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envctrl.c (167753) envctrl.c (181303)
1/*-
2 * Copyright (c) 2004 Joerg Wunsch
3 *
4 * derived from sys/i386/isa/pcf.c which is:
5 *
6 * Copyright (c) 1998 Nicolas Souchu, Marc Bouget
7 * All rights reserved.
8 *

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23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2004 Joerg Wunsch
3 *
4 * derived from sys/i386/isa/pcf.c which is:
5 *
6 * Copyright (c) 1998 Nicolas Souchu, Marc Bouget
7 * All rights reserved.
8 *

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23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/dev/pcf/envctrl.c 167753 2007-03-21 03:38:37Z nyan $");
31__FBSDID("$FreeBSD: head/sys/dev/pcf/envctrl.c 181303 2008-08-04 20:46:15Z jhb $");
32
33/*
34 * Device specific driver for the SUNW,envctrl device found on some
35 * UltraSPARC Sun systems. This device is a Philips PCF8584 sitting
36 * on the Ebus2.
37 */
38
39#include <sys/param.h>
32
33/*
34 * Device specific driver for the SUNW,envctrl device found on some
35 * UltraSPARC Sun systems. This device is a Philips PCF8584 sitting
36 * on the Ebus2.
37 */
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/bus.h>
42#include <sys/conf.h>
43#include <sys/kernel.h>
40#include <sys/bus.h>
41#include <sys/conf.h>
42#include <sys/kernel.h>
43#include <sys/lock.h>
44#include <sys/malloc.h>
45#include <sys/module.h>
44#include <sys/malloc.h>
45#include <sys/module.h>
46#include <sys/mutex.h>
46#include <sys/resource.h>
47#include <sys/resource.h>
48#include <sys/systm.h>
47#include <sys/uio.h>
48
49#include <dev/ofw/ofw_bus.h>
50
51#include <machine/bus.h>
52#include <machine/resource.h>
53
54#include <sys/rman.h>

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102
103static int
104envctrl_attach(device_t dev)
105{
106 struct pcf_softc *sc;
107 int rv = ENXIO;
108
109 sc = DEVTOSOFTC(dev);
49#include <sys/uio.h>
50
51#include <dev/ofw/ofw_bus.h>
52
53#include <machine/bus.h>
54#include <machine/resource.h>
55
56#include <sys/rman.h>

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104
105static int
106envctrl_attach(device_t dev)
107{
108 struct pcf_softc *sc;
109 int rv = ENXIO;
110
111 sc = DEVTOSOFTC(dev);
110 bzero(sc, sizeof(struct pcf_softc));
112 mtx_init(&sc->pcf_lock, device_get_nameunit(dev), "pcf", MTX_DEF);
111
112 /* IO port is mandatory */
113 sc->res_ioport = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
114 &sc->rid_ioport, RF_ACTIVE);
115 if (sc->res_ioport == 0) {
116 device_printf(dev, "cannot reserve I/O port range\n");
117 goto error;
118 }
113
114 /* IO port is mandatory */
115 sc->res_ioport = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
116 &sc->rid_ioport, RF_ACTIVE);
117 if (sc->res_ioport == 0) {
118 device_printf(dev, "cannot reserve I/O port range\n");
119 goto error;
120 }
119 sc->bt_ioport = rman_get_bustag(sc->res_ioport);
120 sc->bh_ioport = rman_get_bushandle(sc->res_ioport);
121
122 sc->pcf_flags = device_get_flags(dev);
123
124 if (!(sc->pcf_flags & IIC_POLLED)) {
125 sc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->rid_irq,
126 RF_ACTIVE);
127 if (sc->res_irq == 0) {
128 device_printf(dev, "can't reserve irq, polled mode.\n");
129 sc->pcf_flags |= IIC_POLLED;
130 }
131 }
132
133 /* reset the chip */
134 pcf_rst_card(dev, IIC_FASTEST, PCF_DEFAULT_ADDR, NULL);
135
136 rv = bus_setup_intr(dev, sc->res_irq,
121
122 sc->pcf_flags = device_get_flags(dev);
123
124 if (!(sc->pcf_flags & IIC_POLLED)) {
125 sc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->rid_irq,
126 RF_ACTIVE);
127 if (sc->res_irq == 0) {
128 device_printf(dev, "can't reserve irq, polled mode.\n");
129 sc->pcf_flags |= IIC_POLLED;
130 }
131 }
132
133 /* reset the chip */
134 pcf_rst_card(dev, IIC_FASTEST, PCF_DEFAULT_ADDR, NULL);
135
136 rv = bus_setup_intr(dev, sc->res_irq,
137 INTR_TYPE_NET /* | INTR_ENTROPY */,
137 INTR_TYPE_NET | INTR_MPSAFE /* | INTR_ENTROPY */,
138 NULL, pcf_intr, sc, &sc->intr_cookie);
139 if (rv) {
140 device_printf(dev, "could not setup IRQ\n");
141 goto error;
142 }
143
144 if ((sc->iicbus = device_add_child(dev, "iicbus", -1)) == NULL)
145 device_printf(dev, "could not allocate iicbus instance\n");

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153 if (sc->res_irq != 0) {
154 bus_release_resource(dev, SYS_RES_IRQ, sc->rid_irq,
155 sc->res_irq);
156 }
157 if (sc->res_ioport != 0) {
158 bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ioport,
159 sc->res_ioport);
160 }
138 NULL, pcf_intr, sc, &sc->intr_cookie);
139 if (rv) {
140 device_printf(dev, "could not setup IRQ\n");
141 goto error;
142 }
143
144 if ((sc->iicbus = device_add_child(dev, "iicbus", -1)) == NULL)
145 device_printf(dev, "could not allocate iicbus instance\n");

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153 if (sc->res_irq != 0) {
154 bus_release_resource(dev, SYS_RES_IRQ, sc->rid_irq,
155 sc->res_irq);
156 }
157 if (sc->res_ioport != 0) {
158 bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ioport,
159 sc->res_ioport);
160 }
161 mtx_destroy(&sc->pcf_lock);
161 return (rv);
162}
163
164static int
165envctrl_detach(device_t dev)
166{
167 struct pcf_softc *sc;
168 int rv;

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176 return (rv);
177
178 if (sc->res_irq != 0) {
179 bus_teardown_intr(dev, sc->res_irq, sc->intr_cookie);
180 bus_release_resource(dev, SYS_RES_IRQ, sc->rid_irq, sc->res_irq);
181 }
182
183 bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ioport, sc->res_ioport);
162 return (rv);
163}
164
165static int
166envctrl_detach(device_t dev)
167{
168 struct pcf_softc *sc;
169 int rv;

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177 return (rv);
178
179 if (sc->res_irq != 0) {
180 bus_teardown_intr(dev, sc->res_irq, sc->intr_cookie);
181 bus_release_resource(dev, SYS_RES_IRQ, sc->rid_irq, sc->res_irq);
182 }
183
184 bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ioport, sc->res_ioport);
185 mtx_destroy(&sc->pcf_lock);
184
185 return (0);
186}
187
188DRIVER_MODULE(envctrl, ebus, envctrl_driver, envctrl_devclass, 0, 0);
186
187 return (0);
188}
189
190DRIVER_MODULE(envctrl, ebus, envctrl_driver, envctrl_devclass, 0, 0);
191DRIVER_MODULE(iicbus, envctrl, iicbus_driver, iicbus_devclass, 0, 0);
189MODULE_DEPEND(envctrl, iicbus, PCF_MINVER, PCF_PREFVER, PCF_MAXVER);
190MODULE_VERSION(envctrl, PCF_MODVER);
192MODULE_DEPEND(envctrl, iicbus, PCF_MINVER, PCF_PREFVER, PCF_MAXVER);
193MODULE_VERSION(envctrl, PCF_MODVER);