Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-2.6] / 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 extern const char *CardType[];
25 static const char *niccy_revision = "$Revision: 1.21.2.4 $";
26
27 #define byteout(addr,val) outb(val,addr)
28 #define bytein(addr) inb(addr)
29
30 #define ISAC_PCI_DATA   0
31 #define HSCX_PCI_DATA   1
32 #define ISAC_PCI_ADDR   2
33 #define HSCX_PCI_ADDR   3
34 #define ISAC_PNP        0
35 #define HSCX_PNP        1
36
37 /* SUB Types */
38 #define NICCY_PNP       1
39 #define NICCY_PCI       2
40
41 /* PCI stuff */
42 #define PCI_IRQ_CTRL_REG        0x38
43 #define PCI_IRQ_ENABLE          0x1f00
44 #define PCI_IRQ_DISABLE         0xff0000
45 #define PCI_IRQ_ASSERT          0x800000
46
47 static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off)
48 {
49         register u_char ret;
50
51         byteout(ale, off);
52         ret = bytein(adr);
53         return ret;
54 }
55
56 static inline void readfifo(unsigned int ale, unsigned int adr, u_char off,
57                 u_char *data, int size)
58 {
59         byteout(ale, off);
60         insb(adr, data, size);
61 }
62
63 static inline void writereg(unsigned int ale, unsigned int adr, u_char off,
64                 u_char data)
65 {
66         byteout(ale, off);
67         byteout(adr, data);
68 }
69
70 static inline void writefifo(unsigned int ale, unsigned int adr, u_char off,
71                 u_char *data, int size)
72 {
73         byteout(ale, off);
74         outsb(adr, data, size);
75 }
76
77 /* Interface functions */
78
79 static u_char ReadISAC(struct IsdnCardState *cs, u_char offset)
80 {
81         return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset);
82 }
83
84 static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
85 {
86         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
87 }
88
89 static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
90 {
91         readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
92 }
93
94 static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
95 {
96         writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
97 }
98
99 static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
100 {
101         return readreg(cs->hw.niccy.hscx_ale,
102                         cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0));
103 }
104
105 static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset,
106                 u_char value)
107 {
108         writereg(cs->hw.niccy.hscx_ale,
109                  cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
110 }
111
112 #define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
113                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
114 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
115                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
116
117 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
118                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
119
120 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
121                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
122
123 #include "hscx_irq.c"
124
125 static irqreturn_t niccy_interrupt(int intno, void *dev_id)
126 {
127         struct IsdnCardState *cs = dev_id;
128         u_char val;
129         u_long flags;
130
131         spin_lock_irqsave(&cs->lock, flags);
132         if (cs->subtyp == NICCY_PCI) {
133                 int ival;
134                 ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
135                 if (!(ival & PCI_IRQ_ASSERT)) { /* IRQ not for us (shared) */
136                         spin_unlock_irqrestore(&cs->lock, flags);
137                         return IRQ_NONE;
138                 }
139                 outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
140         }
141         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
142                         HSCX_ISTA + 0x40);
143 Start_HSCX:
144         if (val)
145                 hscx_int_main(cs, val);
146         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
147 Start_ISAC:
148         if (val)
149                 isac_interrupt(cs, val);
150         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
151                         HSCX_ISTA + 0x40);
152         if (val) {
153                 if (cs->debug & L1_DEB_HSCX)
154                         debugl1(cs, "HSCX IntStat after IntRoutine");
155                 goto Start_HSCX;
156         }
157         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
158         if (val) {
159                 if (cs->debug & L1_DEB_ISAC)
160                         debugl1(cs, "ISAC IntStat after IntRoutine");
161                 goto Start_ISAC;
162         }
163         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
164         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,
165                  0xFF);
166         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
167         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
168         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
169         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,0);
170         spin_unlock_irqrestore(&cs->lock, flags);
171         return IRQ_HANDLED;
172 }
173
174 static void release_io_niccy(struct IsdnCardState *cs)
175 {
176         if (cs->subtyp == NICCY_PCI) {
177                 int val;
178
179                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
180                 val &= PCI_IRQ_DISABLE;
181                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
182                 release_region(cs->hw.niccy.cfg_reg, 0x40);
183                 release_region(cs->hw.niccy.isac, 4);
184         } else {
185                 release_region(cs->hw.niccy.isac, 2);
186                 release_region(cs->hw.niccy.isac_ale, 2);
187         }
188 }
189
190 static void niccy_reset(struct IsdnCardState *cs)
191 {
192         if (cs->subtyp == NICCY_PCI) {
193                 int val;
194
195                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
196                 val |= PCI_IRQ_ENABLE;
197                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
198         }
199         inithscxisac(cs, 3);
200 }
201
202 static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
203 {
204         u_long flags;
205
206         switch (mt) {
207         case CARD_RESET:
208                 spin_lock_irqsave(&cs->lock, flags);
209                 niccy_reset(cs);
210                 spin_unlock_irqrestore(&cs->lock, flags);
211                 return 0;
212         case CARD_RELEASE:
213                 release_io_niccy(cs);
214                 return 0;
215         case CARD_INIT:
216                 spin_lock_irqsave(&cs->lock, flags);
217                 niccy_reset(cs);
218                 spin_unlock_irqrestore(&cs->lock, flags);
219                 return 0;
220         case CARD_TEST:
221                 return 0;
222         }
223         return 0;
224 }
225
226 #ifdef __ISAPNP__
227 static struct pnp_card *pnp_c __devinitdata = NULL;
228 #endif
229
230 int __devinit setup_niccy(struct IsdnCard *card)
231 {
232         struct IsdnCardState *cs = card->cs;
233         char tmp[64];
234
235         strcpy(tmp, niccy_revision);
236         printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
237         if (cs->typ != ISDN_CTYPE_NICCY)
238                 return 0;
239 #ifdef __ISAPNP__
240         if (!card->para[1] && isapnp_present()) {
241                 struct pnp_dev *pnp_d = NULL;
242                 int err;
243
244                 pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'),
245                                 ISAPNP_FUNCTION(0x0150), pnp_c);
246                 if (pnp_c) {
247                         pnp_d = pnp_find_dev(pnp_c,
248                                         ISAPNP_VENDOR('S', 'D', 'A'),
249                                         ISAPNP_FUNCTION(0x0150), pnp_d);
250                         if (!pnp_d) {
251                                 printk(KERN_ERR "NiccyPnP: PnP error card "
252                                         "found, no device\n");
253                                 return 0;
254                         }
255                         pnp_disable_dev(pnp_d);
256                         err = pnp_activate_dev(pnp_d);
257                         if (err < 0) {
258                                 printk(KERN_WARNING "%s: pnp_activate_dev "
259                                         "ret(%d)\n", __FUNCTION__, err);
260                                 return 0;
261                         }
262                         card->para[1] = pnp_port_start(pnp_d, 0);
263                         card->para[2] = pnp_port_start(pnp_d, 1);
264                         card->para[0] = pnp_irq(pnp_d, 0);
265                         if (!card->para[0] || !card->para[1] ||
266                                         !card->para[2]) {
267                                 printk(KERN_ERR "NiccyPnP:some resources are "
268                                         "missing %ld/%lx/%lx\n",
269                                         card->para[0], card->para[1],
270                                         card->para[2]);
271                                 pnp_disable_dev(pnp_d);
272                                 return 0;
273                         }
274                 } else
275                         printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
276         }
277 #endif
278         if (card->para[1]) {
279                 cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
280                 cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
281                 cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
282                 cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
283                 cs->hw.niccy.cfg_reg = 0;
284                 cs->subtyp = NICCY_PNP;
285                 cs->irq = card->para[0];
286                 if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
287                         printk(KERN_WARNING "HiSax: %s data port %x-%x "
288                                 "already in use\n", CardType[card->typ],
289                                 cs->hw.niccy.isac, cs->hw.niccy.isac + 1);
290                         return 0;
291                 }
292                 if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
293                         printk(KERN_WARNING "HiSax: %s address port %x-%x "
294                                 "already in use\n", CardType[card->typ],
295                                 cs->hw.niccy.isac_ale,
296                                 cs->hw.niccy.isac_ale + 1);
297                         release_region(cs->hw.niccy.isac, 2);
298                         return 0;
299                 }
300         } else {
301 #ifdef CONFIG_PCI_LEGACY
302                 static struct pci_dev *niccy_dev __devinitdata;
303
304                 u_int pci_ioaddr;
305                 cs->subtyp = 0;
306                 if ((niccy_dev = pci_find_device(PCI_VENDOR_ID_SATSAGEM,
307                                                  PCI_DEVICE_ID_SATSAGEM_NICCY,
308                                                  niccy_dev))) {
309                         if (pci_enable_device(niccy_dev))
310                                 return 0;
311                         /* get IRQ */
312                         if (!niccy_dev->irq) {
313                                 printk(KERN_WARNING
314                                        "Niccy: No IRQ for PCI card found\n");
315                                 return 0;
316                         }
317                         cs->irq = niccy_dev->irq;
318                         cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
319                         if (!cs->hw.niccy.cfg_reg) {
320                                 printk(KERN_WARNING
321                                        "Niccy: No IO-Adr for PCI cfg found\n");
322                                 return 0;
323                         }
324                         pci_ioaddr = pci_resource_start(niccy_dev, 1);
325                         if (!pci_ioaddr) {
326                                 printk(KERN_WARNING
327                                        "Niccy: No IO-Adr for PCI card found\n");
328                                 return 0;
329                         }
330                         cs->subtyp = NICCY_PCI;
331                 } else {
332                         printk(KERN_WARNING "Niccy: No PCI card found\n");
333                         return 0;
334                 }
335                 cs->irq_flags |= IRQF_SHARED;
336                 cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
337                 cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
338                 cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
339                 cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
340                 if (!request_region(cs->hw.niccy.isac, 4, "niccy")) {
341                         printk(KERN_WARNING
342                                "HiSax: %s data port %x-%x already in use\n",
343                                CardType[card->typ],
344                                cs->hw.niccy.isac, cs->hw.niccy.isac + 4);
345                         return 0;
346                 }
347                 if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
348                         printk(KERN_WARNING
349                                "HiSax: %s pci port %x-%x already in use\n",
350                                CardType[card->typ],
351                                cs->hw.niccy.cfg_reg,
352                                cs->hw.niccy.cfg_reg + 0x40);
353                         release_region(cs->hw.niccy.isac, 4);
354                         return 0;
355                 }
356 #else
357                 printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
358                 printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
359                 return 0;
360 #endif                          /* CONFIG_PCI_LEGACY */
361         }
362         printk(KERN_INFO "HiSax: %s %s config irq:%d data:0x%X ale:0x%X\n",
363                 CardType[cs->typ], (cs->subtyp == 1) ? "PnP" : "PCI",
364                 cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
365         setup_isac(cs);
366         cs->readisac = &ReadISAC;
367         cs->writeisac = &WriteISAC;
368         cs->readisacfifo = &ReadISACfifo;
369         cs->writeisacfifo = &WriteISACfifo;
370         cs->BC_Read_Reg = &ReadHSCX;
371         cs->BC_Write_Reg = &WriteHSCX;
372         cs->BC_Send_Data = &hscx_fill_fifo;
373         cs->cardmsg = &niccy_card_msg;
374         cs->irq_func = &niccy_interrupt;
375         ISACVersion(cs, "Niccy:");
376         if (HscxVersion(cs, "Niccy:")) {
377                 printk(KERN_WARNING "Niccy: wrong HSCX versions check IO "
378                         "address\n");
379                 release_io_niccy(cs);
380                 return 0;
381         }
382         return 1;
383 }