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*
* 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.
*/
#include "../include/mc-sys.h"
#include "../include/mc-cmd.h"
#include "dpmcp.h"
#include "dpmcp-cmd.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;
}
/**
* 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);
}
/**
* dpmcp_create() - Create the DPMCP object.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @cfg: Configuration structure
* @token: Returned token; use in subsequent API calls
*
* Create the DPMCP object, allocate required resources and
* perform required initialization.
*
* The object can be created either by declaring it in the
* DPL file, or by calling this 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 calls to
* this specific object. For objects that are created using the
* DPL file, call dpmcp_open function to get an authentication
* token first.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_create(struct fsl_mc_io *mc_io,
u32 cmd_flags,
const struct dpmcp_cfg *cfg,
u16 *token)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_create *cmd_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CREATE,
cmd_flags, 0);
cmd_params = (struct dpmcp_cmd_create *)cmd.params;
cmd_params->portal_id = cpu_to_le32(cfg->portal_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 0;
}
/**
* dpmcp_destroy() - Destroy the DPMCP object and release all its resources.
* @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_destroy(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_DESTROY,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* 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);
}
/**
* dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt.
* @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
* @irq_index: Identifies the interrupt index to configure
* @irq_cfg: IRQ configuration
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_set_irq(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
struct dpmcp_irq_cfg *irq_cfg)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_set_irq *cmd_params;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_set_irq *)cmd.params;
cmd_params->irq_index = irq_index;
cmd_params->irq_val = cpu_to_le32(irq_cfg->val);
cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr);
cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpmcp_get_irq() - Get IRQ information from the DPMCP.
* @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
* @irq_index: The interrupt index to configure
* @type: Interrupt type: 0 represents message interrupt
* type (both irq_addr and irq_val are valid)
* @irq_cfg: IRQ attributes
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_get_irq(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
int *type,
struct dpmcp_irq_cfg *irq_cfg)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_get_irq *cmd_params;
struct dpmcp_rsp_get_irq *rsp_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_get_irq *)cmd.params;
cmd_params->irq_index = irq_index;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpmcp_rsp_get_irq *)cmd.params;
irq_cfg->val = le32_to_cpu(rsp_params->irq_val);
irq_cfg->paddr = le64_to_cpu(rsp_params->irq_paddr);
irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num);
*type = le32_to_cpu(rsp_params->type);
return 0;
}
/**
* dpmcp_set_irq_enable() - Set overall interrupt 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
* @irq_index: The interrupt index to configure
* @en: Interrupt state - enable = 1, disable = 0
*
* Allows GPP software to control when interrupts are generated.
* Each interrupt can have up to 32 causes. The enable/disable control's the
* overall interrupt state. if the interrupt is disabled no causes will cause
* an interrupt.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u8 en)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_set_irq_enable *cmd_params;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_ENABLE,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_set_irq_enable *)cmd.params;
cmd_params->enable = en & DPMCP_ENABLE;
cmd_params->irq_index = irq_index;
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpmcp_get_irq_enable() - Get overall interrupt 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
* @irq_index: The interrupt index to configure
* @en: Returned interrupt state - enable = 1, disable = 0
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u8 *en)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_get_irq_enable *cmd_params;
struct dpmcp_rsp_get_irq_enable *rsp_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_ENABLE,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_get_irq_enable *)cmd.params;
cmd_params->irq_index = irq_index;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpmcp_rsp_get_irq_enable *)cmd.params;
*en = rsp_params->enabled & DPMCP_ENABLE;
return 0;
}
/**
* dpmcp_set_irq_mask() - Set interrupt mask.
* @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
* @irq_index: The interrupt index to configure
* @mask: Event mask to trigger interrupt;
* each bit:
* 0 = ignore event
* 1 = consider event for asserting IRQ
*
* Every interrupt can have up to 32 causes and the interrupt model supports
* masking/unmasking each cause independently
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 mask)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_set_irq_mask *cmd_params;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_MASK,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_set_irq_mask *)cmd.params;
cmd_params->mask = cpu_to_le32(mask);
cmd_params->irq_index = irq_index;
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpmcp_get_irq_mask() - Get interrupt mask.
* @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
* @irq_index: The interrupt index to configure
* @mask: Returned event mask to trigger interrupt
*
* Every interrupt can have up to 32 causes and the interrupt model supports
* masking/unmasking each cause independently
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 *mask)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_get_irq_mask *cmd_params;
struct dpmcp_rsp_get_irq_mask *rsp_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_MASK,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_get_irq_mask *)cmd.params;
cmd_params->irq_index = irq_index;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpmcp_rsp_get_irq_mask *)cmd.params;
*mask = le32_to_cpu(rsp_params->mask);
return 0;
}
/**
* dpmcp_get_irq_status() - Get the current status of any pending interrupts.
*
* @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
* @irq_index: The interrupt index to configure
* @status: Returned interrupts status - one bit per cause:
* 0 = no interrupt pending
* 1 = interrupt pending
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_get_irq_status(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 *status)
{
struct mc_command cmd = { 0 };
struct dpmcp_cmd_get_irq_status *cmd_params;
struct dpmcp_rsp_get_irq_status *rsp_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_STATUS,
cmd_flags, token);
cmd_params = (struct dpmcp_cmd_get_irq_status *)cmd.params;
cmd_params->status = cpu_to_le32(*status);
cmd_params->irq_index = irq_index;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpmcp_rsp_get_irq_status *)cmd.params;
*status = le32_to_cpu(rsp_params->status);
return 0;
}
/**
* dpmcp_get_attributes - Retrieve DPMCP attributes.
*
* @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
* @attr: Returned object's attributes
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmcp_get_attributes(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dpmcp_attr *attr)
{
struct mc_command cmd = { 0 };
struct dpmcp_rsp_get_attributes *rsp_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_ATTR,
cmd_flags, token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpmcp_rsp_get_attributes *)cmd.params;
attr->id = le32_to_cpu(rsp_params->id);
attr->version.major = le16_to_cpu(rsp_params->version_major);
attr->version.minor = le16_to_cpu(rsp_params->version_minor);
return 0;
}
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