1/* $Id: teles0.c,v 2.15.2.4 2004/01/13 23:48:39 Exp $ 2 * 3 * low level stuff for Teles Memory IO isdn cards 4 * 5 * Author Karsten Keil 6 * based on the teles driver from Jan den Ouden 7 * Copyright by Karsten Keil <keil@isdn4linux.de> 8 * 9 * This software may be used and distributed according to the terms 10 * of the GNU General Public License, incorporated herein by reference. 11 * 12 * Thanks to Jan den Ouden 13 * Fritz Elfert 14 * Beat Doebeli 15 * 16 */ 17 18#include <linux/init.h> 19#include "hisax.h" 20#include "isdnl1.h" 21#include "isac.h" 22#include "hscx.h" 23 24static const char *teles0_revision = "$Revision: 2.15.2.4 $"; 25 26#define TELES_IOMEM_SIZE 0x400 27#define byteout(addr,val) outb(val,addr) 28#define bytein(addr) inb(addr) 29 30static inline u_char 31readisac(void __iomem *adr, u_char off) 32{ 33 return readb(adr + ((off & 1) ? 0x2ff : 0x100) + off); 34} 35 36static inline void 37writeisac(void __iomem *adr, u_char off, u_char data) 38{ 39 writeb(data, adr + ((off & 1) ? 0x2ff : 0x100) + off); mb(); 40} 41 42 43static inline u_char 44readhscx(void __iomem *adr, int hscx, u_char off) 45{ 46 return readb(adr + (hscx ? 0x1c0 : 0x180) + 47 ((off & 1) ? 0x1ff : 0) + off); 48} 49 50static inline void 51writehscx(void __iomem *adr, int hscx, u_char off, u_char data) 52{ 53 writeb(data, adr + (hscx ? 0x1c0 : 0x180) + 54 ((off & 1) ? 0x1ff : 0) + off); mb(); 55} 56 57static inline void 58read_fifo_isac(void __iomem *adr, u_char * data, int size) 59{ 60 register int i; 61 register u_char __iomem *ad = adr + 0x100; 62 for (i = 0; i < size; i++) 63 data[i] = readb(ad); 64} 65 66static inline void 67write_fifo_isac(void __iomem *adr, u_char * data, int size) 68{ 69 register int i; 70 register u_char __iomem *ad = adr + 0x100; 71 for (i = 0; i < size; i++) { 72 writeb(data[i], ad); mb(); 73 } 74} 75 76static inline void 77read_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size) 78{ 79 register int i; 80 register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180); 81 for (i = 0; i < size; i++) 82 data[i] = readb(ad); 83} 84 85static inline void 86write_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size) 87{ 88 int i; 89 register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180); 90 for (i = 0; i < size; i++) { 91 writeb(data[i], ad); mb(); 92 } 93} 94 95/* Interface functions */ 96 97static u_char 98ReadISAC(struct IsdnCardState *cs, u_char offset) 99{ 100 return (readisac(cs->hw.teles0.membase, offset)); 101} 102 103static void 104WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) 105{ 106 writeisac(cs->hw.teles0.membase, offset, value); 107} 108 109static void 110ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) 111{ 112 read_fifo_isac(cs->hw.teles0.membase, data, size); 113} 114 115static void 116WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) 117{ 118 write_fifo_isac(cs->hw.teles0.membase, data, size); 119} 120 121static u_char 122ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) 123{ 124 return (readhscx(cs->hw.teles0.membase, hscx, offset)); 125} 126 127static void 128WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) 129{ 130 writehscx(cs->hw.teles0.membase, hscx, offset, value); 131} 132 133/* 134 * fast interrupt HSCX stuff goes here 135 */ 136 137#define READHSCX(cs, nr, reg) readhscx(cs->hw.teles0.membase, nr, reg) 138#define WRITEHSCX(cs, nr, reg, data) writehscx(cs->hw.teles0.membase, nr, reg, data) 139#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt) 140#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt) 141 142#include "hscx_irq.c" 143 144static irqreturn_t 145teles0_interrupt(int intno, void *dev_id) 146{ 147 struct IsdnCardState *cs = dev_id; 148 u_char val; 149 u_long flags; 150 int count = 0; 151 152 spin_lock_irqsave(&cs->lock, flags); 153 val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); 154 Start_HSCX: 155 if (val) 156 hscx_int_main(cs, val); 157 val = readisac(cs->hw.teles0.membase, ISAC_ISTA); 158 Start_ISAC: 159 if (val) 160 isac_interrupt(cs, val); 161 count++; 162 val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); 163 if (val && count < 5) { 164 if (cs->debug & L1_DEB_HSCX) 165 debugl1(cs, "HSCX IntStat after IntRoutine"); 166 goto Start_HSCX; 167 } 168 val = readisac(cs->hw.teles0.membase, ISAC_ISTA); 169 if (val && count < 5) { 170 if (cs->debug & L1_DEB_ISAC) 171 debugl1(cs, "ISAC IntStat after IntRoutine"); 172 goto Start_ISAC; 173 } 174 writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF); 175 writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF); 176 writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF); 177 writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0); 178 writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0); 179 writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0); 180 spin_unlock_irqrestore(&cs->lock, flags); 181 return IRQ_HANDLED; 182} 183 184static void 185release_io_teles0(struct IsdnCardState *cs) 186{ 187 if (cs->hw.teles0.cfg_reg) 188 release_region(cs->hw.teles0.cfg_reg, 8); 189 iounmap(cs->hw.teles0.membase); 190 release_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE); 191} 192 193static int 194reset_teles0(struct IsdnCardState *cs) 195{ 196 u_char cfval; 197 198 if (cs->hw.teles0.cfg_reg) { 199 switch (cs->irq) { 200 case 2: 201 case 9: 202 cfval = 0x00; 203 break; 204 case 3: 205 cfval = 0x02; 206 break; 207 case 4: 208 cfval = 0x04; 209 break; 210 case 5: 211 cfval = 0x06; 212 break; 213 case 10: 214 cfval = 0x08; 215 break; 216 case 11: 217 cfval = 0x0A; 218 break; 219 case 12: 220 cfval = 0x0C; 221 break; 222 case 15: 223 cfval = 0x0E; 224 break; 225 default: 226 return(1); 227 } 228 cfval |= ((cs->hw.teles0.phymem >> 9) & 0xF0); 229 byteout(cs->hw.teles0.cfg_reg + 4, cfval); 230 HZDELAY(HZ / 10 + 1); 231 byteout(cs->hw.teles0.cfg_reg + 4, cfval | 1); 232 HZDELAY(HZ / 10 + 1); 233 } 234 writeb(0, cs->hw.teles0.membase + 0x80); mb(); 235 HZDELAY(HZ / 5 + 1); 236 writeb(1, cs->hw.teles0.membase + 0x80); mb(); 237 HZDELAY(HZ / 5 + 1); 238 return(0); 239} 240 241static int 242Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg) 243{ 244 u_long flags; 245 246 switch (mt) { 247 case CARD_RESET: 248 spin_lock_irqsave(&cs->lock, flags); 249 reset_teles0(cs); 250 spin_unlock_irqrestore(&cs->lock, flags); 251 return(0); 252 case CARD_RELEASE: 253 release_io_teles0(cs); 254 return(0); 255 case CARD_INIT: 256 spin_lock_irqsave(&cs->lock, flags); 257 inithscxisac(cs, 3); 258 spin_unlock_irqrestore(&cs->lock, flags); 259 return(0); 260 case CARD_TEST: 261 return(0); 262 } 263 return(0); 264} 265 266int __devinit 267setup_teles0(struct IsdnCard *card) 268{ 269 u_char val; 270 struct IsdnCardState *cs = card->cs; 271 char tmp[64]; 272 273 strcpy(tmp, teles0_revision); 274 printk(KERN_INFO "HiSax: Teles 8.0/16.0 driver Rev. %s\n", HiSax_getrev(tmp)); 275 if ((cs->typ != ISDN_CTYPE_16_0) && (cs->typ != ISDN_CTYPE_8_0)) 276 return (0); 277 278 if (cs->typ == ISDN_CTYPE_16_0) 279 cs->hw.teles0.cfg_reg = card->para[2]; 280 else /* 8.0 */ 281 cs->hw.teles0.cfg_reg = 0; 282 283 if (card->para[1] < 0x10000) { 284 card->para[1] <<= 4; 285 printk(KERN_INFO 286 "Teles0: membase configured DOSish, assuming 0x%lx\n", 287 (unsigned long) card->para[1]); 288 } 289 cs->irq = card->para[0]; 290 if (cs->hw.teles0.cfg_reg) { 291 if (!request_region(cs->hw.teles0.cfg_reg, 8, "teles cfg")) { 292 printk(KERN_WARNING 293 "HiSax: %s config port %x-%x already in use\n", 294 CardType[card->typ], 295 cs->hw.teles0.cfg_reg, 296 cs->hw.teles0.cfg_reg + 8); 297 return (0); 298 } 299 } 300 if (cs->hw.teles0.cfg_reg) { 301 if ((val = bytein(cs->hw.teles0.cfg_reg + 0)) != 0x51) { 302 printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n", 303 cs->hw.teles0.cfg_reg + 0, val); 304 release_region(cs->hw.teles0.cfg_reg, 8); 305 return (0); 306 } 307 if ((val = bytein(cs->hw.teles0.cfg_reg + 1)) != 0x93) { 308 printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n", 309 cs->hw.teles0.cfg_reg + 1, val); 310 release_region(cs->hw.teles0.cfg_reg, 8); 311 return (0); 312 } 313 val = bytein(cs->hw.teles0.cfg_reg + 2); /* 0x1e=without AB 314 * 0x1f=with AB 315 * 0x1c 16.3 ??? 316 */ 317 if (val != 0x1e && val != 0x1f) { 318 printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n", 319 cs->hw.teles0.cfg_reg + 2, val); 320 release_region(cs->hw.teles0.cfg_reg, 8); 321 return (0); 322 } 323 } 324 /* 16.0 and 8.0 designed for IOM1 */ 325 test_and_set_bit(HW_IOM1, &cs->HW_Flags); 326 cs->hw.teles0.phymem = card->para[1]; 327 if (!request_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE, "teles iomem")) { 328 printk(KERN_WARNING 329 "HiSax: %s memory region %lx-%lx already in use\n", 330 CardType[card->typ], 331 cs->hw.teles0.phymem, 332 cs->hw.teles0.phymem + TELES_IOMEM_SIZE); 333 if (cs->hw.teles0.cfg_reg) 334 release_region(cs->hw.teles0.cfg_reg, 8); 335 return (0); 336 } 337 cs->hw.teles0.membase = ioremap(cs->hw.teles0.phymem, TELES_IOMEM_SIZE); 338 printk(KERN_INFO 339 "HiSax: %s config irq:%d mem:%p cfg:0x%X\n", 340 CardType[cs->typ], cs->irq, 341 cs->hw.teles0.membase, cs->hw.teles0.cfg_reg); 342 if (reset_teles0(cs)) { 343 printk(KERN_WARNING "Teles0: wrong IRQ\n"); 344 release_io_teles0(cs); 345 return (0); 346 } 347 setup_isac(cs); 348 cs->readisac = &ReadISAC; 349 cs->writeisac = &WriteISAC; 350 cs->readisacfifo = &ReadISACfifo; 351 cs->writeisacfifo = &WriteISACfifo; 352 cs->BC_Read_Reg = &ReadHSCX; 353 cs->BC_Write_Reg = &WriteHSCX; 354 cs->BC_Send_Data = &hscx_fill_fifo; 355 cs->cardmsg = &Teles_card_msg; 356 cs->irq_func = &teles0_interrupt; 357 ISACVersion(cs, "Teles0:"); 358 if (HscxVersion(cs, "Teles0:")) { 359 printk(KERN_WARNING 360 "Teles0: wrong HSCX versions check IO/MEM addresses\n"); 361 release_io_teles0(cs); 362 return (0); 363 } 364 return (1); 365} 366