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/kernel.h>
45 #include <sys/systm.h>
47 #include <sys/socket.h>
50 #include <sys/ioccom.h>
51 #include <machine/clock.h>
53 #include <machine/i4b_debug.h>
54 #include <machine/i4b_ioctl.h>
56 #include <i4b/include/i4b_global.h>
57 #include <i4b/include/i4b_l1l2.h>
58 #include <i4b/include/i4b_mbuf.h>
60 #include <i4b/layer1/i4b_l1.h>
61 #include <i4b/layer1/i4b_isac.h>
62 #include <i4b/layer1/i4b_hscx.h>
64 static void i4b_epcc16_clrirq(struct l1_softc *sc);
66 /* masks for register encoded in base addr */
68 #define ELSA_BASE_MASK 0x0ffff
69 #define ELSA_OFF_MASK 0xf0000
71 /* register id's to be encoded in base addr */
73 #define ELSA_IDISAC 0x00000
74 #define ELSA_IDHSCXA 0x10000
75 #define ELSA_IDHSCXB 0x20000
77 /* offsets from base address */
79 #define ELSA_OFF_ISAC 0x00
80 #define ELSA_OFF_HSCX 0x02
81 #define ELSA_OFF_OFF 0x03
82 #define ELSA_OFF_CTRL 0x04
83 #define ELSA_OFF_CFG 0x05
84 #define ELSA_OFF_TIMR 0x06
85 #define ELSA_OFF_IRQ 0x07
87 /* control register (write access) */
89 #define ELSA_CTRL_LED_YELLOW 0x02
90 #define ELSA_CTRL_LED_GREEN 0x08
91 #define ELSA_CTRL_RESET 0x20
92 #define ELSA_CTRL_TIMEREN 0x80
93 #define ELSA_CTRL_SECRET 0x50
95 /*---------------------------------------------------------------------------*
96 * ELSA MicroLink ISDN/PCC-16 clear IRQ routine
97 *---------------------------------------------------------------------------*/
99 i4b_epcc16_clrirq(struct l1_softc *sc)
101 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
102 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
103 bus_space_write_1(t, h, ELSA_OFF_IRQ, 0);
106 /*---------------------------------------------------------------------------*
107 * ELSA MicroLink ISDN/PCC-16 ISAC get fifo routine
108 *---------------------------------------------------------------------------*/
110 epcc16_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
112 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
113 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
117 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
118 bus_space_read_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
120 case ISIC_WHAT_HSCXA:
121 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
122 bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
124 case ISIC_WHAT_HSCXB:
125 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
126 bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
131 /*---------------------------------------------------------------------------*
132 * ELSA MicroLink ISDN/PCC-16 ISAC put fifo routine
133 *---------------------------------------------------------------------------*/
135 epcc16_write_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
137 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
138 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
142 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
143 bus_space_write_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
145 case ISIC_WHAT_HSCXA:
146 bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
147 bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
149 case ISIC_WHAT_HSCXB:
150 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
151 bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
156 /*---------------------------------------------------------------------------*
157 * ELSA MicroLink ISDN/PCC-16 ISAC put register routine
158 *---------------------------------------------------------------------------*/
160 epcc16_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
162 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
163 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
167 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
168 bus_space_write_1(t, h, ELSA_OFF_ISAC, data);
170 case ISIC_WHAT_HSCXA:
171 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
172 bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
174 case ISIC_WHAT_HSCXB:
175 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
176 bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
181 /*---------------------------------------------------------------------------*
182 * ELSA MicroLink ISDN/PCC-16 ISAC get register routine
183 *---------------------------------------------------------------------------*/
185 epcc16_read_reg(struct l1_softc *sc, int what, bus_size_t offs)
187 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
188 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
192 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
193 return bus_space_read_1(t, h, ELSA_OFF_ISAC);
194 case ISIC_WHAT_HSCXA:
195 bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
196 return bus_space_read_1(t, h, ELSA_OFF_HSCX);
197 case ISIC_WHAT_HSCXB:
198 bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
199 return bus_space_read_1(t, h, ELSA_OFF_HSCX);
204 /*---------------------------------------------------------------------------*
205 * isic_detach_Epcc16 - detach for ELSA MicroLink ISDN/PCC-16
206 *---------------------------------------------------------------------------*/
208 isic_detach_Epcc16(device_t dev)
210 struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
212 if ( sc->sc_resources.irq )
214 bus_teardown_intr(dev,sc->sc_resources.irq,
215 (void(*)(void *))isicintr);
216 bus_release_resource(dev,SYS_RES_IRQ,
217 sc->sc_resources.irq_rid,
218 sc->sc_resources.irq);
219 sc->sc_resources.irq = 0;
222 if ( sc->sc_resources.io_base[0] ) {
223 bus_release_resource(dev,SYS_RES_IOPORT,
224 sc->sc_resources.io_rid[0],
225 sc->sc_resources.io_base[0]);
226 sc->sc_resources.io_base[0] = 0;
230 /*---------------------------------------------------------------------------*
231 * isic_probe_Epcc16 - probe for ELSA MicroLink ISDN/PCC-16
232 *---------------------------------------------------------------------------*/
234 isic_probe_Epcc16(device_t dev)
236 size_t unit = device_get_unit(dev); /* get unit */
237 struct l1_softc *sc = 0; /* pointer to softc */
238 void *ih = 0; /* dummy */
240 /* check max unit range */
241 if(unit >= ISIC_MAXUNIT)
243 printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for ELSA PCC-16!\n",
248 sc = &l1_sc[unit]; /* get pointer to softc */
250 sc->sc_unit = unit; /* set unit */
252 sc->sc_flags = FLAG_ELSA_PCC16; /* set flags */
254 /* see if an io base was supplied */
256 if(!(sc->sc_resources.io_base[0] =
257 bus_alloc_resource(dev, SYS_RES_IOPORT,
258 &sc->sc_resources.io_rid[0],
259 0ul, ~0ul, 1, RF_ACTIVE)))
261 printf("isic%d: Could not get iobase for ELSA PCC-16.\n",
266 /* check if we got an iobase */
268 sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
278 printf("isic%d: Error, invalid iobase 0x%x specified for ELSA MicroLink ISDN/PCC-16!\n",
280 isic_detach_Epcc16(dev);
285 /* setup access routines */
287 sc->clearirq = i4b_epcc16_clrirq;
288 sc->readreg = epcc16_read_reg;
289 sc->writereg = epcc16_write_reg;
291 sc->readfifo = epcc16_read_fifo;
292 sc->writefifo = epcc16_write_fifo;
294 /* setup card type */
296 sc->sc_cardtyp = CARD_TYPEP_ELSAQS1ISA;
298 /* setup IOM bus type */
300 sc->sc_bustyp = BUS_TYPE_IOM2;
303 sc->sc_bfifolen = HSCX_FIFO_LEN;
306 * Read HSCX A/B VSTR. Expected value for the ELSA PCC-16
307 * is 0x05 ( = version 2.1 ) in the least significant bits.
310 if( ((HSCX_READ(0, H_VSTR) & 0xf) != 0x5) ||
311 ((HSCX_READ(1, H_VSTR) & 0xf) != 0x5) )
313 printf("isic%d: HSCX VSTR test failed for ELSA MicroLink ISDN/PCC-16\n",
315 printf("isic%d: HSC0: VSTR: %#x\n",
316 unit, HSCX_READ(0, H_VSTR));
317 printf("isic%d: HSC1: VSTR: %#x\n",
318 unit, HSCX_READ(1, H_VSTR));
319 isic_detach_Epcc16(dev);
325 if(!(sc->sc_resources.irq =
326 bus_alloc_resource(dev, SYS_RES_IRQ,
327 &sc->sc_resources.irq_rid,
328 0ul, ~0ul, 1, RF_ACTIVE)))
330 printf("isic%d: Could not get an irq.\n",unit);
331 isic_detach_Epcc16(dev);
335 /* get the irq number */
336 sc->sc_irq = rman_get_start(sc->sc_resources.irq);
338 /* check IRQ validity */
351 printf("isic%d: Error, invalid IRQ [%d] specified for ELSA MicroLink ISDN/PCC-16!\n",
353 isic_detach_Epcc16(dev);
358 /* register interupt routine */
359 bus_setup_intr(dev,sc->sc_resources.irq,INTR_TYPE_NET,
360 (void(*)(void *))(isicintr),
367 /*---------------------------------------------------------------------------*
368 * isic_attach_Epcc16 - attach for ELSA MicroLink ISDN/PCC-16
369 *---------------------------------------------------------------------------*/
371 isic_attach_Epcc16(device_t dev)
373 int unit = device_get_unit(dev);
374 struct l1_softc *sc = &l1_sc[unit];
375 bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
376 bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
378 u_char byte = ELSA_CTRL_SECRET;
380 byte &= ~ELSA_CTRL_RESET;
381 bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
383 byte |= ELSA_CTRL_RESET;
384 bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
387 bus_space_write_1(t, h, ELSA_OFF_IRQ, 0xff);
392 #endif /* (NISIC > 0) && defined(ELSA_PCC16) */