cregit-Linux how code gets into the kernel

Release 4.11 drivers/staging/fsl-mc/include/mc-cmd.h

/*
 * Copyright 2013-2016 Freescale Semiconductor Inc.
 *
 * 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 the above-listed copyright holders nor the
 * names of any contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 *
 *
 * ALTERNATIVELY, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") as published by the Free Software
 * Foundation, either version 2 of that License or (at your option) any
 * later version.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef __FSL_MC_CMD_H

#define __FSL_MC_CMD_H


#define MC_CMD_NUM_OF_PARAMS	7


struct mc_cmd_header {
	
u8 src_id;
	
u8 flags_hw;
	
u8 status;
	
u8 flags_sw;
	
__le16 token;
	
__le16 cmd_id;
};


struct mc_command {
	
u64 header;
	
u64 params[MC_CMD_NUM_OF_PARAMS];
};


struct mc_rsp_create {
	
__le32 object_id;
};


struct mc_rsp_api_ver {
	
__le16 major_ver;
	
__le16 minor_ver;
};


enum mc_cmd_status {
	
MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
	
MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
	
MC_CMD_STATUS_AUTH_ERR = 0x3, /* Authentication error */
	
MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /* No privilege */
	
MC_CMD_STATUS_DMA_ERR = 0x5, /* DMA or I/O error */
	
MC_CMD_STATUS_CONFIG_ERR = 0x6, /* Configuration error */
	
MC_CMD_STATUS_TIMEOUT = 0x7, /* Operation timed out */
	
MC_CMD_STATUS_NO_RESOURCE = 0x8, /* No resources */
	
MC_CMD_STATUS_NO_MEMORY = 0x9, /* No memory available */
	
MC_CMD_STATUS_BUSY = 0xA, /* Device is busy */
	
MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /* Unsupported operation */
	
MC_CMD_STATUS_INVALID_STATE = 0xC /* Invalid state */
};

/*
 * MC command flags
 */

/* High priority flag */

#define MC_CMD_FLAG_PRI		0x80
/* Command completion flag */

#define MC_CMD_FLAG_INTR_DIS	0x01


static inline u64 mc_encode_cmd_header(u16 cmd_id, u32 cmd_flags, u16 token) { u64 header = 0; struct mc_cmd_header *hdr = (struct mc_cmd_header *)&header; hdr->cmd_id = cpu_to_le16(cmd_id); hdr->token = cpu_to_le16(token); hdr->status = MC_CMD_STATUS_READY; if (cmd_flags & MC_CMD_FLAG_PRI) hdr->flags_hw = MC_CMD_FLAG_PRI; if (cmd_flags & MC_CMD_FLAG_INTR_DIS) hdr->flags_sw = MC_CMD_FLAG_INTR_DIS; return header; }

Contributors

PersonTokensPropCommitsCommitProp
Ioana Radulescu5261.18%125.00%
J. German Rivera3338.82%375.00%
Total85100.00%4100.00%


static inline u16 mc_cmd_hdr_read_token(struct mc_command *cmd) { struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header; u16 token = le16_to_cpu(hdr->token); return token; }

Contributors

PersonTokensPropCommitsCommitProp
Ioana Radulescu3792.50%133.33%
Ioana Ciornei25.00%133.33%
J. German Rivera12.50%133.33%
Total40100.00%3100.00%


static inline u32 mc_cmd_read_object_id(struct mc_command *cmd) { struct mc_rsp_create *rsp_params; rsp_params = (struct mc_rsp_create *)cmd->params; return le32_to_cpu(rsp_params->object_id); }

Contributors

PersonTokensPropCommitsCommitProp
Ioana Ciornei3391.67%133.33%
J. German Rivera25.56%133.33%
Ioana Radulescu12.78%133.33%
Total36100.00%3100.00%


static inline void mc_cmd_read_api_version(struct mc_command *cmd, u16 *major_ver, u16 *minor_ver) { struct mc_rsp_api_ver *rsp_params; rsp_params = (struct mc_rsp_api_ver *)cmd->params; *major_ver = le16_to_cpu(rsp_params->major_ver); *minor_ver = le16_to_cpu(rsp_params->minor_ver); }

Contributors

PersonTokensPropCommitsCommitProp
Ioana Ciornei56100.00%1100.00%
Total56100.00%1100.00%

#endif /* __FSL_MC_CMD_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
J. German Rivera13838.12%350.00%
Ioana Radulescu11331.22%116.67%
Ioana Ciornei11030.39%116.67%
Stuart Yoder10.28%116.67%
Total362100.00%6100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.