| /* |
| * Copyright (c) 2012 Corey Tabaka |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include <dev/driver.h> |
| #include <assert.h> |
| #include <err.h> |
| #include <trace.h> |
| |
| extern struct device __devices[]; |
| extern struct device __devices_end[]; |
| |
| status_t device_init_all(void) |
| { |
| status_t res = NO_ERROR; |
| |
| struct device *dev = __devices; |
| while (dev != __devices_end) { |
| status_t code = device_init(dev); |
| |
| if (code < 0) { |
| TRACEF("Driver init failed for driver \"%s\", device \"%s\", reason %d\n", |
| dev->driver->type, dev->name, code); |
| |
| res = code; |
| } |
| |
| dev++; |
| } |
| |
| return res; |
| } |
| |
| status_t device_fini_all(void) |
| { |
| status_t res = NO_ERROR; |
| |
| struct device *dev = __devices; |
| while (dev != __devices_end) { |
| status_t code = device_fini(dev); |
| |
| if (code < 0) { |
| TRACEF("Driver fini failed for driver \"%s\", device \"%s\", reason %d\n", |
| dev->driver->type, dev->name, code); |
| |
| res = code; |
| } |
| |
| dev++; |
| } |
| |
| return res; |
| } |
| |
| status_t device_init(struct device *dev) |
| { |
| if (!dev) |
| return ERR_INVALID_ARGS; |
| |
| DEBUG_ASSERT(dev->driver); |
| |
| const struct driver_ops *ops = dev->driver->ops; |
| |
| if (ops && ops->init) |
| return ops->init(dev); |
| else |
| return ERR_NOT_SUPPORTED; |
| } |
| |
| status_t device_fini(struct device *dev) |
| { |
| if (!dev) |
| return ERR_INVALID_ARGS; |
| |
| DEBUG_ASSERT(dev->driver); |
| |
| const struct driver_ops *ops = dev->driver->ops; |
| |
| if (ops && ops->fini) |
| return ops->fini(dev); |
| else |
| return ERR_NOT_SUPPORTED; |
| } |
| |
| status_t device_suspend(struct device *dev) |
| { |
| if (!dev) |
| return ERR_NOT_SUPPORTED; |
| |
| DEBUG_ASSERT(dev->driver); |
| |
| const struct driver_ops *ops = dev->driver->ops; |
| |
| if (ops && ops->suspend) |
| return ops->suspend(dev); |
| else |
| return ERR_NOT_SUPPORTED; |
| } |
| |
| status_t device_resume(struct device *dev) |
| { |
| if (!dev) |
| return ERR_NOT_SUPPORTED; |
| |
| DEBUG_ASSERT(dev->driver); |
| |
| const struct driver_ops *ops = dev->driver->ops; |
| |
| if (ops && ops->resume) |
| return ops->resume(dev); |
| else |
| return ERR_NOT_SUPPORTED; |
| } |
| |