1 /* $Id: teleint.c,v 1.1.4.1 2001/11/20 14:19:36 kai Exp $
3 * low level stuff for TeleInt isdn cards
6 * Copyright by Karsten Keil <keil@isdn4linux.de>
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
13 #define __NO_VERSION__
14 #include <linux/init.h>
20 extern const char *CardType[];
22 const char *TeleInt_revision = "$Revision: 1.1.4.1 $";
24 #define byteout(addr,val) outb(val,addr)
25 #define bytein(addr) inb(addr)
28 readreg(unsigned int ale, unsigned int adr, u_char off)
37 ret = HFC_BUSY & bytein(ale);
38 while (ret && --max_delay)
39 ret = HFC_BUSY & bytein(ale);
41 printk(KERN_WARNING "TeleInt Busy not inactive\n");
51 readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
54 register int max_delay = 20000;
58 for (i = 0; i<size; i++) {
59 ret = HFC_BUSY & bytein(ale);
60 while (ret && --max_delay)
61 ret = HFC_BUSY & bytein(ale);
63 printk(KERN_WARNING "TeleInt Busy not inactive\n");
66 data[i] = bytein(adr);
72 writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
81 ret = HFC_BUSY & bytein(ale);
82 while (ret && --max_delay)
83 ret = HFC_BUSY & bytein(ale);
85 printk(KERN_WARNING "TeleInt Busy not inactive\n");
94 writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
97 register int max_delay = 20000;
100 /* fifo write without cli because it's allready done */
102 for (i = 0; i<size; i++) {
103 ret = HFC_BUSY & bytein(ale);
104 while (ret && --max_delay)
105 ret = HFC_BUSY & bytein(ale);
107 printk(KERN_WARNING "TeleInt Busy not inactive\n");
110 byteout(adr, data[i]);
114 /* Interface functions */
117 ReadISAC(struct IsdnCardState *cs, u_char offset)
119 cs->hw.hfc.cip = offset;
120 return (readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, offset));
124 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
126 cs->hw.hfc.cip = offset;
127 writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, offset, value);
131 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
134 readfifo(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, 0, data, size);
138 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
141 writefifo(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, 0, data, size);
145 ReadHFC(struct IsdnCardState *cs, int data, u_char reg)
150 cs->hw.hfc.cip = reg;
151 byteout(cs->hw.hfc.addr | 1, reg);
152 ret = bytein(cs->hw.hfc.addr);
153 if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
154 debugl1(cs, "hfc RD %02x %02x", reg, ret);
156 ret = bytein(cs->hw.hfc.addr | 1);
161 WriteHFC(struct IsdnCardState *cs, int data, u_char reg, u_char value)
163 byteout(cs->hw.hfc.addr | 1, reg);
164 cs->hw.hfc.cip = reg;
166 byteout(cs->hw.hfc.addr, value);
167 if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
168 debugl1(cs, "hfc W%c %02x %02x", data ? 'D' : 'C', reg, value);
172 TeleInt_interrupt(int intno, void *dev_id, struct pt_regs *regs)
174 struct IsdnCardState *cs = dev_id;
178 printk(KERN_WARNING "TeleInt: Spurious interrupt!\n");
181 val = readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_ISTA);
184 isac_interrupt(cs, val);
185 val = readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_ISTA);
187 if (cs->debug & L1_DEB_ISAC)
188 debugl1(cs, "ISAC IntStat after IntRoutine");
191 writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0xFF);
192 writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0x0);
196 TeleInt_Timer(struct IsdnCardState *cs)
200 if (cs->bcs[0].mode) {
202 main_irq_hfc(&cs->bcs[0]);
204 if (cs->bcs[1].mode) {
206 main_irq_hfc(&cs->bcs[1]);
208 cs->hw.hfc.timer.expires = jiffies + 1;
209 add_timer(&cs->hw.hfc.timer);
213 release_io_TeleInt(struct IsdnCardState *cs)
215 del_timer(&cs->hw.hfc.timer);
218 release_region(cs->hw.hfc.addr, 2);
222 reset_TeleInt(struct IsdnCardState *cs)
226 printk(KERN_INFO "TeleInt: resetting card\n");
227 cs->hw.hfc.cirm |= HFC_RESET;
228 byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm); /* Reset On */
231 set_current_state(TASK_UNINTERRUPTIBLE);
232 schedule_timeout((30*HZ)/1000);
233 cs->hw.hfc.cirm &= ~HFC_RESET;
234 byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm); /* Reset Off */
235 set_current_state(TASK_UNINTERRUPTIBLE);
236 schedule_timeout((10*HZ)/1000);
237 restore_flags(flags);
241 TeleInt_card_msg(struct IsdnCardState *cs, int mt, void *arg)
248 release_io_TeleInt(cs);
252 clear_pending_isac_ints(cs);
254 /* Reenable all IRQ */
255 cs->writeisac(cs, ISAC_MASK, 0);
256 cs->writeisac(cs, ISAC_CMDR, 0x41);
257 cs->hw.hfc.timer.expires = jiffies + 1;
258 add_timer(&cs->hw.hfc.timer);
267 setup_TeleInt(struct IsdnCard *card)
269 struct IsdnCardState *cs = card->cs;
272 strcpy(tmp, TeleInt_revision);
273 printk(KERN_INFO "HiSax: TeleInt driver Rev. %s\n", HiSax_getrev(tmp));
274 if (cs->typ != ISDN_CTYPE_TELEINT)
277 cs->hw.hfc.addr = card->para[1] & 0x3fe;
278 cs->irq = card->para[0];
279 cs->hw.hfc.cirm = HFC_CIRM;
280 cs->hw.hfc.isac_spcr = 0x00;
282 cs->hw.hfc.ctmt = HFC_CTMT | HFC_CLTIMER;
283 cs->bcs[0].hw.hfc.send = NULL;
284 cs->bcs[1].hw.hfc.send = NULL;
285 cs->hw.hfc.fifosize = 7 * 1024 + 512;
286 cs->hw.hfc.timer.function = (void *) TeleInt_Timer;
287 cs->hw.hfc.timer.data = (long) cs;
288 init_timer(&cs->hw.hfc.timer);
289 if (check_region((cs->hw.hfc.addr), 2)) {
291 "HiSax: %s config port %x-%x already in use\n",
294 cs->hw.hfc.addr + 2);
297 request_region(cs->hw.hfc.addr, 2, "TeleInt isdn");
300 byteout(cs->hw.hfc.addr, cs->hw.hfc.addr & 0xff);
301 byteout(cs->hw.hfc.addr | 1, ((cs->hw.hfc.addr & 0x300) >> 8) | 0x54);
304 cs->hw.hfc.cirm |= HFC_INTA;
307 cs->hw.hfc.cirm |= HFC_INTB;
310 cs->hw.hfc.cirm |= HFC_INTC;
313 cs->hw.hfc.cirm |= HFC_INTD;
316 cs->hw.hfc.cirm |= HFC_INTE;
319 cs->hw.hfc.cirm |= HFC_INTF;
322 printk(KERN_WARNING "TeleInt: wrong IRQ\n");
323 release_io_TeleInt(cs);
326 byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm);
327 byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.ctmt);
330 "TeleInt: defined at 0x%x IRQ %d\n",
335 cs->readisac = &ReadISAC;
336 cs->writeisac = &WriteISAC;
337 cs->readisacfifo = &ReadISACfifo;
338 cs->writeisacfifo = &WriteISACfifo;
339 cs->BC_Read_Reg = &ReadHFC;
340 cs->BC_Write_Reg = &WriteHFC;
341 cs->cardmsg = &TeleInt_card_msg;
342 cs->irq_func = &TeleInt_interrupt;
343 ISACVersion(cs, "TeleInt:");