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32 #include <linux/kernel.h>
33 #include "../include/mc.h"
34 #include "../include/mc-cmd.h"
37 #include "dpmcp-cmd.h"
40 * dpmcp_open() - Open a control session for the specified object.
41 * @mc_io: Pointer to MC portal's I/O object
42 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
43 * @dpmcp_id: DPMCP unique ID
44 * @token: Returned token; use in subsequent API calls
46 * This function can be used to open a control session for an
47 * already created object; an object may have been declared in
48 * the DPL or by calling the dpmcp_create function.
49 * This function returns a unique authentication token,
50 * associated with the specific object ID and the specific MC
51 * portal; this token must be used in all subsequent commands for
52 * this specific object
54 * Return: '0' on Success; Error code otherwise.
56 int dpmcp_open(struct fsl_mc_io *mc_io,
61 struct mc_command cmd = { 0 };
62 struct dpmcp_cmd_open *cmd_params;
66 cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN,
68 cmd_params = (struct dpmcp_cmd_open *)cmd.params;
69 cmd_params->dpmcp_id = cpu_to_le32(dpmcp_id);
71 /* send command to mc*/
72 err = mc_send_command(mc_io, &cmd);
76 /* retrieve response parameters */
77 *token = mc_cmd_hdr_read_token(&cmd);
83 * dpmcp_close() - Close the control session of the object
84 * @mc_io: Pointer to MC portal's I/O object
85 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
86 * @token: Token of DPMCP object
88 * After this function is called, no further operations are
89 * allowed on the object without opening a new control session.
91 * Return: '0' on Success; Error code otherwise.
93 int dpmcp_close(struct fsl_mc_io *mc_io,
97 struct mc_command cmd = { 0 };
100 cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE,
103 /* send command to mc*/
104 return mc_send_command(mc_io, &cmd);
108 * dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
109 * @mc_io: Pointer to MC portal's I/O object
110 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
111 * @token: Token of DPMCP object
113 * Return: '0' on Success; Error code otherwise.
115 int dpmcp_reset(struct fsl_mc_io *mc_io,
119 struct mc_command cmd = { 0 };
121 /* prepare command */
122 cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET,
125 /* send command to mc*/
126 return mc_send_command(mc_io, &cmd);
130 * dpmcp_get_api_version - Get Data Path Management Command Portal API version
131 * @mc_io: Pointer to Mc portal's I/O object
132 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
133 * @major_ver: Major version of Data Path Management Command Portal API
134 * @minor_ver: Minor version of Data Path Management Command Portal API
136 * Return: '0' on Success; Error code otherwise.
138 int dpmcp_get_api_version(struct fsl_mc_io *mc_io,
143 struct mc_command cmd = { 0 };
146 /* prepare command */
147 cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_API_VERSION,
150 /* send command to mc */
151 err = mc_send_command(mc_io, &cmd);
155 /* retrieve response parameters */
156 mc_cmd_read_api_version(&cmd, major_ver, minor_ver);