Annotation of sys/arch/hppa/dev/siop_sgc.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: siop_sgc.c,v 1.1 2007/08/05 19:09:52 kettenis Exp $ */
2:
3: /*
4: * Copyright (c) 2007 Mark Kettenis
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/param.h>
20: #include <sys/device.h>
21: #include <sys/systm.h>
22:
23: #include <machine/autoconf.h>
24: #include <machine/bus.h>
25: #include <machine/iomod.h>
26:
27: #include <scsi/scsi_all.h>
28: #include <scsi/scsiconf.h>
29:
30: #include <dev/ic/siopreg.h>
31: #include <dev/ic/siopvar_common.h>
32: #include <dev/ic/siopvar.h>
33:
34: #include <hppa/dev/cpudevs.h>
35:
36: #define IO_II_INTEN 0x20000000
37: #define IO_II_PACKEN 0x10000000
38: #define IO_II_PREFETCHEN 0x08000000
39:
40: int siop_sgc_match(struct device *, void *, void *);
41: void siop_sgc_attach(struct device *, struct device *, void *);
42: int siop_sgc_intr(void *);
43: void siop_sgc_reset(struct siop_common_softc *);
44:
45: u_int8_t siop_sgc_r1(void *, bus_space_handle_t, bus_size_t);
46: u_int16_t siop_sgc_r2(void *, bus_space_handle_t, bus_size_t);
47: void siop_sgc_w1(void *, bus_space_handle_t, bus_size_t, u_int8_t);
48: void siop_sgc_w2(void *, bus_space_handle_t, bus_size_t, u_int16_t);
49:
50: struct siop_sgc_softc {
51: struct siop_softc sc_siop;
52: bus_space_tag_t sc_iot;
53: bus_space_handle_t sc_ioh;
54: struct hppa_bus_space_tag sc_bustag;
55: };
56:
57: struct cfattach siop_gedoens_ca = {
58: sizeof(struct siop_sgc_softc), siop_sgc_match, siop_sgc_attach
59: };
60:
61: int
62: siop_sgc_match(struct device *parent, void *match, void *aux)
63: {
64: struct confargs *ca = aux;
65:
66: if (ca->ca_type.iodc_type != HPPA_TYPE_ADMA ||
67: ca->ca_type.iodc_sv_model != HPPA_ADMA_FWSCSI)
68: return 0;
69:
70: return 1;
71: }
72:
73: void
74: siop_sgc_attach(struct device *parent, struct device *self, void *aux)
75: {
76: struct siop_sgc_softc *sc = (struct siop_sgc_softc *)self;
77: struct confargs *ca = aux;
78: volatile struct iomod *regs;
79:
80: sc->sc_iot = ca->ca_iot;
81: if (bus_space_map(sc->sc_iot, ca->ca_hpa,
82: IOMOD_HPASIZE, 0, &sc->sc_ioh)) {
83: printf(": cannot map io space\n");
84: return;
85: }
86:
87: sc->sc_bustag = *sc->sc_iot;
88: sc->sc_bustag.hbt_r1 = siop_sgc_r1;
89: sc->sc_bustag.hbt_r2 = siop_sgc_r2;
90: sc->sc_bustag.hbt_w1 = siop_sgc_w1;
91: sc->sc_bustag.hbt_w2 = siop_sgc_w2;
92:
93: sc->sc_siop.sc_c.features = SF_CHIP_PF | SF_CHIP_BE | SF_BUS_WIDE;
94: sc->sc_siop.sc_c.maxburst = 4;
95: sc->sc_siop.sc_c.maxoff = 8;
96: sc->sc_siop.sc_c.clock_div = 3;
97: sc->sc_siop.sc_c.clock_period = 250;
98: sc->sc_siop.sc_c.ram_size = 0;
99:
100: sc->sc_siop.sc_c.sc_reset = siop_sgc_reset;
101: sc->sc_siop.sc_c.sc_dmat = ca->ca_dmatag;
102:
103: sc->sc_siop.sc_c.sc_rt = &sc->sc_bustag;
104: bus_space_subregion(sc->sc_iot, sc->sc_ioh, IOMOD_DEVOFFSET,
105: IOMOD_HPASIZE - IOMOD_DEVOFFSET, &sc->sc_siop.sc_c.sc_rh);
106:
107: regs = bus_space_vaddr(sc->sc_iot, sc->sc_ioh);
108: regs->io_command = CMD_RESET;
109: while ((regs->io_status & IO_ERR_MEM_RY) == 0)
110: delay(100);
111: regs->io_ii_rw = IO_II_PACKEN | IO_II_PREFETCHEN;
112:
113: siop_sgc_reset(&sc->sc_siop.sc_c);
114:
115: regs->io_eim = cpu_gethpa(0) | (31 - ca->ca_irq);
116: regs->io_ii_rw |= IO_II_INTEN;
117: cpu_intr_establish(IPL_BIO, ca->ca_irq, siop_intr, sc,
118: sc->sc_siop.sc_c.sc_dev.dv_xname);
119:
120: printf(": NCR53C720 rev %d\n", bus_space_read_1(sc->sc_siop.sc_c.sc_rt,
121: sc->sc_siop.sc_c.sc_rh, SIOP_CTEST3) >> 4);
122:
123: siop_attach(&sc->sc_siop);
124: }
125:
126: void
127: siop_sgc_reset(struct siop_common_softc *sc)
128: {
129: bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_DCNTL, DCNTL_EA);
130: bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST0, CTEST0_EHP);
131: bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST4, CTEST4_MUX);
132:
133: bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STIME0,
134: (0xc << STIME0_SEL_SHIFT));
135: }
136:
137: u_int8_t
138: siop_sgc_r1(void *v, bus_space_handle_t h, bus_size_t o)
139: {
140: return *(volatile u_int8_t *)(h + (o ^ 3));
141: }
142:
143: u_int16_t
144: siop_sgc_r2(void *v, bus_space_handle_t h, bus_size_t o)
145: {
146: if (o == SIOP_SIST0) {
147: u_int16_t reg;
148:
149: reg = siop_sgc_r1(v, h, SIOP_SIST0);
150: reg |= siop_sgc_r1(v, h, SIOP_SIST1) << 8;
151: return reg;
152: }
153: return *(volatile u_int16_t *)(h + (o ^ 2));
154: }
155:
156: void
157: siop_sgc_w1(void *v, bus_space_handle_t h, bus_size_t o, u_int8_t vv)
158: {
159: *(volatile u_int8_t *)(h + (o ^ 3)) = vv;
160: }
161:
162: void
163: siop_sgc_w2(void *v, bus_space_handle_t h, bus_size_t o, u_int16_t vv)
164: {
165: *(volatile u_int16_t *)(h + (o ^ 2)) = vv;
166: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to siop_sgc.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / hppa / dev