hw.njet.base + NETJET_IRQMASK1); - outb(cs->hw.njet.auxd, cs->hw.njet.auxa); -} - -static int en_cs_init_rest(struct IsdnCard *card, struct IsdnCardState *cs) -{ - const int bytecnt = 256; - - printk(KERN_INFO - "enter:now PCI: PCI card configured at 0x%lx IRQ %d\n", - cs->hw.njet.base, cs->irq); - if (!request_region(cs->hw.njet.base, bytecnt, "Fn_ISDN")) { - printk(KERN_WARNING - "HiSax: enter:now config port %lx-%lx already in use\n", - cs->hw.njet.base, - cs->hw.njet.base + bytecnt); - return (0); - } - - setup_Amd7930(cs); - cs->hw.njet.last_is0 = 0; - /* macro rByteAMD */ - cs->readisac = &ReadByteAmd7930; - /* macro wByteAMD */ - cs->writeisac = &WriteByteAmd7930; - cs->dc.amd7930.setIrqMask = &enpci_setIrqMask; - - cs->BC_Read_Reg = &dummyrr; - cs->BC_Write_Reg = &dummywr; - cs->BC_Send_Data = &netjet_fill_dma; - cs->cardmsg = &enpci_card_msg; - cs->irq_func = &enpci_interrupt; - cs->irq_flags |= IRQF_SHARED; - - return (1); -} - -static struct pci_dev *dev_netjet = NULL; - -/* called by config.c */ -int setup_enternow_pci(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, enternow_pci_rev); - printk(KERN_INFO "HiSax: Formula-n Europe AG enter:now ISDN PCI driver Rev. %s\n", HiSax_getrev(tmp)); - if (cs->typ != ISDN_CTYPE_ENTERNOW) - 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 = en_pci_probe(dev_netjet, cs); - if (!ret) - return (0); - } else { - printk(KERN_WARNING "enter:now PCI: No PCI card found\n"); - return (0); - } - - en_cs_init(card, cs); - break; - } - - return en_cs_init_rest(card, cs); -} |