| /* Copyright 2013-2016 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. |
| */ |
| #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; |
| } |