Mercurial > vordog

comparison vordog.c @ 5:e59963b503cb

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Remove tedious messages.
author Thinker K.F. Li <thinker@branda.to>
date Tue, 08 Jul 2008 12:31:29 +0800
parents 60a234c9c03f
children 76ce6e6624b8
comparison
equal deleted inserted replaced
4:5fa5e5199d1a 5:e59963b503cb
55 55
56 static int 56 static int
57 vordog_open(struct cdev *dev, int oflags, int devtype, struct thread *td) { 57 vordog_open(struct cdev *dev, int oflags, int devtype, struct thread *td) {
58 vd_softc_t sc; 58 vd_softc_t sc;
59 59
60 printf("vordog_open\n");
61 sc = CDEV_2_SOFTC(dev); 60 sc = CDEV_2_SOFTC(dev);
62 sc->open_cnt++; 61 sc->open_cnt++;
63 62
64 return 0; 63 return 0;
65 } 64 }
66 65
67 static int 66 static int
68 vordog_close(struct cdev *dev, int fflag, int devtype, struct thread *td) { 67 vordog_close(struct cdev *dev, int fflag, int devtype, struct thread *td) {
69 vd_softc_t sc; 68 vd_softc_t sc;
70 69
71 printf("vordog_close\n");
72 sc = CDEV_2_SOFTC(dev); 70 sc = CDEV_2_SOFTC(dev);
73 sc->open_cnt--; 71 sc->open_cnt--;
74 72
75 return 0; 73 return 0;
76 } 74 }
79 vordog_go_detach(void) { 77 vordog_go_detach(void) {
80 devclass_t vd_dc; 78 devclass_t vd_dc;
81 device_t vd_dev, nexus_dev; 79 device_t vd_dev, nexus_dev;
82 int r; 80 int r;
83 81
84 printf("go_detach 1\n");
85 vd_dc = devclass_find("vordog"); 82 vd_dc = devclass_find("vordog");
86 if(vd_dc == NULL) 83 if(vd_dc == NULL)
87 return EINVAL; 84 return EINVAL;
88 85
89 printf("go_detach 2\n");
90 vd_dev = devclass_get_device(vd_dc, 0); 86 vd_dev = devclass_get_device(vd_dc, 0);
91 if(vd_dev == NULL) 87 if(vd_dev == NULL)
92 return EINVAL; 88 return EINVAL;
93 89
94 printf("go_detach 3\n");
95 nexus_dev = device_get_parent(vd_dev); 90 nexus_dev = device_get_parent(vd_dev);
96 if(nexus_dev == NULL) 91 if(nexus_dev == NULL)
97 return EINVAL; 92 return EINVAL;
98 93
99 printf("go_detach 4\n");
100 r = device_delete_child(nexus_dev, vd_dev); 94 r = device_delete_child(nexus_dev, vd_dev);
101 return r; 95 return r;
102 } 96 }
103 97
104 static void 98 static void
154 .d_open = vordog_open, 148 .d_open = vordog_open,
155 .d_close = vordog_close, 149 .d_close = vordog_close,
156 .d_ioctl = vordog_ioctl, 150 .d_ioctl = vordog_ioctl,
157 .d_name = "vordog", 151 .d_name = "vordog",
158 }; 152 };
153
154 /* Following implements a new bus device.
155 * It is attached under nexus bus, an on board device as `vordog0'.
156 */
159 157
160 static void vordog_identify(driver_t *driver, device_t parent) { 158 static void vordog_identify(driver_t *driver, device_t parent) {
161 device_t vordog; 159 device_t vordog;
162 160
163 /* make sure vordog device is not in the bus. */ 161 /* make sure vordog device is not in the bus. */