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altera_avgen_fdt.c (245377) altera_avgen_fdt.c (245378)
1/*-
2 * Copyright (c) 2012-2013 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7 * ("CTSRD"), as part of the DARPA CRASH research programme.
8 *

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24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2012-2013 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7 * ("CTSRD"), as part of the DARPA CRASH research programme.
8 *

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24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: head/sys/dev/altera/avgen/altera_avgen_fdt.c 245377 2013-01-13 16:44:45Z rwatson $");
32__FBSDID("$FreeBSD: head/sys/dev/altera/avgen/altera_avgen_fdt.c 245378 2013-01-13 16:51:57Z rwatson $");
33
34#include <sys/param.h>
35#include <sys/bus.h>
36#include <sys/condvar.h>
37#include <sys/conf.h>
38#include <sys/kernel.h>
39#include <sys/lock.h>
40#include <sys/malloc.h>

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46#include <sys/uio.h>
47
48#include <machine/bus.h>
49#include <machine/resource.h>
50#include <machine/vm.h>
51
52#include <vm/vm.h>
53
33
34#include <sys/param.h>
35#include <sys/bus.h>
36#include <sys/condvar.h>
37#include <sys/conf.h>
38#include <sys/kernel.h>
39#include <sys/lock.h>
40#include <sys/malloc.h>

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46#include <sys/uio.h>
47
48#include <machine/bus.h>
49#include <machine/resource.h>
50#include <machine/vm.h>
51
52#include <vm/vm.h>
53
54#include <dev/fdt/fdt_common.h>
55#include <dev/ofw/openfirm.h>
56#include <dev/ofw/ofw_bus.h>
57#include <dev/ofw/ofw_bus_subr.h>
58
54#include <dev/altera/avgen/altera_avgen.h>
55
56static int
59#include <dev/altera/avgen/altera_avgen.h>
60
61static int
57altera_avgen_nexus_probe(device_t dev)
62altera_avgen_fdt_probe(device_t dev)
58{
59
63{
64
60 device_set_desc(dev, "Generic Altera Avalon device attachment");
61 return (BUS_PROBE_DEFAULT);
65 if (ofw_bus_is_compatible(dev, "sri-cambridge,avgen")) {
66 device_set_desc(dev, "Generic Altera Avalon device attachment");
67 return (BUS_PROBE_DEFAULT);
68 }
69 return (ENXIO);
62}
63
64static int
70}
71
72static int
65altera_avgen_nexus_attach(device_t dev)
73altera_avgen_fdt_attach(device_t dev)
66{
67 struct altera_avgen_softc *sc;
74{
75 struct altera_avgen_softc *sc;
68 const char *str_fileio, *str_mmapio;
69 const char *str_devname;
76 char *str_fileio, *str_mmapio;
77 char *str_devname;
78 phandle_t node;
79 pcell_t cell;
70 int devunit, error;
71
72 sc = device_get_softc(dev);
73 sc->avg_dev = dev;
74 sc->avg_unit = device_get_unit(dev);
75
76 /*
80 int devunit, error;
81
82 sc = device_get_softc(dev);
83 sc->avg_dev = dev;
84 sc->avg_unit = device_get_unit(dev);
85
86 /*
77 * Query non-standard hints to find out what operations are permitted
78 * on the device, and whether it is cached.
87 * Query driver-specific OpenFirmware properties to determine how to
88 * expose the device via /dev.
79 */
80 str_fileio = NULL;
81 str_mmapio = NULL;
82 str_devname = NULL;
83 devunit = -1;
84 sc->avg_width = 1;
89 */
90 str_fileio = NULL;
91 str_mmapio = NULL;
92 str_devname = NULL;
93 devunit = -1;
94 sc->avg_width = 1;
85 error = resource_int_value(device_get_name(dev), device_get_unit(dev),
86 ALTERA_AVALON_STR_WIDTH, &sc->avg_width);
87 if (error != 0 && error != ENOENT) {
88 device_printf(dev, "invalid %s\n", ALTERA_AVALON_STR_WIDTH);
89 return (error);
90 }
91 (void)resource_string_value(device_get_name(dev),
92 device_get_unit(dev), ALTERA_AVALON_STR_FILEIO, &str_fileio);
93 (void)resource_string_value(device_get_name(dev),
94 device_get_unit(dev), ALTERA_AVALON_STR_MMAPIO, &str_mmapio);
95 (void)resource_string_value(device_get_name(dev),
96 device_get_unit(dev), ALTERA_AVALON_STR_DEVNAME, &str_devname);
97 (void)resource_int_value(device_get_name(dev), device_get_unit(dev),
98 ALTERA_AVALON_STR_DEVUNIT, &devunit);
95 node = ofw_bus_get_node(dev);
96 if (OF_getprop(node, "sri-cambridge,width", &cell, sizeof(cell)) > 0)
97 sc->avg_width = cell;
98 (void)OF_getprop_alloc(node, "sri-cambridge,fileio", sizeof(char),
99 (void **)&str_fileio);
100 (void)OF_getprop_alloc(node, "sri-cambridge,mmapio", sizeof(char),
101 (void **)&str_mmapio);
102 (void)OF_getprop_alloc(node, "sri-cambridge,devname", sizeof(char),
103 (void **)&str_devname);
104 if (OF_getprop(node, "sri-cambridge,devunit", &cell, sizeof(cell)) > 0)
105 devunit = cell;
99
100 /* Memory allocation and checking. */
101 sc->avg_rid = 0;
102 sc->avg_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
103 &sc->avg_rid, RF_ACTIVE);
104 if (sc->avg_res == NULL) {
105 device_printf(dev, "couldn't map memory\n");
106 return (ENXIO);
107 }
108 error = altera_avgen_attach(sc, str_fileio, str_mmapio, str_devname,
109 devunit);
110 if (error != 0)
111 bus_release_resource(dev, SYS_RES_MEMORY, sc->avg_rid,
112 sc->avg_res);
106
107 /* Memory allocation and checking. */
108 sc->avg_rid = 0;
109 sc->avg_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
110 &sc->avg_rid, RF_ACTIVE);
111 if (sc->avg_res == NULL) {
112 device_printf(dev, "couldn't map memory\n");
113 return (ENXIO);
114 }
115 error = altera_avgen_attach(sc, str_fileio, str_mmapio, str_devname,
116 devunit);
117 if (error != 0)
118 bus_release_resource(dev, SYS_RES_MEMORY, sc->avg_rid,
119 sc->avg_res);
120 if (str_fileio != NULL)
121 free(str_fileio, M_OFWPROP);
122 if (str_mmapio != NULL)
123 free(str_mmapio, M_OFWPROP);
124 if (str_devname != NULL)
125 free(str_devname, M_OFWPROP);
113 return (error);
114}
115
116static int
126 return (error);
127}
128
129static int
117altera_avgen_nexus_detach(device_t dev)
130altera_avgen_fdt_detach(device_t dev)
118{
119 struct altera_avgen_softc *sc;
120
121 sc = device_get_softc(dev);
122 altera_avgen_detach(sc);
123 bus_release_resource(dev, SYS_RES_MEMORY, sc->avg_rid, sc->avg_res);
124 return (0);
125}
126
131{
132 struct altera_avgen_softc *sc;
133
134 sc = device_get_softc(dev);
135 altera_avgen_detach(sc);
136 bus_release_resource(dev, SYS_RES_MEMORY, sc->avg_rid, sc->avg_res);
137 return (0);
138}
139
127static device_method_t altera_avgen_nexus_methods[] = {
128 DEVMETHOD(device_probe, altera_avgen_nexus_probe),
129 DEVMETHOD(device_attach, altera_avgen_nexus_attach),
130 DEVMETHOD(device_detach, altera_avgen_nexus_detach),
140static device_method_t altera_avgen_fdt_methods[] = {
141 DEVMETHOD(device_probe, altera_avgen_fdt_probe),
142 DEVMETHOD(device_attach, altera_avgen_fdt_attach),
143 DEVMETHOD(device_detach, altera_avgen_fdt_detach),
131 { 0, 0 }
132};
133
144 { 0, 0 }
145};
146
134static driver_t altera_avgen_nexus_driver = {
147static driver_t altera_avgen_fdt_driver = {
135 "altera_avgen",
148 "altera_avgen",
136 altera_avgen_nexus_methods,
149 altera_avgen_fdt_methods,
137 sizeof(struct altera_avgen_softc),
138};
139
140static devclass_t altera_avgen_devclass;
141
150 sizeof(struct altera_avgen_softc),
151};
152
153static devclass_t altera_avgen_devclass;
154
142DRIVER_MODULE(avgen, nexus, altera_avgen_nexus_driver, altera_avgen_devclass,
143 0, 0);
155DRIVER_MODULE(avgen, simplebus, altera_avgen_fdt_driver,
156 altera_avgen_devclass, 0, 0);