diff options
Diffstat (limited to 'drivers/staging/fsl-mc/bus/dpio/dpio.c')
| -rw-r--r-- | drivers/staging/fsl-mc/bus/dpio/dpio.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio.c b/drivers/staging/fsl-mc/bus/dpio/dpio.c deleted file mode 100644 index ff37c80e11a0..000000000000 --- a/drivers/staging/fsl-mc/bus/dpio/dpio.c +++ /dev/null @@ -1,198 +0,0 @@ -// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * Copyright 2016 NXP - * - */ -#include <linux/kernel.h> -#include <linux/fsl/mc.h> - -#include "dpio.h" -#include "dpio-cmd.h" - -/* - * Data Path I/O Portal API - * Contains initialization APIs and runtime control APIs for DPIO - */ - -/** - * dpio_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_' - * @dpio_id: DPIO 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 dpio_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 dpio_open(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int dpio_id, - u16 *token) -{ - struct fsl_mc_command cmd = { 0 }; - struct dpio_cmd_open *dpio_cmd; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN, - cmd_flags, - 0); - dpio_cmd = (struct dpio_cmd_open *)cmd.params; - dpio_cmd->dpio_id = cpu_to_le32(dpio_id); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - *token = mc_cmd_hdr_read_token(&cmd); - - return 0; -} - -/** - * dpio_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 DPIO object - * - * Return: '0' on Success; Error code otherwise. - */ -int dpio_close(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE, - cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dpio_enable() - Enable the DPIO, allow I/O portal operations. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPIO object - * - * Return: '0' on Success; Error code otherwise - */ -int dpio_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE, - cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dpio_disable() - Disable the DPIO, stop any I/O portal operation. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPIO object - * - * Return: '0' on Success; Error code otherwise - */ -int dpio_disable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE, - cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dpio_get_attributes() - Retrieve DPIO 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 DPIO object - * @attr: Returned object's attributes - * - * Return: '0' on Success; Error code otherwise - */ -int dpio_get_attributes(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpio_attr *attr) -{ - struct fsl_mc_command cmd = { 0 }; - struct dpio_rsp_get_attr *dpio_rsp; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_ATTR, - cmd_flags, - token); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - dpio_rsp = (struct dpio_rsp_get_attr *)cmd.params; - attr->id = le32_to_cpu(dpio_rsp->id); - attr->qbman_portal_id = le16_to_cpu(dpio_rsp->qbman_portal_id); - attr->num_priorities = dpio_rsp->num_priorities; - attr->channel_mode = dpio_rsp->channel_mode & DPIO_CHANNEL_MODE_MASK; - attr->qbman_portal_ce_offset = - le64_to_cpu(dpio_rsp->qbman_portal_ce_addr); - attr->qbman_portal_ci_offset = - le64_to_cpu(dpio_rsp->qbman_portal_ci_addr); - attr->qbman_version = le32_to_cpu(dpio_rsp->qbman_version); - - return 0; -} - -/** - * dpio_get_api_version - Get Data Path I/O API version - * @mc_io: Pointer to MC portal's DPIO object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @major_ver: Major version of DPIO API - * @minor_ver: Minor version of DPIO API - * - * Return: '0' on Success; Error code otherwise - */ -int dpio_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver) -{ - struct fsl_mc_command cmd = { 0 }; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION, - cmd_flags, 0); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - mc_cmd_read_api_version(&cmd, major_ver, minor_ver); - - return 0; -} |