Ignore:
Timestamp:
2011-11-13T22:18:58Z (13 years ago)
Author:
Jan Vesely <jano.vesely@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
8a5962f
Parents:
e6def65
Message:

libc, libdrv: Add support for DMA channel handling.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • uspace/lib/drv/generic/remote_hw_res.c

    re6def65 r9991c47  
    4343static void remote_hw_res_enable_interrupt(ddf_fun_t *, void *, ipc_callid_t,
    4444    ipc_call_t *);
     45static void remote_hw_res_dma_channel_setup(ddf_fun_t *, void *, ipc_callid_t,
     46    ipc_call_t *);
    4547
    4648static remote_iface_func_ptr_t remote_hw_res_iface_ops [] = {
    47         &remote_hw_res_get_resource_list,
    48         &remote_hw_res_enable_interrupt
     49        [HW_RES_GET_RESOURCE_LIST] = &remote_hw_res_get_resource_list,
     50        [HW_RES_ENABLE_INTERRUPT] = &remote_hw_res_enable_interrupt,
     51        [HW_RES_DMA_CHANNEL_SETUP] = &remote_hw_res_dma_channel_setup,
    4952};
    5053
     
    9497}
    9598
     99static void remote_hw_res_dma_channel_setup(ddf_fun_t *fun, void *ops,
     100    ipc_callid_t callid, ipc_call_t *call)
     101{
     102        hw_res_ops_t *hw_res_ops = ops;
     103
     104        if (hw_res_ops->dma_channel_setup == NULL) {
     105                async_answer_0(callid, ENOTSUP);
     106                return;
     107        }
     108        const unsigned channel = DEV_IPC_GET_ARG1(*call);
     109        const uint32_t address = DEV_IPC_GET_ARG2(*call);
     110        const uint16_t size = DEV_IPC_GET_ARG3(*call) & 0xffff;
     111        const uint8_t mode = DEV_IPC_GET_ARG3(*call) >> 16;
     112
     113        const int ret = hw_res_ops->dma_channel_setup(
     114            channel, address, size, mode);
     115        async_answer_0(callid, ret);
     116}
     117
    96118/**
    97119 * @}
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