kernel-ark/arch/tile/include/gxio/iorpc_uart.h
Chris Metcalf 6ec006ede5 tilegx: provide kernel support for the tilegx UART shim
The TILE-Gx chip includes an on-chip UART.  This change adds support
for using the UART from within the kernel.  The UART shim has more
functionality than is exposed here, but to keep the kernel code and
binary simpler, this is a subset of the full API designed to enable
a standard Linux tty serial driver only.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2013-09-03 14:50:36 -04:00

41 lines
1.4 KiB
C

/*
* Copyright 2013 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*/
/* This file is machine-generated; DO NOT EDIT! */
#ifndef __GXIO_UART_LINUX_RPC_H__
#define __GXIO_UART_LINUX_RPC_H__
#include <hv/iorpc.h>
#include <hv/drv_uart_intf.h>
#include <gxio/uart.h>
#include <gxio/kiorpc.h>
#include <linux/string.h>
#include <linux/module.h>
#include <asm/pgtable.h>
#define GXIO_UART_OP_CFG_INTERRUPT IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1900)
#define GXIO_UART_OP_GET_MMIO_BASE IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000)
#define GXIO_UART_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001)
int gxio_uart_cfg_interrupt(gxio_uart_context_t *context, int inter_x,
int inter_y, int inter_ipi, int inter_event);
int gxio_uart_get_mmio_base(gxio_uart_context_t *context, HV_PTE *base);
int gxio_uart_check_mmio_offset(gxio_uart_context_t *context,
unsigned long offset, unsigned long size);
#endif /* !__GXIO_UART_LINUX_RPC_H__ */