| 1 | /*
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| 2 | * Copyright (c) 2010 Lenka Trochtova
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| 3 | * Copyright (c) 2011 Jan Vesely
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup libdrv
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| 31 | * @{
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| 32 | */
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| 33 | /** @file
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| 34 | */
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| 35 |
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| 36 | #include <async.h>
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| 37 | #include <errno.h>
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| 38 |
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| 39 | #include "ops/hw_res.h"
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| 40 | #include "ddf/driver.h"
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| 41 |
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| 42 | static void remote_hw_res_get_resource_list(ddf_fun_t *, void *, ipc_callid_t,
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| 43 | ipc_call_t *);
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| 44 | static void remote_hw_res_enable_interrupt(ddf_fun_t *, void *, ipc_callid_t,
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| 45 | ipc_call_t *);
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| 46 | static void remote_hw_res_dma_channel_setup(ddf_fun_t *, void *, ipc_callid_t,
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| 47 | ipc_call_t *);
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| 48 |
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| 49 | static remote_iface_func_ptr_t remote_hw_res_iface_ops [] = {
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| 50 | [HW_RES_GET_RESOURCE_LIST] = &remote_hw_res_get_resource_list,
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| 51 | [HW_RES_ENABLE_INTERRUPT] = &remote_hw_res_enable_interrupt,
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| 52 | [HW_RES_DMA_CHANNEL_SETUP] = &remote_hw_res_dma_channel_setup,
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| 53 | };
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| 54 |
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| 55 | remote_iface_t remote_hw_res_iface = {
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| 56 | .method_count = sizeof(remote_hw_res_iface_ops) /
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| 57 | sizeof(remote_iface_func_ptr_t),
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| 58 | .methods = remote_hw_res_iface_ops
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| 59 | };
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| 60 |
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| 61 | static void remote_hw_res_enable_interrupt(ddf_fun_t *fun, void *ops,
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| 62 | ipc_callid_t callid, ipc_call_t *call)
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| 63 | {
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| 64 | hw_res_ops_t *hw_res_ops = (hw_res_ops_t *) ops;
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| 65 |
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| 66 | if (hw_res_ops->enable_interrupt == NULL)
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| 67 | async_answer_0(callid, ENOTSUP);
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| 68 | else if (hw_res_ops->enable_interrupt(fun))
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| 69 | async_answer_0(callid, EOK);
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| 70 | else
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| 71 | async_answer_0(callid, EREFUSED);
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| 72 | }
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| 73 |
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| 74 | static void remote_hw_res_get_resource_list(ddf_fun_t *fun, void *ops,
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| 75 | ipc_callid_t callid, ipc_call_t *call)
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| 76 | {
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| 77 | hw_res_ops_t *hw_res_ops = (hw_res_ops_t *) ops;
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| 78 |
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| 79 | if (hw_res_ops->get_resource_list == NULL) {
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| 80 | async_answer_0(callid, ENOTSUP);
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| 81 | return;
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| 82 | }
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| 83 |
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| 84 | hw_resource_list_t *hw_resources = hw_res_ops->get_resource_list(fun);
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| 85 | if (hw_resources == NULL){
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| 86 | async_answer_0(callid, ENOENT);
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| 87 | return;
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| 88 | }
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| 89 |
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| 90 | async_answer_1(callid, EOK, hw_resources->count);
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| 91 |
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| 92 | size_t len;
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| 93 | if (!async_data_read_receive(&callid, &len)) {
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| 94 | /* Protocol error - the recipient is not accepting data */
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| 95 | return;
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| 96 | }
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| 97 | async_data_read_finalize(callid, hw_resources->resources, len);
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| 98 | }
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| 99 |
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| 100 | static void remote_hw_res_dma_channel_setup(ddf_fun_t *fun, void *ops,
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| 101 | ipc_callid_t callid, ipc_call_t *call)
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| 102 | {
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| 103 | hw_res_ops_t *hw_res_ops = ops;
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| 104 |
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| 105 | if (hw_res_ops->dma_channel_setup == NULL) {
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| 106 | async_answer_0(callid, ENOTSUP);
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| 107 | return;
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| 108 | }
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| 109 | const unsigned channel = DEV_IPC_GET_ARG1(*call);
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| 110 | const uint32_t address = DEV_IPC_GET_ARG2(*call);
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| 111 | const uint16_t size = DEV_IPC_GET_ARG3(*call) & 0xffff;
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| 112 | const uint8_t mode = DEV_IPC_GET_ARG3(*call) >> 16;
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| 113 |
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| 114 | const int ret = hw_res_ops->dma_channel_setup(
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| 115 | fun, channel, address, size, mode);
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| 116 | async_answer_0(callid, ret);
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| 117 | }
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| 118 |
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| 119 | /**
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| 120 | * @}
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| 121 | */
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