/* $Id: teles0.c,v 2.15.2.4 2004/01/13 23:48:39 keil Exp $ * * low level stuff for Teles Memory IO isdn cards * * Author Karsten Keil * based on the teles driver from Jan den Ouden * 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. * * Thanks to Jan den Ouden * Fritz Elfert * Beat Doebeli * */ #include <linux/init.h> #include "hisax.h" #include "isdnl1.h" #include "isac.h" #include "hscx.h" extern const char *CardType[]; const char *teles0_revision = "$Revision: 2.15.2.4 $"; #define TELES_IOMEM_SIZE 0x400 #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) static inline u_char readisac(void __iomem *adr, u_char off) { return readb(adr + ((off & 1) ? 0x2ff : 0x100) + off); } static inline void writeisac(void __iomem *adr, u_char off, u_char data) { writeb(data, adr + ((off & 1) ? 0x2ff : 0x100) + off); mb(); } static inline u_char readhscx(void __iomem *adr, int hscx, u_char off) { return readb(adr + (hscx ? 0x1c0 : 0x180) + ((off & 1) ? 0x1ff : 0) + off); } static inline void writehscx(void __iomem *adr, int hscx, u_char off, u_char data) { writeb(data, adr + (hscx ? 0x1c0 : 0x180) + ((off & 1) ? 0x1ff : 0) + off); mb(); } static inline void read_fifo_isac(void __iomem *adr, u_char * data, int size) { register int i; register u_char __iomem *ad = adr + 0x100; for (i = 0; i < size; i++) data[i] = readb(ad); } static inline void write_fifo_isac(void __iomem *adr, u_char * data, int size) { register int i; register u_char __iomem *ad = adr + 0x100; for (i = 0; i < size; i++) { writeb(data[i], ad); mb(); } } static inline void read_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size) { register int i; register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180); for (i = 0; i < size; i++) data[i] = readb(ad); } static inline void write_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size) { int i; register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180); for (i = 0; i < size; i++) { writeb(data[i], ad); mb(); } } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readisac(cs->hw.teles0.membase, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writeisac(cs->hw.teles0.membase, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { read_fifo_isac(cs->hw.teles0.membase, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { write_fifo_isac(cs->hw.teles0.membase, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readhscx(cs->hw.teles0.membase, hscx, offset)); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writehscx(cs->hw.teles0.membase, hscx, offset, value); } /* * fast interrupt HSCX stuff goes here */ #define READHSCX(cs, nr, reg) readhscx(cs->hw.teles0.membase, nr, reg) #define WRITEHSCX(cs, nr, reg, data) writehscx(cs->hw.teles0.membase, nr, reg, data) #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt) #include "hscx_irq.c" static irqreturn_t teles0_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val; u_long flags; int count = 0; spin_lock_irqsave(&cs->lock, flags); val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); Start_HSCX: if (val) hscx_int_main(cs, val); val = readisac(cs->hw.teles0.membase, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); count++; val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); if (val && count < 5) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = readisac(cs->hw.teles0.membase, ISAC_ISTA); if (val && count < 5) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF); writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF); writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF); writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0); writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0); writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0); spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } void release_io_teles0(struct IsdnCardState *cs) { if (cs->hw.teles0.cfg_reg) release_region(cs->hw.teles0.cfg_reg, 8); iounmap(cs->hw.teles0.membase); release_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE); } static int reset_teles0(struct IsdnCardState *cs) { u_char cfval; if (cs->hw.teles0.cfg_reg) { switch (cs->irq) { case 2: case 9: cfval = 0x00; break; case 3: cfval = 0x02; break; case 4: cfval = 0x04; break; case 5: cfval = 0x06; break; case 10: cfval = 0x08; break; case 11: cfval = 0x0A; break; case 12: cfval = 0x0C; break; case 15: cfval = 0x0E; break; default: return(1); } cfval |= ((cs->hw.teles0.phymem >> 9) & 0xF0); byteout(cs->hw.teles0.cfg_reg + 4, cfval); HZDELAY(HZ / 10 + 1); byteout(cs->hw.teles0.cfg_reg + 4, cfval | 1); HZDELAY(HZ / 10 + 1); } writeb(0, cs->hw.teles0.membase + 0x80); mb(); HZDELAY(HZ / 5 + 1); writeb(1, cs->hw.teles0.membase + 0x80); mb(); HZDELAY(HZ / 5 + 1); return(0); } static int Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: spin_lock_irqsave(&cs->lock, flags); reset_teles0(cs); spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_RELEASE: release_io_teles0(cs); return(0); case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); inithscxisac(cs, 3); spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_TEST: return(0); } return(0); } int __init setup_teles0(struct IsdnCard *card) { u_char val; struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, teles0_revision); printk(KERN_INFO "HiSax: Teles 8.0/16.0 driver Rev. %s\n", HiSax_getrev(tmp)); if ((cs->typ != ISDN_CTYPE_16_0) && (cs->typ != ISDN_CTYPE_8_0)) return (0); if (cs->typ == ISDN_CTYPE_16_0) cs->hw.teles0.cfg_reg = card->para[2]; else /* 8.0 */ cs->hw.teles0.cfg_reg = 0; if (card->para[1] < 0x10000) { card->para[1] <<= 4; printk(KERN_INFO "Teles0: membase configured DOSish, assuming 0x%lx\n", (unsigned long) card->para[1]); } cs->irq = card->para[0]; if (cs->hw.teles0.cfg_reg) { if (!request_region(cs->hw.teles0.cfg_reg, 8, "teles cfg")) { printk(KERN_WARNING "HiSax: %s config port %x-%x already in use\n", CardType[card->typ], cs->hw.teles0.cfg_reg, cs->hw.teles0.cfg_reg + 8); return (0); } } if (cs->hw.teles0.cfg_reg) { if ((val = bytein(cs->hw.teles0.cfg_reg + 0)) != 0x51) { printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n", cs->hw.teles0.cfg_reg + 0, val); release_region(cs->hw.teles0.cfg_reg, 8); return (0); } if ((val = bytein(cs->hw.teles0.cfg_reg + 1)) != 0x93) { printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n", cs->hw.teles0.cfg_reg + 1, val); release_region(cs->hw.teles0.cfg_reg, 8); return (0); } val = bytein(cs->hw.teles0.cfg_reg + 2); /* 0x1e=without AB * 0x1f=with AB * 0x1c 16.3 ??? */ if (val != 0x1e && val != 0x1f) { printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n", cs->hw.teles0.cfg_reg + 2, val); release_region(cs->hw.teles0.cfg_reg, 8); return (0); } } /* 16.0 and 8.0 designed for IOM1 */ test_and_set_bit(HW_IOM1, &cs->HW_Flags); cs->hw.teles0.phymem = card->para[1]; if (!request_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE, "teles iomem")) { printk(KERN_WARNING "HiSax: %s memory region %lx-%lx already in use\n", CardType[card->typ], cs->hw.teles0.phymem, cs->hw.teles0.phymem + TELES_IOMEM_SIZE); if (cs->hw.teles0.cfg_reg) release_region(cs->hw.teles0.cfg_reg, 8); return (0); } cs->hw.teles0.membase = ioremap(cs->hw.teles0.phymem, TELES_IOMEM_SIZE); printk(KERN_INFO "HiSax: %s config irq:%d mem:%p cfg:0x%X\n", CardType[cs->typ], cs->irq, cs->hw.teles0.membase, cs->hw.teles0.cfg_reg); if (reset_teles0(cs)) { printk(KERN_WARNING "Teles0: wrong IRQ\n"); release_io_teles0(cs); return (0); } 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 = &Teles_card_msg; cs->irq_func = &teles0_interrupt; ISACVersion(cs, "Teles0:"); if (HscxVersion(cs, "Teles0:")) { printk(KERN_WARNING "Teles0: wrong HSCX versions check IO/MEM addresses\n"); release_io_teles0(cs); return (0); } return (1); }