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authorLuca Boccassi <luca.boccassi@gmail.com>2017-11-08 14:15:11 +0000
committerLuca Boccassi <luca.boccassi@gmail.com>2017-11-08 14:45:54 +0000
commit055c52583a2794da8ba1e85a48cce3832372b12f (patch)
tree8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /drivers/bus/fslmc/mc/dpbp.c
parentf239aed5e674965691846e8ce3f187dd47523689 (diff)
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685 Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/bus/fslmc/mc/dpbp.c')
-rw-r--r--drivers/bus/fslmc/mc/dpbp.c182
1 files changed, 150 insertions, 32 deletions
diff --git a/drivers/bus/fslmc/mc/dpbp.c b/drivers/bus/fslmc/mc/dpbp.c
index fd9a52d9..a846245a 100644
--- a/drivers/bus/fslmc/mc/dpbp.c
+++ b/drivers/bus/fslmc/mc/dpbp.c
@@ -5,7 +5,7 @@
* BSD LICENSE
*
* Copyright 2013-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP.
+ * Copyright 2016-2017 NXP.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -42,19 +42,37 @@
#include <fsl_dpbp.h>
#include <fsl_dpbp_cmd.h>
+/**
+ * dpbp_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_'
+ * @dpbp_id: DPBP 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 dpbp_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 dpbp_open(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
int dpbp_id,
uint16_t *token)
{
+ struct dpbp_cmd_open *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
- cmd_flags,
- 0);
- DPBP_CMD_OPEN(cmd, dpbp_id);
+ cmd_flags, 0);
+ cmd_params = (struct dpbp_cmd_open *)cmd.params;
+ cmd_params->dpbp_id = cpu_to_le32(dpbp_id);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
@@ -62,11 +80,22 @@ int dpbp_open(struct fsl_mc_io *mc_io,
return err;
/* retrieve response parameters */
- *token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+ *token = mc_cmd_hdr_read_token(&cmd);
return err;
}
+/**
+ * dpbp_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 DPBP 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 dpbp_close(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
@@ -81,6 +110,24 @@ int dpbp_close(struct fsl_mc_io *mc_io,
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_create() - Create the DPBP object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg: Configuration structure
+ * @obj_id: Returned object id; use in subsequent API calls
+ *
+ * Create the DPBP object, allocate required resources and
+ * perform required initialization.
+ *
+ * This function accepts an authentication token of a parent
+ * container that this object should be assigned to and returns
+ * an object id. This object_id will be used in all subsequent calls to
+ * this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_create(struct fsl_mc_io *mc_io,
uint16_t dprc_token,
uint32_t cmd_flags,
@@ -94,8 +141,7 @@ int dpbp_create(struct fsl_mc_io *mc_io,
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
- cmd_flags,
- dprc_token);
+ cmd_flags, dprc_token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
@@ -103,28 +149,47 @@ int dpbp_create(struct fsl_mc_io *mc_io,
return err;
/* retrieve response parameters */
- CMD_CREATE_RSP_GET_OBJ_ID_PARAM0(cmd, *obj_id);
+ *obj_id = mc_cmd_read_object_id(&cmd);
return 0;
}
+/**
+ * dpbp_destroy() - Destroy the DPBP object and release all its resources.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @obj_id: ID of DPBP object
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
int dpbp_destroy(struct fsl_mc_io *mc_io,
uint16_t dprc_token,
- uint32_t cmd_flags,
- uint32_t object_id)
+ uint32_t cmd_flags,
+ uint32_t obj_id)
{
+ struct dpbp_cmd_destroy *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY,
- cmd_flags,
- dprc_token);
- /* set object id to destroy */
- CMD_DESTROY_SET_OBJ_ID_PARAM0(cmd, object_id);
+ cmd_flags, dprc_token);
+
+ cmd_params = (struct dpbp_cmd_destroy *)cmd.params;
+ cmd_params->object_id = cpu_to_le32(obj_id);
+
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_enable() - Enable the DPBP.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_enable(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
@@ -139,6 +204,14 @@ int dpbp_enable(struct fsl_mc_io *mc_io,
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_disable() - Disable the DPBP.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_disable(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
@@ -147,20 +220,30 @@ int dpbp_disable(struct fsl_mc_io *mc_io,
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
- cmd_flags,
- token);
+ cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_is_enabled() - Check if the DPBP is enabled.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_is_enabled(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
int *en)
{
+ struct dpbp_rsp_is_enabled *rsp_params;
struct mc_command cmd = { 0 };
int err;
+
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_IS_ENABLED, cmd_flags,
token);
@@ -171,11 +254,20 @@ int dpbp_is_enabled(struct fsl_mc_io *mc_io,
return err;
/* retrieve response parameters */
- DPBP_RSP_IS_ENABLED(cmd, *en);
+ rsp_params = (struct dpbp_rsp_is_enabled *)cmd.params;
+ *en = rsp_params->enabled & DPBP_ENABLE;
return 0;
}
+/**
+ * dpbp_reset() - Reset the DPBP, 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 DPBP object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_reset(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
@@ -184,8 +276,7 @@ int dpbp_reset(struct fsl_mc_io *mc_io,
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_RESET,
- cmd_flags,
- token);
+ cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
@@ -195,13 +286,13 @@ int dpbp_get_attributes(struct fsl_mc_io *mc_io,
uint16_t token,
struct dpbp_attr *attr)
{
+ struct dpbp_rsp_get_attributes *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_ATTR,
- cmd_flags,
- token);
+ cmd_flags, token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
@@ -209,38 +300,64 @@ int dpbp_get_attributes(struct fsl_mc_io *mc_io,
return err;
/* retrieve response parameters */
- DPBP_RSP_GET_ATTRIBUTES(cmd, attr);
+ rsp_params = (struct dpbp_rsp_get_attributes *)cmd.params;
+ attr->bpid = le16_to_cpu(rsp_params->bpid);
+ attr->id = le32_to_cpu(rsp_params->id);
return 0;
}
-
+/**
+ * dpbp_get_api_version - Get Data Path Buffer Pool API version
+ * @mc_io: Pointer to Mc portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of Buffer Pool API
+ * @minor_ver: Minor version of Buffer Pool API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_get_api_version(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
- uint16_t *major_ver,
- uint16_t *minor_ver)
+ uint16_t *major_ver,
+ uint16_t *minor_ver)
{
+ struct dpbp_rsp_get_api_version *rsp_params;
struct mc_command cmd = { 0 };
int err;
+ /* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_API_VERSION,
- cmd_flags,
- 0);
+ cmd_flags, 0);
+ /* send command to mc */
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
- DPBP_RSP_GET_API_VERSION(cmd, *major_ver, *minor_ver);
+ /* retrieve response parameters */
+ rsp_params = (struct dpbp_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
return 0;
}
-int dpbp_get_num_free_bufs(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
+/**
+ * dpbp_get_num_free_bufs() - Get number of free buffers in the buffer pool
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP object
+ * @num_free_bufs: Number of free buffers
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+
+int dpbp_get_num_free_bufs(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
uint32_t *num_free_bufs)
{
+ struct dpbp_rsp_get_num_free_bufs *rsp_params;
struct mc_command cmd = { 0 };
int err;
@@ -255,7 +372,8 @@ int dpbp_get_num_free_bufs(struct fsl_mc_io *mc_io,
return err;
/* retrieve response parameters */
- DPBP_RSP_GET_NUM_FREE_BUFS(cmd, *num_free_bufs);
+ rsp_params = (struct dpbp_rsp_get_num_free_bufs *)cmd.params;
+ *num_free_bufs = le32_to_cpu(rsp_params->num_free_bufs);
return 0;
}