Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 7 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 672c3fd | 2005-06-25 14:59:18 -0700 | [diff] [blame] | 19 | static const char *mic_revision = "$Revision: 1.12.2.4 $"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 21 | #define byteout(addr, val) outb(val, addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 42 | readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 57 | writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 78 | ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | { |
| 80 | readfifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size); |
| 81 | } |
| 82 | |
| 83 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 84 | WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 112 | #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.mic.adr, \ |
| 113 | cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 115 | #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.mic.adr, \ |
| 116 | cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | |
| 118 | #include "hscx_irq.c" |
| 119 | |
| 120 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 121 | mic_interrupt(int intno, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 129 | Start_HSCX: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | if (val) |
| 131 | hscx_int_main(cs, val); |
| 132 | val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 133 | Start_ISAC: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 672c3fd | 2005-06-25 14:59:18 -0700 | [diff] [blame] | 158 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | } |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 187 | return (0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | |
Greg Kroah-Hartman | ed5a84c | 2012-12-21 13:13:05 -0800 | [diff] [blame^] | 190 | int setup_mic(struct IsdnCard *card) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Jeff Garzik | 8349304 | 2007-10-31 03:42:07 -0400 | [diff] [blame] | 210 | "HiSax: ith mic config port %x-%x already in use\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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", |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 216 | cs->hw.mic.cfg_reg, cs->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 230 | "mic: wrong HSCX versions check IO address\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | release_io_mic(cs); |
| 232 | return (0); |
| 233 | } |
| 234 | return (1); |
| 235 | } |