Lines Matching defs:syscon
29 * This is a generic syscon driver, whose purpose is to provide access to
58 #include "syscon.h"
63 typedef TAILQ_HEAD(syscon_list, syscon) syscon_list_t;
68 static int syscon_method_init(struct syscon *syscon);
69 static int syscon_method_uninit(struct syscon *syscon);
70 static uint32_t syscon_method_read_4(struct syscon *syscon, bus_size_t offset);
71 static int syscon_method_write_4(struct syscon *syscon, bus_size_t offset,
73 static int syscon_method_modify_4(struct syscon *syscon, bus_size_t offset,
77 MALLOC_DEFINE(M_SYSCON, "syscon", "Syscon driver");
95 DEFINE_CLASS_0(syscon, syscon_class, syscon_methods, 0);
104 * Default syscon methods for base class.
107 syscon_method_init(struct syscon *syscon)
114 syscon_method_uninit(struct syscon *syscon)
121 syscon_get_softc(struct syscon *syscon)
124 return (syscon->softc);
128 syscon_method_read_4(struct syscon *syscon, bus_size_t offset)
132 SYSCON_DEVICE_LOCK(syscon->pdev);
133 val = SYSCON_UNLOCKED_READ_4(syscon, offset);
134 SYSCON_DEVICE_UNLOCK(syscon->pdev);
139 syscon_method_write_4(struct syscon *syscon, bus_size_t offset, uint32_t val)
143 SYSCON_DEVICE_LOCK(syscon->pdev);
144 rv = SYSCON_UNLOCKED_WRITE_4(syscon, offset, val);
145 SYSCON_DEVICE_UNLOCK(syscon->pdev);
150 syscon_method_modify_4(struct syscon *syscon, bus_size_t offset,
155 SYSCON_DEVICE_LOCK(syscon->pdev);
156 rv = SYSCON_UNLOCKED_MODIFY_4(syscon, offset, clear_bits, set_bits);
157 SYSCON_DEVICE_UNLOCK(syscon->pdev);
161 * Create and initialize syscon object, but do not register it.
163 struct syscon *
166 struct syscon *syscon;
169 syscon = malloc(sizeof(struct syscon), M_SYSCON,
171 kobj_init((kobj_t)syscon, (kobj_class_t)syscon_class);
175 syscon->softc = malloc(syscon_class->size, M_SYSCON,
179 syscon->pdev = pdev;
180 return (syscon);
183 /* Register syscon object. */
184 struct syscon *
185 syscon_register(struct syscon *syscon)
190 if (syscon->ofw_node <= 0)
191 syscon->ofw_node = ofw_bus_get_node(syscon->pdev);
192 if (syscon->ofw_node <= 0)
196 rv = SYSCON_INIT(syscon);
203 OF_device_register_xref(OF_xref_from_node(syscon->ofw_node),
204 syscon->pdev);
207 TAILQ_INSERT_TAIL(&syscon_list, syscon, syscon_link);
209 return (syscon);
213 syscon_unregister(struct syscon *syscon)
217 TAILQ_REMOVE(&syscon_list, syscon, syscon_link);
220 OF_device_register_xref(OF_xref_from_node(syscon->ofw_node), NULL);
222 return (SYSCON_UNINIT(syscon));
229 static struct syscon *
232 struct syscon *entry;
244 struct syscon *
248 struct syscon *syscon;
250 syscon = syscon_create(pdev, syscon_class);
251 if (syscon == NULL)
253 syscon->ofw_node = node;
254 if (syscon_register(syscon) == NULL)
256 return (syscon);
260 syscon_get_ofw_node(struct syscon *syscon)
263 return (syscon->ofw_node);
267 syscon_get_by_ofw_node(device_t cdev, phandle_t node, struct syscon **syscon)
271 *syscon = syscon_find_by_ofw_node(node);
272 if (*syscon == NULL) {
274 device_printf(cdev, "Failed to find syscon node\n");
283 struct syscon **syscon)
300 /* Translate to syscon node. */
302 *syscon = syscon_find_by_ofw_node(OF_node_from_xref(cells[0]));
303 if (*syscon == NULL) {
305 device_printf(cdev, "Failed to find syscon node\n");