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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2024 Ventana Micro Systems Inc.
*
* Authors:
* Anup Patel <apatel@ventanamicro.com>
*/
#include <sbi/sbi_ecall.h>
#include <sbi/sbi_ecall_interface.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_trap.h>
#include <sbi/sbi_mpxy.h>
static int sbi_ecall_mpxy_handler(unsigned long extid, unsigned long funcid,
struct sbi_trap_regs *regs,
struct sbi_ecall_return *out)
{
int ret = 0;
switch (funcid) {
case SBI_EXT_MPXY_GET_SHMEM_SIZE:
out->value = sbi_mpxy_get_shmem_size();
break;
case SBI_EXT_MPXY_SET_SHMEM:
ret = sbi_mpxy_set_shmem(regs->a0, regs->a1, regs->a2);
break;
case SBI_EXT_MPXY_GET_CHANNEL_IDS:
ret = sbi_mpxy_get_channel_ids(regs->a0);
break;
case SBI_EXT_MPXY_READ_ATTRS:
ret = sbi_mpxy_read_attrs(regs->a0, regs->a1, regs->a2);
break;
case SBI_EXT_MPXY_WRITE_ATTRS:
ret = sbi_mpxy_write_attrs(regs->a0, regs->a1, regs->a2);
break;
case SBI_EXT_MPXY_SEND_MSG_WITH_RESP:
ret = sbi_mpxy_send_message(regs->a0, regs->a1,
regs->a2, &out->value);
break;
case SBI_EXT_MPXY_SEND_MSG_WITHOUT_RESP:
ret = sbi_mpxy_send_message(regs->a0, regs->a1, regs->a2,
NULL);
break;
case SBI_EXT_MPXY_GET_NOTIFICATION_EVENTS:
ret = sbi_mpxy_get_notification_events(regs->a0, &out->value);
break;
default:
ret = SBI_ENOTSUPP;
}
return ret;
}
struct sbi_ecall_extension ecall_mpxy;
static int sbi_ecall_mpxy_register_extensions(void)
{
if (!sbi_mpxy_channel_available())
return 0;
return sbi_ecall_register_extension(&ecall_mpxy);
}
struct sbi_ecall_extension ecall_mpxy = {
.name = "mpxy",
.extid_start = SBI_EXT_MPXY,
.extid_end = SBI_EXT_MPXY,
.experimental = true,
.register_extensions = sbi_ecall_mpxy_register_extensions,
.handle = sbi_ecall_mpxy_handler,
};
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