| 58 | } |
| 59 | |
| 60 | rt_err_t rt_dma_controller_unregister(struct rt_dma_controller *ctrl) |
| 61 | { |
| 62 | if (!ctrl) |
| 63 | { |
| 64 | return -RT_EINVAL; |
| 65 | } |
| 66 | |
| 67 | rt_mutex_take(&ctrl->mutex, RT_WAITING_FOREVER); |
| 68 | |
| 69 | if (!rt_list_isempty(&ctrl->channels_nodes)) |
| 70 | { |
| 71 | rt_mutex_release(&ctrl->mutex); |
| 72 | return -RT_EBUSY; |
| 73 | } |
| 74 | |
| 75 | if (ctrl->dev->ofw_node) |
| 76 | { |
| 77 | rt_dm_dev_unbind_fwdata(ctrl->dev, RT_NULL); |
| 78 | } |
| 79 | |
| 80 | rt_mutex_release(&ctrl->mutex); |
| 81 | rt_mutex_detach(&ctrl->mutex); |
| 82 | |
| 83 | rt_spin_lock(&dmac_nodes_lock); |
| 84 | rt_list_remove(&ctrl->list); |
| 85 | rt_spin_unlock(&dmac_nodes_lock); |
| 86 | |
| 87 | return RT_EOK; |
| 88 | } |
| 89 | |
| 90 | rt_err_t rt_dma_chan_start(struct rt_dma_chan *chan) |
| 91 | { |
nothing calls this directly
no test coverage detected