File: /usr/src/linux/drivers/isdn/hisax/avm_a1p.c
1 /* $Id: avm_a1p.c,v 2.7.6.1 2001/02/16 16:43:25 kai Exp $
2 *
3 * avm_a1p.c low level stuff for the following AVM cards:
4 * A1 PCMCIA
5 * FRITZ!Card PCMCIA
6 * FRITZ!Card PCMCIA 2.0
7 *
8 * Author Carsten Paeth (calle@calle.in-berlin.de)
9 *
10 * This file is (c) under GNU General Public License
11 */
12 #define __NO_VERSION__
13 #include <linux/init.h>
14 #include "hisax.h"
15 #include "isac.h"
16 #include "hscx.h"
17 #include "isdnl1.h"
18
19 /* register offsets */
20 #define ADDRREG_OFFSET 0x02
21 #define DATAREG_OFFSET 0x03
22 #define ASL0_OFFSET 0x04
23 #define ASL1_OFFSET 0x05
24 #define MODREG_OFFSET 0x06
25 #define VERREG_OFFSET 0x07
26
27 /* address offsets */
28 #define ISAC_FIFO_OFFSET 0x00
29 #define ISAC_REG_OFFSET 0x20
30 #define HSCX_CH_DIFF 0x40
31 #define HSCX_FIFO_OFFSET 0x80
32 #define HSCX_REG_OFFSET 0xa0
33
34 /* read bits ASL0 */
35 #define ASL0_R_TIMER 0x10 /* active low */
36 #define ASL0_R_ISAC 0x20 /* active low */
37 #define ASL0_R_HSCX 0x40 /* active low */
38 #define ASL0_R_TESTBIT 0x80
39 #define ASL0_R_IRQPENDING (ASL0_R_ISAC|ASL0_R_HSCX|ASL0_R_TIMER)
40
41 /* write bits ASL0 */
42 #define ASL0_W_RESET 0x01
43 #define ASL0_W_TDISABLE 0x02
44 #define ASL0_W_TRESET 0x04
45 #define ASL0_W_IRQENABLE 0x08
46 #define ASL0_W_TESTBIT 0x80
47
48 /* write bits ASL1 */
49 #define ASL1_W_LED0 0x10
50 #define ASL1_W_LED1 0x20
51 #define ASL1_W_ENABLE_S0 0xC0
52
53 #define byteout(addr,val) outb(val,addr)
54 #define bytein(addr) inb(addr)
55
56 static const char *avm_revision = "$Revision: 2.7.6.1 $";
57
58 static inline u_char
59 ReadISAC(struct IsdnCardState *cs, u_char offset)
60 {
61 long flags;
62 u_char ret;
63
64 offset -= 0x20;
65 save_flags(flags);
66 cli();
67 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_REG_OFFSET+offset);
68 ret = bytein(cs->hw.avm.cfg_reg+DATAREG_OFFSET);
69 restore_flags(flags);
70 return ret;
71 }
72
73 static inline void
74 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
75 {
76 long flags;
77
78 offset -= 0x20;
79
80 save_flags(flags);
81 cli();
82 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_REG_OFFSET+offset);
83 byteout(cs->hw.avm.cfg_reg+DATAREG_OFFSET, value);
84 restore_flags(flags);
85 }
86
87 static inline void
88 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
89 {
90 long flags;
91
92 save_flags(flags);
93 cli();
94 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_FIFO_OFFSET);
95 insb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
96 restore_flags(flags);
97 }
98
99 static inline void
100 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
101 {
102 long flags;
103
104 save_flags(flags);
105 cli();
106 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_FIFO_OFFSET);
107 outsb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
108 restore_flags(flags);
109 }
110
111 static inline u_char
112 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
113 {
114 u_char ret;
115 long flags;
116
117 offset -= 0x20;
118
119 save_flags(flags);
120 cli();
121 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
122 HSCX_REG_OFFSET+hscx*HSCX_CH_DIFF+offset);
123 ret = bytein(cs->hw.avm.cfg_reg+DATAREG_OFFSET);
124 restore_flags(flags);
125 return ret;
126 }
127
128 static inline void
129 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
130 {
131 long flags;
132
133 offset -= 0x20;
134
135 save_flags(flags);
136 cli();
137 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
138 HSCX_REG_OFFSET+hscx*HSCX_CH_DIFF+offset);
139 byteout(cs->hw.avm.cfg_reg+DATAREG_OFFSET, value);
140 restore_flags(flags);
141 }
142
143 static inline void
144 ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
145 {
146 long flags;
147
148 save_flags(flags);
149 cli();
150 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
151 HSCX_FIFO_OFFSET+hscx*HSCX_CH_DIFF);
152 insb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
153 restore_flags(flags);
154 }
155
156 static inline void
157 WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
158 {
159 long flags;
160
161 save_flags(flags);
162 cli();
163 byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
164 HSCX_FIFO_OFFSET+hscx*HSCX_CH_DIFF);
165 outsb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
166 restore_flags(flags);
167 }
168
169 /*
170 * fast interrupt HSCX stuff goes here
171 */
172
173 #define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
174 #define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
175 #define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
176 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
177
178 #include "hscx_irq.c"
179
180 static void
181 avm_a1p_interrupt(int intno, void *dev_id, struct pt_regs *regs)
182 {
183 struct IsdnCardState *cs = dev_id;
184 u_char val, sval;
185
186 if (!cs) {
187 printk(KERN_WARNING "AVM A1 PCMCIA: Spurious interrupt!\n");
188 return;
189 }
190 while ((sval = (~bytein(cs->hw.avm.cfg_reg+ASL0_OFFSET) & ASL0_R_IRQPENDING))) {
191 if (cs->debug & L1_DEB_INTSTAT)
192 debugl1(cs, "avm IntStatus %x", sval);
193 if (sval & ASL0_R_HSCX) {
194 val = ReadHSCX(cs, 1, HSCX_ISTA);
195 if (val)
196 hscx_int_main(cs, val);
197 }
198 if (sval & ASL0_R_ISAC) {
199 val = ReadISAC(cs, ISAC_ISTA);
200 if (val)
201 isac_interrupt(cs, val);
202 }
203 }
204 WriteHSCX(cs, 0, HSCX_MASK, 0xff);
205 WriteHSCX(cs, 1, HSCX_MASK, 0xff);
206 WriteISAC(cs, ISAC_MASK, 0xff);
207 WriteISAC(cs, ISAC_MASK, 0x00);
208 WriteHSCX(cs, 0, HSCX_MASK, 0x00);
209 WriteHSCX(cs, 1, HSCX_MASK, 0x00);
210 }
211
212 static int
213 AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
214 {
215 switch (mt) {
216 case CARD_RESET:
217 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
218 HZDELAY(HZ / 5 + 1);
219 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,ASL0_W_RESET);
220 HZDELAY(HZ / 5 + 1);
221 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
222 return 0;
223
224 case CARD_RELEASE:
225 /* free_irq is done in HiSax_closecard(). */
226 /* free_irq(cs->irq, cs); */
227 return 0;
228
229 case CARD_INIT:
230 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,ASL0_W_TDISABLE|ASL0_W_TRESET|ASL0_W_IRQENABLE);
231 clear_pending_isac_ints(cs);
232 clear_pending_hscx_ints(cs);
233 inithscxisac(cs, 1);
234 inithscxisac(cs, 2);
235 return 0;
236
237 case CARD_TEST:
238 /* we really don't need it for the PCMCIA Version */
239 return 0;
240
241 default:
242 /* all card drivers ignore others, so we do the same */
243 return 0;
244 }
245 return 0;
246 }
247
248 int __devinit
249 setup_avm_a1_pcmcia(struct IsdnCard *card)
250 {
251 u_char model, vers;
252 struct IsdnCardState *cs = card->cs;
253 long flags;
254 char tmp[64];
255
256
257 strcpy(tmp, avm_revision);
258 printk(KERN_INFO "HiSax: AVM A1 PCMCIA driver Rev. %s\n",
259 HiSax_getrev(tmp));
260 if (cs->typ != ISDN_CTYPE_A1_PCMCIA)
261 return (0);
262
263 cs->hw.avm.cfg_reg = card->para[1];
264 cs->irq = card->para[0];
265
266
267 save_flags(flags);
268 outb(cs->hw.avm.cfg_reg+ASL1_OFFSET, ASL1_W_ENABLE_S0);
269 sti();
270
271 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
272 HZDELAY(HZ / 5 + 1);
273 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,ASL0_W_RESET);
274 HZDELAY(HZ / 5 + 1);
275 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
276
277 byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET, ASL0_W_TDISABLE|ASL0_W_TRESET);
278
279 restore_flags(flags);
280
281 model = bytein(cs->hw.avm.cfg_reg+MODREG_OFFSET);
282 vers = bytein(cs->hw.avm.cfg_reg+VERREG_OFFSET);
283
284 printk(KERN_INFO "AVM A1 PCMCIA: io 0x%x irq %d model %d version %d\n",
285 cs->hw.avm.cfg_reg, cs->irq, model, vers);
286
287 cs->readisac = &ReadISAC;
288 cs->writeisac = &WriteISAC;
289 cs->readisacfifo = &ReadISACfifo;
290 cs->writeisacfifo = &WriteISACfifo;
291 cs->BC_Read_Reg = &ReadHSCX;
292 cs->BC_Write_Reg = &WriteHSCX;
293 cs->BC_Send_Data = &hscx_fill_fifo;
294 cs->cardmsg = &AVM_card_msg;
295 cs->irq_func = &avm_a1p_interrupt;
296
297 ISACVersion(cs, "AVM A1 PCMCIA:");
298 if (HscxVersion(cs, "AVM A1 PCMCIA:")) {
299 printk(KERN_WARNING
300 "AVM A1 PCMCIA: wrong HSCX versions check IO address\n");
301 return (0);
302 }
303 return (1);
304 }
305