219d14fe5f
Executive is a library that can be used by standalone applications and kernels to abstract access to Octeon SoC and board-specific hardware and facilities. The FreeBSD port to Octeon will be updated to use this where possible.
332 lines
15 KiB
C
332 lines
15 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2007, Cavium Networks. All rights reserved.
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*
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* This software file (the "File") is owned and distributed by Cavium
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* Networks ("Cavium") under the following dual licensing option: The dual
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* licensing option gives you, the licensee, the choice between the following
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* alternative licensing terms. Once you have made an election to use the
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* File under one of the following alternative licensing terms (license
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* types) you are bound by the respective terms and you may distribute the
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* file (or any derivative thereof), to the extent allowed by the respective
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* licensing term, only if you (i) delete this introductory statement
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* regarding the dual licensing option from the file you will distribute,
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* (ii) delete the licensing term that you have elected NOT to use from the
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* file you will distribute and (iii) follow the respective licensing term
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* that you have elected to use with respect to the correct attribution or
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* licensing term that you have to include with your distribution.
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*
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* ***
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* OCTEON SDK License Type 2:
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*
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* IMPORTANT: Read this Agreement carefully before clicking on the "I accept"
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* button to download the Software and/or before using the Software. This
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* License Agreement (the "Agreement") is a legal agreement between you,
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* either an individual or a single legal entity ("You" or "you"), and Cavium
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* software that can be downloaded after accepting this Agreement and/or that
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* Software, you are indicating that you have read and understood, and assent
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* to be bound by, the terms of this Agreement. If you do not agree to the
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* terms of the Agreement, you are not granted any rights whatsoever in the
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* Software. If you are not willing to be bound by these terms and
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* conditions, you should not use or cease all use of the Software. This
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* Software is the property of Cavium Networks and constitutes the
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* proprietary information of Cavium Networks. You agree to take reasonable
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* steps to prevent the disclosure, unauthorized use or unauthorized
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* distribution of the Software to any third party.
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* License Grant. Subject to the terms and conditions of this Agreement,
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* and royalty-free license to
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* solely for your internal use and only (a) on hardware manufactured by
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* breach any of the terms hereof. You may terminate this Agreement at any
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* Clara County and each party hereby submits to the personal jurisdiction of
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* prohibit or restrict Cavium from filing for and obtaining injunctive
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* relief from any court of competent jurisdiction. The United Nations
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* with the other provisions remaining in full force and effect. Any notice
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* to you may be provided by email. This Agreement constitutes the entire
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* agreement between the parties and supersedes all prior or contemporaneous,
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* agreements, understandings and communications between the parties, whether
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* written or oral, pertaining to the subject matter hereof. Any
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* modifications of this Agreement must be in writing and agreed to by both
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* parties.
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*
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* Copyright (c) 2003-2007, Cavium Networks. All rights reserved.
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*
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* ***
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*
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* OCTEON SDK License Type 4:
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*
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* Author: Cavium Networks
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*
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* Contact: support@caviumnetworks.com
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* This file is part of the OCTEON SDK
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*
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* Copyright (c) 2007 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as published by
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* the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful,
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* but AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
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* See the GNU General Public License for more details.
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* it under the terms of the GNU General Public License, Version 2, as published by
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* the Free Software Foundation.
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*
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* You should have received a copy of the GNU General Public License
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* along with this file; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* or visit http://www.gnu.org/licenses/.
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*
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* This file may also be available under a different license from Cavium.
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* Contact Cavium Networks for more information
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***********************license end**************************************/
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#ifndef __CVMX_TWSI_RAW_H__
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#define __CVMX_TWSI_RAW_H__
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/* Addresses for twsi 8-bit registers. Gets written to EOP_IA field of MIO_TWS_SW_TWSI reg
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* when OP = 6 and SLONLY =0 */
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#define TWSI_SLAVE_ADD_REG 0
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#define TWSI_DATA_REG 1
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#define TWSI_CTL_REG 2
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#define TWSI_STAT_REG 3 /* read only */
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#define TWSI_CLKCTL_REG 3 /* write only */
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#define TWSI_SLAVE_EXTADD_REG 4
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#define TWSI_RST_REG 7
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/* twsi core slave address reg */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t slave_addr7 : 7;
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uint8_t gce : 1;
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}s;
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} octeon_twsi_slave_add_t;
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/* twsi core 10-bit slave address reg */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t slave_addr8 : 8;
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}s;
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} octeon_twsi_slave_extadd_t;
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/* twsi core control register */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t ce : 1; /* enable HLC*/
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uint8_t enab : 1; /* bus enable */
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uint8_t sta : 1; /* start request */
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uint8_t stp : 1; /* stop request */
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uint8_t iflg : 1; /* interrupt flag - request completed (1) start new (0) */
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uint8_t aak : 1; /* assert ack (1) -neg ack at end of Rx sequence */
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uint8_t rsv : 2; /* not used */
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}s;
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} octeon_twsi_ctl_t;
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/* clock dividers register */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t m_divider : 4;
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uint8_t n_divider : 3;
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}s;
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} octeon_twsi_clkctl_t;
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/* address of the remote slave + r/w bit */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t slave_addr7 : 7;
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uint8_t r : 1; /* read (1) write (0) bit */
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}s;
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} octeon_twsi_addr_t;
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/* core state reg */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t stat : 8;
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}s;
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} octeon_twsi_stat_t;
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/* data byte reg */
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typedef union{
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uint8_t u8;
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struct{
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uint8_t data : 8;
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}s;
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} octeon_twsi_data_t;
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/* twsi core states as reported in twsi core stat register */
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#define TWSI_BUS_ERROR 0x00
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#define TWSI_START_TXED 0x08
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#define TWSI_ADDR_W_TX_ACK_RXED 0x18
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#define TWSI_ADDR_W_TX_NACK_RXED 0x20
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#define TWSI_DATA_TX_ACK_RXED 0x28
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#define TWSI_DATA_TX_NACK_RXED 0x30
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#define TWSI_ARB_LOST 0x38
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#define TWSI_ADDR_R_TX_ACK_RXED 0x40
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#define TWSI_ADDR_R_TX_NACK_RXED 0x48
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#define TWSI_DATA_RX_ACK_TXED 0x50
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#define TWSI_DATA_RX_NACK_TXED 0x58
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#define TWSI_SLAVE_ADDR_RX_ACK_TXED 0x60
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#define TWSI_ARB_LOST_SLAVE_ADDR_RX 0x68
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#define TWSI_GEN_ADDR_RXED_ACK_TXED 0x70
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#define TWSI_ARB_LOST_GEN_ADDR_RXED 0x78
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#define TWSI_SLAVE_DATA_RX_ACK_TXED 0x80
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#define TWSI_SLAVE_DATA_RX_NACK_TXED 0x88
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#define TWSI_GEN_DATA_RX_ACK_TXED 0x90
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#define TWSI_GEN_DATA_RX_NACK_TXED 0x98
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#define TWSI_SLAVE_STOP_OR_START_RXED 0xa0
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#define TWSI_SLAVE_ADDR_R_RX_ACK_TXED 0xa8
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#define TWSI_ARB_LOST_SLAVE_ADDR_R_RX_ACK_TXED 0xb0
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#define TWSI_SLAVE_DATA_TX_ACK_RXED 0xb8
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#define TWSI_SLAVE_DATA_TX_NACK_RXED 0xc0
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#define TWSI_SLAVE_LAST_DATA_TX_ACK_RXED 0xc8
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#define TWSI_SECOND_ADDR_W_TX_ACK_RXED 0xd0
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#define TWSI_SECOND_ADDR_W_TX_NACK_RXED 0xd8
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#define TWSI_IDLE 0xf8
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#ifndef LINUX
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/* msg definition similar to Linux */
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struct i2c_msg {
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uint16_t addr; /* slave address */
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uint16_t flags;
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uint16_t len; /* msg length */
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uint8_t *buf; /* pointer to msg data */
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};
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#define I2C_M_TEN 0x10 /* we have a ten bit chip address */
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#define I2C_M_RD 0x01
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#endif
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int octeon_i2c_xfer_msg_raw(int twsi_id, struct i2c_msg *msg);
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#endif
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