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14#include <linux/init.h>
15#include "hisax.h"
16#include "isac.h"
17#include "hscx.h"
18#include "jade.h"
19#include "isdnl1.h"
20#include <linux/pci.h>
21#include "bkm_ax.h"
22
23static const char *bkm_a4t_revision = "$Revision: 1.22.2.4 $";
24
25
26static inline u_char
27readreg(unsigned int ale, unsigned long adr, u_char off)
28{
29 register u_int ret;
30 unsigned int *po = (unsigned int *) adr;
31
32 *po = (GCS_2 | PO_WRITE | off);
33 __WAITI20__(po);
34 *po = (ale | PO_READ);
35 __WAITI20__(po);
36 ret = *po;
37 return ((unsigned char) ret);
38}
39
40
41static inline void
42readfifo(unsigned int ale, unsigned long adr, u_char off, u_char *data, int size)
43{
44 int i;
45 for (i = 0; i < size; i++)
46 *data++ = readreg(ale, adr, off);
47}
48
49
50static inline void
51writereg(unsigned int ale, unsigned long adr, u_char off, u_char data)
52{
53 unsigned int *po = (unsigned int *) adr;
54 *po = (GCS_2 | PO_WRITE | off);
55 __WAITI20__(po);
56 *po = (ale | PO_WRITE | data);
57 __WAITI20__(po);
58}
59
60
61static inline void
62writefifo(unsigned int ale, unsigned long adr, u_char off, u_char *data, int size)
63{
64 int i;
65
66 for (i = 0; i < size; i++)
67 writereg(ale, adr, off, *data++);
68}
69
70
71
72
73static u_char
74ReadISAC(struct IsdnCardState *cs, u_char offset)
75{
76 return (readreg(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, offset));
77}
78
79static void
80WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
81{
82 writereg(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, offset, value);
83}
84
85static void
86ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
87{
88 readfifo(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, 0, data, size);
89}
90
91static void
92WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
93{
94 writefifo(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, 0, data, size);
95}
96
97static u_char
98ReadJADE(struct IsdnCardState *cs, int jade, u_char offset)
99{
100 return (readreg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, offset + (jade == -1 ? 0 : (jade ? 0xC0 : 0x80))));
101}
102
103static void
104WriteJADE(struct IsdnCardState *cs, int jade, u_char offset, u_char value)
105{
106 writereg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, offset + (jade == -1 ? 0 : (jade ? 0xC0 : 0x80)), value);
107}
108
109
110
111
112
113#define READJADE(cs, nr, reg) readreg(cs->hw.ax.jade_ale, \
114 cs->hw.ax.jade_adr, reg + (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)))
115#define WRITEJADE(cs, nr, reg, data) writereg(cs->hw.ax.jade_ale, \
116 cs->hw.ax.jade_adr, reg + (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)), data)
117
118#define READJADEFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.ax.jade_ale, \
119 cs->hw.ax.jade_adr, (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)), ptr, cnt)
120#define WRITEJADEFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.ax.jade_ale, \
121 cs->hw.ax.jade_adr, (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)), ptr, cnt)
122
123#include "jade_irq.c"
124
125static irqreturn_t
126bkm_interrupt(int intno, void *dev_id)
127{
128 struct IsdnCardState *cs = dev_id;
129 u_char val = 0;
130 u_long flags;
131 I20_REGISTER_FILE *pI20_Regs;
132
133 spin_lock_irqsave(&cs->lock, flags);
134 pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base);
135
136
137 if (pI20_Regs->i20IntStatus & intISDN) {
138
139 pI20_Regs->i20IntStatus = intISDN;
140
141 pI20_Regs->i20IntCtrl &= ~intISDN;
142
143 val = readreg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, jade_HDLC_ISR + 0x80);
144 if (val) {
145 jade_int_main(cs, val, 0);
146 }
147
148 val = readreg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, jade_HDLC_ISR + 0xC0);
149 if (val) {
150 jade_int_main(cs, val, 1);
151 }
152
153 val = readreg(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, ISAC_ISTA);
154 if (val) {
155 isac_interrupt(cs, val);
156 }
157
158 pI20_Regs->i20IntCtrl |= intISDN;
159 spin_unlock_irqrestore(&cs->lock, flags);
160 return IRQ_HANDLED;
161 } else {
162 spin_unlock_irqrestore(&cs->lock, flags);
163 return IRQ_NONE;
164 }
165}
166
167static void
168release_io_bkm(struct IsdnCardState *cs)
169{
170 if (cs->hw.ax.base) {
171 iounmap((void *) cs->hw.ax.base);
172 cs->hw.ax.base = 0;
173 }
174}
175
176static void
177enable_bkm_int(struct IsdnCardState *cs, unsigned bEnable)
178{
179 if (cs->typ == ISDN_CTYPE_BKM_A4T) {
180 I20_REGISTER_FILE *pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base);
181 if (bEnable)
182 pI20_Regs->i20IntCtrl |= (intISDN | intPCI);
183 else
184
185 pI20_Regs->i20IntCtrl &= ~(intISDN | intPCI);
186 }
187}
188
189static void
190reset_bkm(struct IsdnCardState *cs)
191{
192 if (cs->typ == ISDN_CTYPE_BKM_A4T) {
193 I20_REGISTER_FILE *pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base);
194
195 pI20_Regs->i20SysControl = 0xFF;
196 mdelay(10);
197
198 pI20_Regs->i20SysControl = sysRESET | 0xFF;
199 mdelay(10);
200
201 pI20_Regs->i20SysControl = sysRESET | sysCFG;
202
203 pI20_Regs->i20GuestControl = guestWAIT_CFG |
204 g_A4T_JADE_RES |
205 g_A4T_ISAR_RES |
206 g_A4T_ISAC_RES |
207 g_A4T_JADE_BOOTR |
208 g_A4T_ISAR_BOOTR;
209 mdelay(10);
210
211
212 pI20_Regs->i20GuestControl &= ~(g_A4T_ISAC_RES |
213 g_A4T_JADE_RES |
214 g_A4T_ISAR_RES);
215 mdelay(10);
216 }
217}
218
219static int
220BKM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
221{
222 u_long flags;
223
224 switch (mt) {
225 case CARD_RESET:
226
227 spin_lock_irqsave(&cs->lock, flags);
228 enable_bkm_int(cs, 0);
229 reset_bkm(cs);
230 spin_unlock_irqrestore(&cs->lock, flags);
231 return (0);
232 case CARD_RELEASE:
233
234 spin_lock_irqsave(&cs->lock, flags);
235 enable_bkm_int(cs, 0);
236 reset_bkm(cs);
237 spin_unlock_irqrestore(&cs->lock, flags);
238 release_io_bkm(cs);
239 return (0);
240 case CARD_INIT:
241 spin_lock_irqsave(&cs->lock, flags);
242 clear_pending_isac_ints(cs);
243 clear_pending_jade_ints(cs);
244 initisac(cs);
245 initjade(cs);
246
247 enable_bkm_int(cs, 1);
248 spin_unlock_irqrestore(&cs->lock, flags);
249 return (0);
250 case CARD_TEST:
251 return (0);
252 }
253 return (0);
254}
255
256static int a4t_pci_probe(struct pci_dev *dev_a4t, struct IsdnCardState *cs,
257 u_int *found, u_int *pci_memaddr)
258{
259 u16 sub_sys;
260 u16 sub_vendor;
261
262 sub_vendor = dev_a4t->subsystem_vendor;
263 sub_sys = dev_a4t->subsystem_device;
264 if ((sub_sys == PCI_DEVICE_ID_BERKOM_A4T) && (sub_vendor == PCI_VENDOR_ID_BERKOM)) {
265 if (pci_enable_device(dev_a4t))
266 return (0);
267 *found = 1;
268 *pci_memaddr = pci_resource_start(dev_a4t, 0);
269 cs->irq = dev_a4t->irq;
270 return (1);
271 }
272
273 return (-1);
274}
275
276static int a4t_cs_init(struct IsdnCard *card, struct IsdnCardState *cs,
277 u_int pci_memaddr)
278{
279 I20_REGISTER_FILE *pI20_Regs;
280
281 if (!cs->irq) {
282 printk(KERN_WARNING "HiSax: Telekom A4T: No IRQ\n");
283 return (0);
284 }
285 cs->hw.ax.base = (long) ioremap(pci_memaddr, 4096);
286
287 pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base);
288 if ((pI20_Regs->i20IntStatus & 0x8EFFFFFF) != 0) {
289 printk(KERN_WARNING "HiSax: Telekom A4T address "
290 "%lx-%lx suspicious\n",
291 cs->hw.ax.base, cs->hw.ax.base + 4096);
292 iounmap((void *) cs->hw.ax.base);
293 cs->hw.ax.base = 0;
294 return (0);
295 }
296 cs->hw.ax.isac_adr = cs->hw.ax.base + PO_OFFSET;
297 cs->hw.ax.jade_adr = cs->hw.ax.base + PO_OFFSET;
298 cs->hw.ax.isac_ale = GCS_1;
299 cs->hw.ax.jade_ale = GCS_3;
300
301 printk(KERN_INFO "HiSax: Telekom A4T: Card configured at "
302 "0x%lX IRQ %d\n",
303 cs->hw.ax.base, cs->irq);
304
305 setup_isac(cs);
306 cs->readisac = &ReadISAC;
307 cs->writeisac = &WriteISAC;
308 cs->readisacfifo = &ReadISACfifo;
309 cs->writeisacfifo = &WriteISACfifo;
310 cs->BC_Read_Reg = &ReadJADE;
311 cs->BC_Write_Reg = &WriteJADE;
312 cs->BC_Send_Data = &jade_fill_fifo;
313 cs->cardmsg = &BKM_card_msg;
314 cs->irq_func = &bkm_interrupt;
315 cs->irq_flags |= IRQF_SHARED;
316 ISACVersion(cs, "Telekom A4T:");
317
318 JadeVersion(cs, "Telekom A4T:");
319
320 return (1);
321}
322
323static struct pci_dev *dev_a4t = NULL;
324
325int setup_bkm_a4t(struct IsdnCard *card)
326{
327 struct IsdnCardState *cs = card->cs;
328 char tmp[64];
329 u_int pci_memaddr = 0, found = 0;
330 int ret;
331
332 strcpy(tmp, bkm_a4t_revision);
333 printk(KERN_INFO "HiSax: T-Berkom driver Rev. %s\n", HiSax_getrev(tmp));
334 if (cs->typ == ISDN_CTYPE_BKM_A4T) {
335 cs->subtyp = BKM_A4T;
336 } else
337 return (0);
338
339 while ((dev_a4t = hisax_find_pci_device(PCI_VENDOR_ID_ZORAN,
340 PCI_DEVICE_ID_ZORAN_36120, dev_a4t))) {
341 ret = a4t_pci_probe(dev_a4t, cs, &found, &pci_memaddr);
342 if (!ret)
343 return (0);
344 if (ret > 0)
345 break;
346 }
347 if (!found) {
348 printk(KERN_WARNING "HiSax: Telekom A4T: Card not found\n");
349 return (0);
350 }
351 if (!pci_memaddr) {
352 printk(KERN_WARNING "HiSax: Telekom A4T: "
353 "No Memory base address\n");
354 return (0);
355 }
356
357 return a4t_cs_init(card, cs, pci_memaddr);
358}
359
