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1da177e4 LT |
1 | /* $Id: mic.c,v 1.12.2.4 2004/01/13 23:48:39 keil Exp $ |
2 | * | |
3 | * low level stuff for mic cards | |
4 | * | |
5 | * Author Stephan von Krawczynski | |
6 | * Copyright by Stephan von Krawczynski <skraw@ithnet.com> | |
475be4d8 | 7 | * |
1da177e4 LT |
8 | * This software may be used and distributed according to the terms |
9 | * of the GNU General Public License, incorporated herein by reference. | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <linux/init.h> | |
14 | #include "hisax.h" | |
15 | #include "isac.h" | |
16 | #include "hscx.h" | |
17 | #include "isdnl1.h" | |
18 | ||
672c3fd9 | 19 | static const char *mic_revision = "$Revision: 1.12.2.4 $"; |
1da177e4 | 20 | |
475be4d8 | 21 | #define byteout(addr, val) outb(val, addr) |
1da177e4 LT |
22 | #define bytein(addr) inb(addr) |
23 | ||
24 | #define MIC_ISAC 2 | |
25 | #define MIC_HSCX 1 | |
26 | #define MIC_ADR 7 | |
27 | ||
28 | /* CARD_ADR (Write) */ | |
29 | #define MIC_RESET 0x3 /* same as DOS driver */ | |
30 | ||
31 | static inline u_char | |
32 | readreg(unsigned int ale, unsigned int adr, u_char off) | |
33 | { | |
34 | register u_char ret; | |
35 | ||
36 | byteout(ale, off); | |
37 | ret = bytein(adr); | |
38 | return (ret); | |
39 | } | |
40 | ||
41 | static inline void | |
475be4d8 | 42 | readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) |
1da177e4 LT |
43 | { |
44 | byteout(ale, off); | |
45 | insb(adr, data, size); | |
46 | } | |
47 | ||
48 | ||
49 | static inline void | |
50 | writereg(unsigned int ale, unsigned int adr, u_char off, u_char data) | |
51 | { | |
52 | byteout(ale, off); | |
53 | byteout(adr, data); | |
54 | } | |
55 | ||
56 | static inline void | |
475be4d8 | 57 | writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) |
1da177e4 LT |
58 | { |
59 | byteout(ale, off); | |
60 | outsb(adr, data, size); | |
61 | } | |
62 | ||
63 | /* Interface functions */ | |
64 | ||
65 | static u_char | |
66 | ReadISAC(struct IsdnCardState *cs, u_char offset) | |
67 | { | |
68 | return (readreg(cs->hw.mic.adr, cs->hw.mic.isac, offset)); | |
69 | } | |
70 | ||
71 | static void | |
72 | WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) | |
73 | { | |
74 | writereg(cs->hw.mic.adr, cs->hw.mic.isac, offset, value); | |
75 | } | |
76 | ||
77 | static void | |
475be4d8 | 78 | ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) |
1da177e4 LT |
79 | { |
80 | readfifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size); | |
81 | } | |
82 | ||
83 | static void | |
475be4d8 | 84 | WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) |
1da177e4 LT |
85 | { |
86 | writefifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size); | |
87 | } | |
88 | ||
89 | static u_char | |
90 | ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) | |
91 | { | |
92 | return (readreg(cs->hw.mic.adr, | |
93 | cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0))); | |
94 | } | |
95 | ||
96 | static void | |
97 | WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) | |
98 | { | |
99 | writereg(cs->hw.mic.adr, | |
100 | cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0), value); | |
101 | } | |
102 | ||
103 | /* | |
104 | * fast interrupt HSCX stuff goes here | |
105 | */ | |
106 | ||
475be4d8 JP |
107 | #define READHSCX(cs, nr, reg) readreg(cs->hw.mic.adr, \ |
108 | cs->hw.mic.hscx, reg + (nr ? 0x40 : 0)) | |
109 | #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.mic.adr, \ | |
110 | cs->hw.mic.hscx, reg + (nr ? 0x40 : 0), data) | |
1da177e4 | 111 | |
475be4d8 JP |
112 | #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.mic.adr, \ |
113 | cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt) | |
1da177e4 | 114 | |
475be4d8 JP |
115 | #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.mic.adr, \ |
116 | cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt) | |
1da177e4 LT |
117 | |
118 | #include "hscx_irq.c" | |
119 | ||
120 | static irqreturn_t | |
7d12e780 | 121 | mic_interrupt(int intno, void *dev_id) |
1da177e4 LT |
122 | { |
123 | struct IsdnCardState *cs = dev_id; | |
124 | u_char val; | |
125 | u_long flags; | |
126 | ||
127 | spin_lock_irqsave(&cs->lock, flags); | |
128 | val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40); | |
475be4d8 | 129 | Start_HSCX: |
1da177e4 LT |
130 | if (val) |
131 | hscx_int_main(cs, val); | |
132 | val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA); | |
475be4d8 | 133 | Start_ISAC: |
1da177e4 LT |
134 | if (val) |
135 | isac_interrupt(cs, val); | |
136 | val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40); | |
137 | if (val) { | |
138 | if (cs->debug & L1_DEB_HSCX) | |
139 | debugl1(cs, "HSCX IntStat after IntRoutine"); | |
140 | goto Start_HSCX; | |
141 | } | |
142 | val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA); | |
143 | if (val) { | |
144 | if (cs->debug & L1_DEB_ISAC) | |
145 | debugl1(cs, "ISAC IntStat after IntRoutine"); | |
146 | goto Start_ISAC; | |
147 | } | |
148 | writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0xFF); | |
149 | writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0xFF); | |
150 | writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0xFF); | |
151 | writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0x0); | |
152 | writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0x0); | |
153 | writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0x0); | |
154 | spin_unlock_irqrestore(&cs->lock, flags); | |
155 | return IRQ_HANDLED; | |
156 | } | |
157 | ||
672c3fd9 | 158 | static void |
1da177e4 LT |
159 | release_io_mic(struct IsdnCardState *cs) |
160 | { | |
161 | int bytecnt = 8; | |
162 | ||
163 | if (cs->hw.mic.cfg_reg) | |
164 | release_region(cs->hw.mic.cfg_reg, bytecnt); | |
165 | } | |
166 | ||
167 | static int | |
168 | mic_card_msg(struct IsdnCardState *cs, int mt, void *arg) | |
169 | { | |
170 | u_long flags; | |
171 | ||
172 | switch (mt) { | |
475be4d8 JP |
173 | case CARD_RESET: |
174 | return (0); | |
175 | case CARD_RELEASE: | |
176 | release_io_mic(cs); | |
177 | return (0); | |
178 | case CARD_INIT: | |
179 | spin_lock_irqsave(&cs->lock, flags); | |
180 | inithscx(cs); /* /RTSA := ISAC RST */ | |
181 | inithscxisac(cs, 3); | |
182 | spin_unlock_irqrestore(&cs->lock, flags); | |
183 | return (0); | |
184 | case CARD_TEST: | |
185 | return (0); | |
1da177e4 | 186 | } |
475be4d8 | 187 | return (0); |
1da177e4 LT |
188 | } |
189 | ||
ed5a84cd | 190 | int setup_mic(struct IsdnCard *card) |
1da177e4 LT |
191 | { |
192 | int bytecnt; | |
193 | struct IsdnCardState *cs = card->cs; | |
194 | char tmp[64]; | |
195 | ||
196 | strcpy(tmp, mic_revision); | |
197 | printk(KERN_INFO "HiSax: mic driver Rev. %s\n", HiSax_getrev(tmp)); | |
198 | if (cs->typ != ISDN_CTYPE_MIC) | |
199 | return (0); | |
200 | ||
201 | bytecnt = 8; | |
202 | cs->hw.mic.cfg_reg = card->para[1]; | |
203 | cs->irq = card->para[0]; | |
204 | cs->hw.mic.adr = cs->hw.mic.cfg_reg + MIC_ADR; | |
205 | cs->hw.mic.isac = cs->hw.mic.cfg_reg + MIC_ISAC; | |
206 | cs->hw.mic.hscx = cs->hw.mic.cfg_reg + MIC_HSCX; | |
207 | ||
208 | if (!request_region(cs->hw.mic.cfg_reg, bytecnt, "mic isdn")) { | |
209 | printk(KERN_WARNING | |
8349304d | 210 | "HiSax: ith mic config port %x-%x already in use\n", |
1da177e4 LT |
211 | cs->hw.mic.cfg_reg, |
212 | cs->hw.mic.cfg_reg + bytecnt); | |
213 | return (0); | |
214 | } | |
215 | printk(KERN_INFO "mic: defined at 0x%x IRQ %d\n", | |
475be4d8 | 216 | cs->hw.mic.cfg_reg, cs->irq); |
1da177e4 LT |
217 | setup_isac(cs); |
218 | cs->readisac = &ReadISAC; | |
219 | cs->writeisac = &WriteISAC; | |
220 | cs->readisacfifo = &ReadISACfifo; | |
221 | cs->writeisacfifo = &WriteISACfifo; | |
222 | cs->BC_Read_Reg = &ReadHSCX; | |
223 | cs->BC_Write_Reg = &WriteHSCX; | |
224 | cs->BC_Send_Data = &hscx_fill_fifo; | |
225 | cs->cardmsg = &mic_card_msg; | |
226 | cs->irq_func = &mic_interrupt; | |
227 | ISACVersion(cs, "mic:"); | |
228 | if (HscxVersion(cs, "mic:")) { | |
229 | printk(KERN_WARNING | |
475be4d8 | 230 | "mic: wrong HSCX versions check IO address\n"); |
1da177e4 LT |
231 | release_io_mic(cs); |
232 | return (0); | |
233 | } | |
234 | return (1); | |
235 | } |