[ISDN] Hisax: eliminate many unnecessary references to CardType[]
[linux-2.6.git] / drivers / isdn / hisax / niccy.c
1 /* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $
2  *
3  * low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
4  * compatible (SAGEM cybermodem)
5  *
6  * Author       Karsten Keil
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 Dr. Neuhaus and SAGEM for information
13  *
14  */
15
16 #include <linux/init.h>
17 #include "hisax.h"
18 #include "isac.h"
19 #include "hscx.h"
20 #include "isdnl1.h"
21 #include <linux/pci.h>
22 #include <linux/isapnp.h>
23
24 static const char *niccy_revision = "$Revision: 1.21.2.4 $";
25
26 #define byteout(addr,val) outb(val,addr)
27 #define bytein(addr) inb(addr)
28
29 #define ISAC_PCI_DATA   0
30 #define HSCX_PCI_DATA   1
31 #define ISAC_PCI_ADDR   2
32 #define HSCX_PCI_ADDR   3
33 #define ISAC_PNP        0
34 #define HSCX_PNP        1
35
36 /* SUB Types */
37 #define NICCY_PNP       1
38 #define NICCY_PCI       2
39
40 /* PCI stuff */
41 #define PCI_IRQ_CTRL_REG        0x38
42 #define PCI_IRQ_ENABLE          0x1f00
43 #define PCI_IRQ_DISABLE         0xff0000
44 #define PCI_IRQ_ASSERT          0x800000
45
46 static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off)
47 {
48         register u_char ret;
49
50         byteout(ale, off);
51         ret = bytein(adr);
52         return ret;
53 }
54
55 static inline void readfifo(unsigned int ale, unsigned int adr, u_char off,
56                 u_char *data, int size)
57 {
58         byteout(ale, off);
59         insb(adr, data, size);
60 }
61
62 static inline void writereg(unsigned int ale, unsigned int adr, u_char off,
63                 u_char data)
64 {
65         byteout(ale, off);
66         byteout(adr, data);
67 }
68
69 static inline void writefifo(unsigned int ale, unsigned int adr, u_char off,
70                 u_char *data, int size)
71 {
72         byteout(ale, off);
73         outsb(adr, data, size);
74 }
75
76 /* Interface functions */
77
78 static u_char ReadISAC(struct IsdnCardState *cs, u_char offset)
79 {
80         return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset);
81 }
82
83 static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
84 {
85         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
86 }
87
88 static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
89 {
90         readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
91 }
92
93 static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
94 {
95         writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
96 }
97
98 static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
99 {
100         return readreg(cs->hw.niccy.hscx_ale,
101                         cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0));
102 }
103
104 static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset,
105                 u_char value)
106 {
107         writereg(cs->hw.niccy.hscx_ale,
108                  cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
109 }
110
111 #define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
112                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
113 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
114                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
115
116 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
117                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
118
119 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
120                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
121
122 #include "hscx_irq.c"
123
124 static irqreturn_t niccy_interrupt(int intno, void *dev_id)
125 {
126         struct IsdnCardState *cs = dev_id;
127         u_char val;
128         u_long flags;
129
130         spin_lock_irqsave(&cs->lock, flags);
131         if (cs->subtyp == NICCY_PCI) {
132                 int ival;
133                 ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
134                 if (!(ival & PCI_IRQ_ASSERT)) { /* IRQ not for us (shared) */
135                         spin_unlock_irqrestore(&cs->lock, flags);
136                         return IRQ_NONE;
137                 }
138                 outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
139         }
140         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
141                         HSCX_ISTA + 0x40);
142 Start_HSCX:
143         if (val)
144                 hscx_int_main(cs, val);
145         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
146 Start_ISAC:
147         if (val)
148                 isac_interrupt(cs, val);
149         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
150                         HSCX_ISTA + 0x40);
151         if (val) {
152                 if (cs->debug & L1_DEB_HSCX)
153                         debugl1(cs, "HSCX IntStat after IntRoutine");
154                 goto Start_HSCX;
155         }
156         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
157         if (val) {
158                 if (cs->debug & L1_DEB_ISAC)
159                         debugl1(cs, "ISAC IntStat after IntRoutine");
160                 goto Start_ISAC;
161         }
162         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
163         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,
164                  0xFF);
165         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
166         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
167         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
168         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,0);
169         spin_unlock_irqrestore(&cs->lock, flags);
170         return IRQ_HANDLED;
171 }
172
173 static void release_io_niccy(struct IsdnCardState *cs)
174 {
175         if (cs->subtyp == NICCY_PCI) {
176                 int val;
177
178                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
179                 val &= PCI_IRQ_DISABLE;
180                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
181                 release_region(cs->hw.niccy.cfg_reg, 0x40);
182                 release_region(cs->hw.niccy.isac, 4);
183         } else {
184                 release_region(cs->hw.niccy.isac, 2);
185                 release_region(cs->hw.niccy.isac_ale, 2);
186         }
187 }
188
189 static void niccy_reset(struct IsdnCardState *cs)
190 {
191         if (cs->subtyp == NICCY_PCI) {
192                 int val;
193
194                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
195                 val |= PCI_IRQ_ENABLE;
196                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
197         }
198         inithscxisac(cs, 3);
199 }
200
201 static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
202 {
203         u_long flags;
204
205         switch (mt) {
206         case CARD_RESET:
207                 spin_lock_irqsave(&cs->lock, flags);
208                 niccy_reset(cs);
209                 spin_unlock_irqrestore(&cs->lock, flags);
210                 return 0;
211         case CARD_RELEASE:
212                 release_io_niccy(cs);
213                 return 0;
214         case CARD_INIT:
215                 spin_lock_irqsave(&cs->lock, flags);
216                 niccy_reset(cs);
217                 spin_unlock_irqrestore(&cs->lock, flags);
218                 return 0;
219         case CARD_TEST:
220                 return 0;
221         }
222         return 0;
223 }
224
225 #ifdef __ISAPNP__
226 static struct pnp_card *pnp_c __devinitdata = NULL;
227 #endif
228
229 int __devinit setup_niccy(struct IsdnCard *card)
230 {
231         struct IsdnCardState *cs = card->cs;
232         char tmp[64];
233
234         strcpy(tmp, niccy_revision);
235         printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
236         if (cs->typ != ISDN_CTYPE_NICCY)
237                 return 0;
238 #ifdef __ISAPNP__
239         if (!card->para[1] && isapnp_present()) {
240                 struct pnp_dev *pnp_d = NULL;
241                 int err;
242
243                 pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'),
244                                 ISAPNP_FUNCTION(0x0150), pnp_c);
245                 if (pnp_c) {
246                         pnp_d = pnp_find_dev(pnp_c,
247                                         ISAPNP_VENDOR('S', 'D', 'A'),
248                                         ISAPNP_FUNCTION(0x0150), pnp_d);
249                         if (!pnp_d) {
250                                 printk(KERN_ERR "NiccyPnP: PnP error card "
251                                         "found, no device\n");
252                                 return 0;
253                         }
254                         pnp_disable_dev(pnp_d);
255                         err = pnp_activate_dev(pnp_d);
256                         if (err < 0) {
257                                 printk(KERN_WARNING "%s: pnp_activate_dev "
258                                         "ret(%d)\n", __FUNCTION__, err);
259                                 return 0;
260                         }
261                         card->para[1] = pnp_port_start(pnp_d, 0);
262                         card->para[2] = pnp_port_start(pnp_d, 1);
263                         card->para[0] = pnp_irq(pnp_d, 0);
264                         if (!card->para[0] || !card->para[1] ||
265                                         !card->para[2]) {
266                                 printk(KERN_ERR "NiccyPnP:some resources are "
267                                         "missing %ld/%lx/%lx\n",
268                                         card->para[0], card->para[1],
269                                         card->para[2]);
270                                 pnp_disable_dev(pnp_d);
271                                 return 0;
272                         }
273                 } else
274                         printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
275         }
276 #endif
277         if (card->para[1]) {
278                 cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
279                 cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
280                 cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
281                 cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
282                 cs->hw.niccy.cfg_reg = 0;
283                 cs->subtyp = NICCY_PNP;
284                 cs->irq = card->para[0];
285                 if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
286                         printk(KERN_WARNING "HiSax: NICCY data port %x-%x "
287                                 "already in use\n",
288                                 cs->hw.niccy.isac, cs->hw.niccy.isac + 1);
289                         return 0;
290                 }
291                 if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
292                         printk(KERN_WARNING "HiSax: NICCY address port %x-%x "
293                                 "already in use\n",
294                                 cs->hw.niccy.isac_ale,
295                                 cs->hw.niccy.isac_ale + 1);
296                         release_region(cs->hw.niccy.isac, 2);
297                         return 0;
298                 }
299         } else {
300 #ifdef CONFIG_PCI_LEGACY
301                 static struct pci_dev *niccy_dev __devinitdata;
302
303                 u_int pci_ioaddr;
304                 cs->subtyp = 0;
305                 if ((niccy_dev = pci_find_device(PCI_VENDOR_ID_SATSAGEM,
306                                                  PCI_DEVICE_ID_SATSAGEM_NICCY,
307                                                  niccy_dev))) {
308                         if (pci_enable_device(niccy_dev))
309                                 return 0;
310                         /* get IRQ */
311                         if (!niccy_dev->irq) {
312                                 printk(KERN_WARNING
313                                        "Niccy: No IRQ for PCI card found\n");
314                                 return 0;
315                         }
316                         cs->irq = niccy_dev->irq;
317                         cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
318                         if (!cs->hw.niccy.cfg_reg) {
319                                 printk(KERN_WARNING
320                                        "Niccy: No IO-Adr for PCI cfg found\n");
321                                 return 0;
322                         }
323                         pci_ioaddr = pci_resource_start(niccy_dev, 1);
324                         if (!pci_ioaddr) {
325                                 printk(KERN_WARNING
326                                        "Niccy: No IO-Adr for PCI card found\n");
327                                 return 0;
328                         }
329                         cs->subtyp = NICCY_PCI;
330                 } else {
331                         printk(KERN_WARNING "Niccy: No PCI card found\n");
332                         return 0;
333                 }
334                 cs->irq_flags |= IRQF_SHARED;
335                 cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
336                 cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
337                 cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
338                 cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
339                 if (!request_region(cs->hw.niccy.isac, 4, "niccy")) {
340                         printk(KERN_WARNING
341                                "HiSax: NICCY data port %x-%x already in use\n",
342                                cs->hw.niccy.isac, cs->hw.niccy.isac + 4);
343                         return 0;
344                 }
345                 if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
346                         printk(KERN_WARNING
347                                "HiSax: NICCY pci port %x-%x already in use\n",
348                                cs->hw.niccy.cfg_reg,
349                                cs->hw.niccy.cfg_reg + 0x40);
350                         release_region(cs->hw.niccy.isac, 4);
351                         return 0;
352                 }
353 #else
354                 printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
355                 printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
356                 return 0;
357 #endif                          /* CONFIG_PCI_LEGACY */
358         }
359         printk(KERN_INFO "HiSax: NICCY %s config irq:%d data:0x%X ale:0x%X\n",
360                 (cs->subtyp == 1) ? "PnP" : "PCI",
361                 cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
362         setup_isac(cs);
363         cs->readisac = &ReadISAC;
364         cs->writeisac = &WriteISAC;
365         cs->readisacfifo = &ReadISACfifo;
366         cs->writeisacfifo = &WriteISACfifo;
367         cs->BC_Read_Reg = &ReadHSCX;
368         cs->BC_Write_Reg = &WriteHSCX;
369         cs->BC_Send_Data = &hscx_fill_fifo;
370         cs->cardmsg = &niccy_card_msg;
371         cs->irq_func = &niccy_interrupt;
372         ISACVersion(cs, "Niccy:");
373         if (HscxVersion(cs, "Niccy:")) {
374                 printk(KERN_WARNING "Niccy: wrong HSCX versions check IO "
375                         "address\n");
376                 release_io_niccy(cs);
377                 return 0;
378         }
379         return 1;
380 }