| /* Copyright 2013-2015 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_DPMCP_H |
| #define __FSL_DPMCP_H |
| |
| /* Data Path Management Command Portal API |
| * Contains initialization APIs and runtime control APIs for DPMCP |
| */ |
| |
| struct fsl_mc_io; |
| |
| /** |
| * dpmcp_open() - Open a control session for the specified object. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, int dpmcp_id, uint16_t *token); |
| |
| /* Get portal ID from pool */ |
| #define DPMCP_GET_PORTAL_ID_FROM_POOL (-1) |
| |
| /** |
| * dpmcp_close() - Close the control session of the object |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, uint16_t token); |
| |
| /** |
| * struct dpmcp_cfg() - Structure representing DPMCP configuration |
| * @portal_id: Portal ID; 'DPMCP_GET_PORTAL_ID_FROM_POOL' to get the portal ID |
| * from pool |
| */ |
| struct dpmcp_cfg { |
| int portal_id; |
| }; |
| |
| /** |
| * dpmcp_create() - Create the DPMCP object. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| const struct dpmcp_cfg *cfg, |
| uint16_t *token); |
| |
| /** |
| * dpmcp_destroy() - Destroy the DPMCP object and release all its resources. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @token: Token of DPMCP object |
| * |
| * Return: '0' on Success; error code otherwise. |
| */ |
| int dpmcp_destroy(struct fsl_mc_io *mc_io, uint16_t token); |
| |
| /** |
| * dpmcp_reset() - Reset the DPMCP, returns the object to initial state. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @token: Token of DPMCP object |
| * |
| * Return: '0' on Success; Error code otherwise. |
| */ |
| int dpmcp_reset(struct fsl_mc_io *mc_io, uint16_t token); |
| |
| /* IRQ */ |
| /*! |
| * @name dpmcp IRQ Index and Events |
| */ |
| #define DPMCP_IRQ_INDEX 0 |
| /*!< Irq index */ |
| #define DPMCP_IRQ_EVENT_CMD_DONE 0x00000001 |
| /*!< irq event - Indicates that the link state changed */ |
| /* @} */ |
| |
| /** |
| * dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @token: Token of DPMCP object |
| * @irq_index: Identifies the interrupt index to configure |
| * @irq_addr: Address that must be written to |
| * signal a message-based interrupt |
| * @irq_val: Value to write into irq_addr address |
| * @user_irq_id: A user defined number associated with this IRQ |
| * |
| * Return: '0' on Success; Error code otherwise. |
| */ |
| int dpmcp_set_irq(struct fsl_mc_io *mc_io, |
| uint16_t token, |
| uint8_t irq_index, |
| uint64_t irq_addr, |
| uint32_t irq_val, |
| int user_irq_id); |
| |
| /** |
| * dpmcp_get_irq() - Get IRQ information from the DPMCP. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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_addr: Returned address that must be written to |
| * signal the message-based interrupt |
| * @irq_val: Value to write into irq_addr address |
| * @user_irq_id: A user defined number associated with this IRQ |
| * |
| * Return: '0' on Success; Error code otherwise. |
| */ |
| int dpmcp_get_irq(struct fsl_mc_io *mc_io, |
| uint16_t token, |
| uint8_t irq_index, |
| int *type, |
| uint64_t *irq_addr, |
| uint32_t *irq_val, |
| int *user_irq_id); |
| |
| /** |
| * dpmcp_set_irq_enable() - Set overall interrupt state. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| uint16_t token, |
| uint8_t irq_index, |
| uint8_t en); |
| |
| /** |
| * dpmcp_get_irq_enable() - Get overall interrupt state |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| uint16_t token, |
| uint8_t irq_index, |
| uint8_t *en); |
| |
| /** |
| * dpmcp_set_irq_mask() - Set interrupt mask. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| uint16_t token, |
| uint8_t irq_index, |
| uint32_t mask); |
| |
| /** |
| * dpmcp_get_irq_mask() - Get interrupt mask. |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| uint16_t token, |
| uint8_t irq_index, |
| uint32_t *mask); |
| |
| /** |
| * dpmcp_get_irq_status() - Get the current status of any pending interrupts. |
| * |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| uint16_t token, |
| uint8_t irq_index, |
| uint32_t *status); |
| |
| /** |
| * dpmcp_clear_irq_status() - Clear a pending interrupt's status |
| * |
| * @mc_io: Pointer to MC portal's I/O object |
| * @token: Token of DPMCP object |
| * @irq_index: The interrupt index to configure |
| * @status: Bits to clear (W1C) - one bit per cause: |
| * 0 = don't change |
| * 1 = clear status bit |
| * |
| * Return: '0' on Success; Error code otherwise. |
| */ |
| int dpmcp_clear_irq_status(struct fsl_mc_io *mc_io, |
| uint16_t token, |
| uint8_t irq_index, |
| uint32_t status); |
| |
| /** |
| * struct dpmcp_attr - Structure representing DPMCP attributes |
| * @id: DPMCP object ID |
| * @version: DPMCP version |
| */ |
| struct dpmcp_attr { |
| int id; |
| /** |
| * struct version - Structure representing DPMCP version |
| * @major: DPMCP major version |
| * @minor: DPMCP minor version |
| */ |
| struct { |
| uint16_t major; |
| uint16_t minor; |
| } version; |
| }; |
| |
| /** |
| * dpmcp_get_attributes - Retrieve DPMCP attributes. |
| * |
| * @mc_io: Pointer to MC portal's I/O object |
| * @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, |
| uint16_t token, |
| struct dpmcp_attr *attr); |
| |
| #endif /* __FSL_DPMCP_H */ |