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Diffstat (limited to 'octeon-pci-console.h')
-rw-r--r-- | octeon-pci-console.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/octeon-pci-console.h b/octeon-pci-console.h new file mode 100644 index 0000000000000..d5f06154d5f8f --- /dev/null +++ b/octeon-pci-console.h @@ -0,0 +1,138 @@ +/***********************license start*************** + * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights + * reserved. + * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * * Neither the name of Cavium Networks nor the names of + * its contributors may be used to endorse or promote products + * derived from this software without specific prior written + * permission. + * + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" + * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS + * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH + * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY + * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT + * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES + * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR + * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET + * POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT + * OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. + * + * + * For any questions regarding licensing please contact marketing@caviumnetworks.com + * + ***********************license end**************************************/ + + + + + + + +#ifndef __OCTEON_PCI_CONSOLE_H__ +#define __OCTEON_PCI_CONSOLE_H__ + +#include "cvmx-platform.h" + +/* Current versions */ +#define OCTEON_PCI_CONSOLE_MAJOR_VERSION 1 +#define OCTEON_PCI_CONSOLE_MINOR_VERSION 0 + +#define OCTEON_PCI_CONSOLE_BLOCK_NAME "__pci_console" + + +/* Structure that defines a single console. + + +* Note: when read_index == write_index, the buffer is empty. The actual usable size +* of each console is console_buf_size -1; +*/ +typedef struct { + uint64_t input_base_addr; + uint32_t input_read_index; + uint32_t input_write_index; + uint64_t output_base_addr; + uint32_t output_read_index; + uint32_t output_write_index; + uint32_t lock; + uint32_t buf_size; +} octeon_pci_console_t; + + +/* This is the main container structure that contains all the information +about all PCI consoles. The address of this structure is passed to various +routines that operation on PCI consoles. +*/ +typedef struct { + uint32_t major_version; + uint32_t minor_version; + uint32_t lock; + uint32_t flags; + uint32_t num_consoles; + uint32_t pad; + /* must be 64 bit aligned here... */ + uint64_t console_addr_array[0]; /* Array of addresses of octeon_pci_console_t structures */ + /* Implicit storage for console_addr_array */ +} octeon_pci_console_desc_t; + + +/* Flag definitions for octeon_pci_console_desc_t */ +enum { + OCT_PCI_CON_DESC_FLAG_PERCPU = 1 << 0, /* If set, output from core N will be sent to console N */ +}; + +#if defined(OCTEON_TARGET) && !defined(__linux__) +/** + * This is an internal-only function that is called from within the simple executive + * C library, and is not intended for any other use. + * + * @param fd + * @param buf + * @param nbytes + * + * @return + */ +int __cvmx_pci_console_write (int fd, char *buf, int nbytes); +#endif + + +#ifdef CVMX_BUILD_FOR_UBOOT +uint64_t octeon_pci_console_init(int num_consoles, int buffer_size); +#endif + +/* Flag definitions for read/write functions */ +enum { + OCT_PCI_CON_FLAG_NONBLOCK = 1 << 0, /* If set, read/write functions won't block waiting for space or data. + * For reads, 0 bytes may be read, and for writes not all of the + * supplied data may be written.*/ +}; + +#if !defined(__linux__) || defined(__KERNEL__) +int octeon_pci_console_write(uint64_t console_desc_addr, unsigned int console_num, const char * buffer, int bytes_to_write, uint32_t flags); +int octeon_pci_console_write_avail(uint64_t console_desc_addr, unsigned int console_num); + +int octeon_pci_console_read(uint64_t console_desc_addr, unsigned int console_num, char * buffer, int buffer_size, uint32_t flags); +int octeon_pci_console_read_avail(uint64_t console_desc_addr, unsigned int console_num); +#endif + +#if !defined(OCTEON_TARGET) && defined(__linux__) && !defined(__KERNEL__) +int octeon_pci_console_host_write(uint64_t console_desc_addr, unsigned int console_num, const char * buffer, int write_reqest_size, uint32_t flags); +int octeon_pci_console_host_write_avail(uint64_t console_desc_addr, unsigned int console_num); + +int octeon_pci_console_host_read(uint64_t console_desc_addr, unsigned int console_num, char * buffer, int buf_size, uint32_t flags); +int octeon_pci_console_host_read_avail(uint64_t console_desc_addr, unsigned int console_num); +#endif +#endif |