void remote_ahci_write_blocks(ddf_fun_t *fun, void *iface, ipc_callid_t callid,
ipc_call_t *call)
{
const ahci_iface_t *ahci_iface = (ahci_iface_t *) iface;
if (ahci_iface->read_blocks == NULL) {
async_answer_0(callid, ENOTSUP);
return;
}
size_t maxblock_size;
unsigned int flags;
ipc_callid_t cid;
async_share_out_receive(&cid, &maxblock_size, &flags);
void *buf;
async_share_out_finalize(cid, &buf);
const uint64_t blocknum =
(((uint64_t)(DEV_IPC_GET_ARG1(*call))) << 32) |
(((uint64_t)(DEV_IPC_GET_ARG2(*call))) & 0xffffffff);
const size_t cnt = (size_t) DEV_IPC_GET_ARG3(*call);
const int ret = ahci_iface->write_blocks(fun, blocknum, cnt, buf);
async_answer_0(callid, ret);
}
static void file_bd_connection(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
void *fs_va = NULL;
ipc_callid_t callid;
ipc_call_t call;
sysarg_t method;
size_t comm_size;
unsigned int flags;
int retval;
uint64_t ba;
size_t cnt;
/* Answer the IPC_M_CONNECT_ME_TO call. */
async_answer_0(iid, EOK);
if (!async_share_out_receive(&callid, &comm_size, &flags)) {
async_answer_0(callid, EHANGUP);
return;
}
(void) async_share_out_finalize(callid, &fs_va);
if (fs_va == AS_MAP_FAILED) {
async_answer_0(callid, EHANGUP);
return;
}
while (true) {
callid = async_get_call(&call);
method = IPC_GET_IMETHOD(call);
if (!method) {
/* The other side has hung up. */
async_answer_0(callid, EOK);
return;
}
switch (method) {
case BD_READ_BLOCKS:
ba = MERGE_LOUP32(IPC_GET_ARG1(call),
IPC_GET_ARG2(call));
cnt = IPC_GET_ARG3(call);
if (cnt * block_size > comm_size) {
retval = ELIMIT;
break;
}
retval = file_bd_read_blocks(ba, cnt, fs_va);
break;
case BD_WRITE_BLOCKS:
ba = MERGE_LOUP32(IPC_GET_ARG1(call),
IPC_GET_ARG2(call));
cnt = IPC_GET_ARG3(call);
if (cnt * block_size > comm_size) {
retval = ELIMIT;
break;
}
retval = file_bd_write_blocks(ba, cnt, fs_va);
break;
case BD_GET_BLOCK_SIZE:
async_answer_1(callid, EOK, block_size);
continue;
case BD_GET_NUM_BLOCKS:
async_answer_2(callid, EOK, LOWER32(num_blocks),
UPPER32(num_blocks));
continue;
default:
retval = EINVAL;
break;
}
async_answer_0(callid, retval);
}
}
