2 * Copyright (c) 1999 Hellmuth Michaelis. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 *---------------------------------------------------------------------------
27 * isic - I4B Siemens ISDN Chipset Driver for ELSA MicroLink ISDN/PCC-16
28 * =====================================================================
30 * $Id: i4b_elsa_pcc16.c,v 1.2 1999/12/13 21:25:26 hm Exp $
34 * last edit-date: [Mon Dec 13 21:59:36 1999]
36 *---------------------------------------------------------------------------*/
41 #if (NISIC > 0) && defined(ELSA_PCC16)
43 #include <sys/param.h>
44 #include <sys/systm.h>
46 #include <sys/socket.h>
49 #include <machine/clock.h>
51 #include <machine/i4b_debug.h>
52 #include <machine/i4b_ioctl.h>
54 #include <i4b/include/i4b_global.h>
55 #include <i4b/include/i4b_l1l2.h>
56 #include <i4b/include/i4b_mbuf.h>
58 #include <i4b/layer1/i4b_l1.h>
59 #include <i4b/layer1/i4b_isac.h>
60 #include <i4b/layer1/i4b_hscx.h>
62 static void i4b_epcc16_clrirq(struct l1_softc *sc);
64 /* masks for register encoded in base addr */
66 #define ELSA_BASE_MASK 0x0ffff
67 #define ELSA_OFF_MASK 0xf0000
69 /* register id's to be encoded in base addr */
71 #define ELSA_IDISAC 0x00000
72 #define ELSA_IDHSCXA 0x10000
73 #define ELSA_IDHSCXB 0x20000
75 /* offsets from base address */
77 #define ELSA_OFF_ISAC 0x00
78 #define ELSA_OFF_HSCX 0x02
79 #define ELSA_OFF_OFF 0x03
80 #define ELSA_OFF_CTRL 0x04
81 #define ELSA_OFF_CFG 0x05
82 #define ELSA_OFF_TIMR 0x06
83 #define ELSA_OFF_IRQ 0x07
85 /* control register (write access) */
87 #define ELSA_CTRL_LED_YELLOW 0x02
88 #define ELSA_CTRL_LED_GREEN 0x08
89 #define ELSA_CTRL_RESET 0x20
90 #define ELSA_CTRL_TIMEREN 0x80
91 #define ELSA_CTRL_SECRET 0x50
93 /*---------------------------------------------------------------------------*
94 * ELSA MicroLink ISDN/PCC-16 clear IRQ routine
95 *---------------------------------------------------------------------------*/
97 i4b_epcc16_clrirq(struct l1_softc *sc)
99 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
100 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
101 bus_space_write_1(t, h, ELSA_OFF_IRQ, 0);
104 /*---------------------------------------------------------------------------*
105 * ELSA MicroLink ISDN/PCC-16 ISAC get fifo routine
106 *---------------------------------------------------------------------------*/
108 epcc16_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
110 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
111 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
115 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
116 bus_space_read_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
118 case ISIC_WHAT_HSCXA:
119 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
120 bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
122 case ISIC_WHAT_HSCXB:
123 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
124 bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
129 /*---------------------------------------------------------------------------*
130 * ELSA MicroLink ISDN/PCC-16 ISAC put fifo routine
131 *---------------------------------------------------------------------------*/
133 epcc16_write_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
135 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
136 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
140 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
141 bus_space_write_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
143 case ISIC_WHAT_HSCXA:
144 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
145 bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
147 case ISIC_WHAT_HSCXB:
148 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
149 bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
154 /*---------------------------------------------------------------------------*
155 * ELSA MicroLink ISDN/PCC-16 ISAC put register routine
156 *---------------------------------------------------------------------------*/
158 epcc16_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
160 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
161 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
165 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
166 bus_space_write_1(t, h, ELSA_OFF_ISAC, data);
168 case ISIC_WHAT_HSCXA:
169 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
170 bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
172 case ISIC_WHAT_HSCXB:
173 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
174 bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
179 /*---------------------------------------------------------------------------*
180 * ELSA MicroLink ISDN/PCC-16 ISAC get register routine
181 *---------------------------------------------------------------------------*/
183 epcc16_read_reg(struct l1_softc *sc, int what, bus_size_t offs)
185 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
186 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
190 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
191 return bus_space_read_1(t, h, ELSA_OFF_ISAC);
192 case ISIC_WHAT_HSCXA:
193 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
194 return bus_space_read_1(t, h, ELSA_OFF_HSCX);
195 case ISIC_WHAT_HSCXB:
196 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
197 return bus_space_read_1(t, h, ELSA_OFF_HSCX);
202 /*---------------------------------------------------------------------------*
203 * isic_detach_Epcc16 - detach for ELSA MicroLink ISDN/PCC-16
204 *---------------------------------------------------------------------------*/
206 isic_detach_Epcc16(device_t dev)
208 struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
210 if ( sc->sc_resources.irq )
212 bus_teardown_intr(dev,sc->sc_resources.irq,
213 (void(*)(void *))isicintr);
214 bus_release_resource(dev,SYS_RES_IRQ,
215 sc->sc_resources.irq_rid,
216 sc->sc_resources.irq);
217 sc->sc_resources.irq = 0;
220 if ( sc->sc_resources.io_base[0] ) {
221 bus_release_resource(dev,SYS_RES_IOPORT,
222 sc->sc_resources.io_rid[0],
223 sc->sc_resources.io_base[0]);
224 sc->sc_resources.io_base[0] = 0;
228 /*---------------------------------------------------------------------------*
229 * isic_probe_Epcc16 - probe for ELSA MicroLink ISDN/PCC-16
230 *---------------------------------------------------------------------------*/
232 isic_probe_Epcc16(device_t dev)
234 size_t unit = device_get_unit(dev); /* get unit */
235 struct l1_softc *sc = 0; /* pointer to softc */
236 void *ih = 0; /* dummy */
238 /* check max unit range */
239 if(unit >= ISIC_MAXUNIT)
241 printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for ELSA PCC-16!\n",
246 sc = &l1_sc[unit]; /* get pointer to softc */
248 sc->sc_unit = unit; /* set unit */
250 sc->sc_flags = FLAG_ELSA_PCC16; /* set flags */
252 /* see if an io base was supplied */
254 if(!(sc->sc_resources.io_base[0] =
255 bus_alloc_resource(dev, SYS_RES_IOPORT,
256 &sc->sc_resources.io_rid[0],
257 0ul, ~0ul, 1, RF_ACTIVE)))
259 printf("isic%d: Could not get iobase for ELSA PCC-16.\n",
264 /* check if we got an iobase */
266 sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
276 printf("isic%d: Error, invalid iobase 0x%x specified for ELSA MicroLink ISDN/PCC-16!\n",
278 isic_detach_Epcc16(dev);
283 /* setup access routines */
285 sc->clearirq = i4b_epcc16_clrirq;
286 sc->readreg = epcc16_read_reg;
287 sc->writereg = epcc16_write_reg;
289 sc->readfifo = epcc16_read_fifo;
290 sc->writefifo = epcc16_write_fifo;
292 /* setup card type */
294 sc->sc_cardtyp = CARD_TYPEP_ELSAQS1ISA;
296 /* setup IOM bus type */
298 sc->sc_bustyp = BUS_TYPE_IOM2;
301 sc->sc_bfifolen = HSCX_FIFO_LEN;
304 * Read HSCX A/B VSTR. Expected value for the ELSA PCC-16
305 * is 0x05 ( = version 2.1 ) in the least significant bits.
308 if( ((HSCX_READ(0, H_VSTR) & 0xf) != 0x5) ||
309 ((HSCX_READ(1, H_VSTR) & 0xf) != 0x5) )
311 printf("isic%d: HSCX VSTR test failed for ELSA MicroLink ISDN/PCC-16\n",
313 printf("isic%d: HSC0: VSTR: %#x\n",
314 unit, HSCX_READ(0, H_VSTR));
315 printf("isic%d: HSC1: VSTR: %#x\n",
316 unit, HSCX_READ(1, H_VSTR));
317 isic_detach_Epcc16(dev);
323 if(!(sc->sc_resources.irq =
324 bus_alloc_resource(dev, SYS_RES_IRQ,
325 &sc->sc_resources.irq_rid,
326 0ul, ~0ul, 1, RF_ACTIVE)))
328 printf("isic%d: Could not get an irq.\n",unit);
329 isic_detach_Epcc16(dev);
333 /* get the irq number */
334 sc->sc_irq = rman_get_start(sc->sc_resources.irq);
336 /* check IRQ validity */
349 printf("isic%d: Error, invalid IRQ [%d] specified for ELSA MicroLink ISDN/PCC-16!\n",
351 isic_detach_Epcc16(dev);
356 /* register interupt routine */
357 bus_setup_intr(dev,sc->sc_resources.irq,INTR_TYPE_NET,
358 (void(*)(void *))(isicintr),
365 /*---------------------------------------------------------------------------*
366 * isic_attach_Epcc16 - attach for ELSA MicroLink ISDN/PCC-16
367 *---------------------------------------------------------------------------*/
369 isic_attach_Epcc16(device_t dev)
371 int unit = device_get_unit(dev);
372 struct l1_softc *sc = &l1_sc[unit];
373 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
374 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
376 u_char byte = ELSA_CTRL_SECRET;
378 byte &= ~ELSA_CTRL_RESET;
379 bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
381 byte |= ELSA_CTRL_RESET;
382 bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
385 bus_space_write_1(t, h, ELSA_OFF_IRQ, 0xff);
390 #endif /* (NISIC > 0) && defined(ELSA_PCC16) */