Release 4.16 drivers/staging/fsl-mc/bus/dpmcp.c
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright 2013-2016 Freescale Semiconductor Inc.
*
*/
#include <linux/kernel.h>
#include "../include/mc.h"
#include "fsl-mc-private.h"
/**
* dpmcp_open() - Open a control session for the specified object.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @dpmcp_id: DPMCP unique ID
* @token: Returned token; use in subsequent API calls
*
* This function can be used to open a control session for an
* already created object; an object may have been declared in
* the DPL or by calling the dpmcp_create function.
* This function returns a unique authentication token,
* associated with the specific object ID and the specific MC
* portal; this token must be used in all subsequent commands for
* this specific object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int dpmcp_id,
u16 *token)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_open *cmd_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN,
cmd_flags, 0);
cmd_params = (struct dpmcp_cmd_open *)cmd.params;
cmd_params->dpmcp_id = cpu_to_le32(dpmcp_id);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
*token = mc_cmd_hdr_read_token(&cmd);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| J. German Rivera | 81 | 80.20% | 3 | 75.00% |
| Ioana Radulescu | 20 | 19.80% | 1 | 25.00% |
| Total | 101 | 100.00% | 4 | 100.00% |
/**
* dpmcp_close() - Close the control session of the object
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPMCP object
*
* After this function is called, no further operations are
* allowed on the object without opening a new control session.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_close(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| J. German Rivera | 48 | 100.00% | 3 | 100.00% |
| Total | 48 | 100.00% | 3 | 100.00% |
/**
* dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPMCP object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_reset(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| J. German Rivera | 48 | 100.00% | 3 | 100.00% |
| Total | 48 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| J. German Rivera | 184 | 87.20% | 4 | 44.44% |
| Ioana Radulescu | 20 | 9.48% | 1 | 11.11% |
| Tudor Laurentiu | 4 | 1.90% | 2 | 22.22% |
| Bogdan Purcareata | 3 | 1.42% | 2 | 22.22% |
| Total | 211 | 100.00% | 9 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.