cregit-Linux how code gets into the kernel

Release 4.14 drivers/isdn/hisax/teles0.c

/* $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"


static 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); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)2674.29%360.00%
Andrew Morton617.14%120.00%
Al Viro38.57%120.00%
Total35100.00%5100.00%


static inline void writeisac(void __iomem *adr, u_char off, u_char data) { writeb(data, adr + ((off & 1) ? 0x2ff : 0x100) + off); mb(); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)3378.57%466.67%
Andrew Morton614.29%116.67%
Al Viro37.14%116.67%
Total42100.00%6100.00%


static inline u_char readhscx(void __iomem *adr, int hscx, u_char off) { return readb(adr + (hscx ? 0x1c0 : 0x180) + ((off & 1) ? 0x1ff : 0) + off); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)3780.43%360.00%
Andrew Morton613.04%120.00%
Al Viro36.52%120.00%
Total46100.00%5100.00%


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(); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)4483.02%466.67%
Andrew Morton611.32%116.67%
Al Viro35.66%116.67%
Total53100.00%6100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)4173.21%240.00%
Andrew Morton1017.86%120.00%
Al Viro47.14%120.00%
Kai Germaschewski11.79%120.00%
Total56100.00%5100.00%


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(); } }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)4370.49%350.00%
Andrew Morton1321.31%116.67%
Al Viro46.56%116.67%
Kai Germaschewski11.64%116.67%
Total61100.00%6100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton5990.77%133.33%
Al Viro46.15%133.33%
Linus Torvalds (pre-git)23.08%133.33%
Total65100.00%3100.00%


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(); } }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton6594.20%150.00%
Al Viro45.80%150.00%
Total69100.00%2100.00%

/* Interface functions */
static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readisac(cs->hw.teles0.membase, offset)); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton30100.00%1100.00%
Total30100.00%1100.00%


static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writeisac(cs->hw.teles0.membase, offset, value); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton32100.00%1100.00%
Total32100.00%1100.00%


static void ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) { read_fifo_isac(cs->hw.teles0.membase, data, size); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton33100.00%1100.00%
Total33100.00%1100.00%


static void WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) { write_fifo_isac(cs->hw.teles0.membase, data, size); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton33100.00%1100.00%
Total33100.00%1100.00%


static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readhscx(cs->hw.teles0.membase, hscx, offset)); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton35100.00%1100.00%
Total35100.00%1100.00%


static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writehscx(cs->hw.teles0.membase, hscx, offset, value); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton37100.00%1100.00%
Total37100.00%1100.00%

/* * 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 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; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton301100.00%1100.00%
Total301100.00%1100.00%


static 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); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton5391.38%125.00%
Linus Torvalds (pre-git)46.90%250.00%
Adrian Bunk11.72%125.00%
Total58100.00%4100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton22395.30%125.00%
Linus Torvalds (pre-git)114.70%375.00%
Total234100.00%4100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton10183.47%125.00%
Linus Torvalds (pre-git)2016.53%375.00%
Total121100.00%4100.00%


int 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); }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton45564.36%19.09%
Linus Torvalds (pre-git)18225.74%436.36%
Kai Germaschewski669.34%218.18%
Greg Kroah-Hartman10.14%19.09%
Al Viro10.14%19.09%
William Stinson10.14%19.09%
Joe Perches10.14%19.09%
Total707100.00%11100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton156072.66%17.14%
Linus Torvalds (pre-git)48322.50%642.86%
Kai Germaschewski683.17%214.29%
Al Viro291.35%17.14%
Joe Perches30.14%17.14%
Adrian Bunk20.09%17.14%
Greg Kroah-Hartman10.05%17.14%
William Stinson10.05%17.14%
Total2147100.00%14100.00%
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