/* $Id: sportster.c,v 1.1 2004/03/11 03:59:31 bcrl Exp $ * * sportster.c low level stuff for USR Sportster internal TA * * Author Karsten Keil (keil@isdn4linux.de) * * Thanks to Christian "naddy" Weisgerber (3Com, US Robotics) for documentation * * This file is (c) under GNU PUBLIC LICENSE * */ #define __NO_VERSION__ #include #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" extern const char *CardType[]; const char *sportster_revision = "$Revision: 1.1 $"; #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) #define SPORTSTER_ISAC 0xC000 #define SPORTSTER_HSCXA 0x0000 #define SPORTSTER_HSCXB 0x4000 #define SPORTSTER_RES_IRQ 0x8000 #define SPORTSTER_RESET 0x80 #define SPORTSTER_INTE 0x40 static inline int calc_off(unsigned int base, unsigned int off) { return(base + ((off & 0xfc)<<8) + ((off & 3)<<1)); } 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); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (bytein(calc_off(cs->hw.spt.isac, offset))); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { byteout(calc_off(cs->hw.spt.isac, offset), value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { read_fifo(cs->hw.spt.isac, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { write_fifo(cs->hw.spt.isac, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (bytein(calc_off(cs->hw.spt.hscx[hscx], offset))); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { byteout(calc_off(cs->hw.spt.hscx[hscx], offset), value); } /* * fast interrupt HSCX stuff goes here */ #define READHSCX(cs, nr, reg) bytein(calc_off(cs->hw.spt.hscx[nr], reg)) #define WRITEHSCX(cs, nr, reg, data) byteout(calc_off(cs->hw.spt.hscx[nr], reg), data) #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.spt.hscx[nr], ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.spt.hscx[nr], ptr, cnt) #include "hscx_irq.c" static void sportster_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val; if (!cs) { printk(KERN_WARNING "Sportster: Spurious interrupt!\n"); return; } val = READHSCX(cs, 1, HSCX_ISTA); Start_HSCX: if (val) hscx_int_main(cs, val); val = ReadISAC(cs, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); val = READHSCX(cs, 1, HSCX_ISTA); if (val) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = ReadISAC(cs, ISAC_ISTA); if (val) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } /* get a new irq impulse if there any pending */ bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ +1); } void release_io_sportster(struct IsdnCardState *cs) { int i, adr; byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, 0); for (i=0; i<64; i++) { adr = cs->hw.spt.cfg_reg + i *1024; release_region(adr, 8); } } void reset_sportster(struct IsdnCardState *cs) { long flags; cs->hw.spt.res_irq |= SPORTSTER_RESET; /* Reset On */ byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq); save_flags(flags); sti(); set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout((10*HZ)/1000); cs->hw.spt.res_irq &= ~SPORTSTER_RESET; /* Reset Off */ byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq); set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout((10*HZ)/1000); restore_flags(flags); } static int Sportster_card_msg(struct IsdnCardState *cs, int mt, void *arg) { switch (mt) { case CARD_RESET: reset_sportster(cs); return(0); case CARD_RELEASE: release_io_sportster(cs); return(0); case CARD_INIT: inithscxisac(cs, 1); cs->hw.spt.res_irq |= SPORTSTER_INTE; /* IRQ On */ byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq); inithscxisac(cs, 2); return(0); case CARD_TEST: return(0); } return(0); } static int __init get_io_range(struct IsdnCardState *cs) { int i, j, adr; for (i=0;i<64;i++) { adr = cs->hw.spt.cfg_reg + i *1024; if (check_region(adr, 8)) { printk(KERN_WARNING "HiSax: %s config port %x-%x already in use\n", CardType[cs->typ], adr, adr + 8); break; } else request_region(adr, 8, "sportster"); } if (i==64) return(1); else { for (j=0; jhw.spt.cfg_reg + j *1024; release_region(adr, 8); } return(0); } } int __init setup_sportster(struct IsdnCard *card) { struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, sportster_revision); printk(KERN_INFO "HiSax: USR Sportster driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_SPORTSTER) return (0); cs->hw.spt.cfg_reg = card->para[1]; cs->irq = card->para[0]; if (!get_io_range(cs)) return (0); cs->hw.spt.isac = cs->hw.spt.cfg_reg + SPORTSTER_ISAC; cs->hw.spt.hscx[0] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXA; cs->hw.spt.hscx[1] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXB; switch(cs->irq) { case 5: cs->hw.spt.res_irq = 1; break; case 7: cs->hw.spt.res_irq = 2; break; case 10:cs->hw.spt.res_irq = 3; break; case 11:cs->hw.spt.res_irq = 4; break; case 12:cs->hw.spt.res_irq = 5; break; case 14:cs->hw.spt.res_irq = 6; break; case 15:cs->hw.spt.res_irq = 7; break; default:release_io_sportster(cs); printk(KERN_WARNING "Sportster: wrong IRQ\n"); return(0); } reset_sportster(cs); printk(KERN_INFO "HiSax: %s config irq:%d cfg:0x%X\n", CardType[cs->typ], cs->irq, cs->hw.spt.cfg_reg); 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 = &Sportster_card_msg; cs->irq_func = &sportster_interrupt; ISACVersion(cs, "Sportster:"); if (HscxVersion(cs, "Sportster:")) { printk(KERN_WARNING "Sportster: wrong HSCX versions check IO address\n"); release_io_sportster(cs); return (0); } return (1); }