diff options
Diffstat (limited to 'drivers/staging/fsl-dpaa2/rtc/dprtc.c')
| -rw-r--r-- | drivers/staging/fsl-dpaa2/rtc/dprtc.c | 701 |
1 files changed, 0 insertions, 701 deletions
diff --git a/drivers/staging/fsl-dpaa2/rtc/dprtc.c b/drivers/staging/fsl-dpaa2/rtc/dprtc.c deleted file mode 100644 index 68ae6ffefbf5..000000000000 --- a/drivers/staging/fsl-dpaa2/rtc/dprtc.c +++ /dev/null @@ -1,701 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * Copyright 2016-2018 NXP - */ - -#include <linux/fsl/mc.h> - -#include "dprtc.h" -#include "dprtc-cmd.h" - -/** - * dprtc_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_' - * @dprtc_id: DPRTC 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 dprtc_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 dprtc_open(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int dprtc_id, - u16 *token) -{ - struct dprtc_cmd_open *cmd_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_OPEN, - cmd_flags, - 0); - cmd_params = (struct dprtc_cmd_open *)cmd.params; - cmd_params->dprtc_id = cpu_to_le32(dprtc_id); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - *token = mc_cmd_hdr_read_token(&cmd); - - return 0; -} - -/** - * dprtc_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 DPRTC 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 dprtc_close(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CLOSE, cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_create() - Create the DPRTC 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 - * - * Create the DPRTC object, allocate required resources and - * perform required initialization. - * - * The function accepts an authentication token of a parent - * container that this object should be assigned to. The token - * can be '0' so the object will be assigned to the default container. - * The newly created object can be opened with the returned - * object id and using the container's associated tokens and MC portals. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_create(struct fsl_mc_io *mc_io, - u16 dprc_token, - u32 cmd_flags, - const struct dprtc_cfg *cfg, - u32 *obj_id) -{ - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CREATE, - cmd_flags, - dprc_token); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - *obj_id = mc_cmd_read_object_id(&cmd); - - return 0; -} - -/** - * dprtc_destroy() - Destroy the DPRTC 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_' - * @object_id: The object id; it must be a valid id within the container that - * created this object; - * - * The function accepts the authentication token of the parent container that - * created the object (not the one that currently owns the object). The object - * is searched within parent using the provided 'object_id'. - * All tokens to the object must be closed before calling destroy. - * - * Return: '0' on Success; error code otherwise. - */ -int dprtc_destroy(struct fsl_mc_io *mc_io, - u16 dprc_token, - u32 cmd_flags, - u32 object_id) -{ - struct dprtc_cmd_destroy *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_DESTROY, - cmd_flags, - dprc_token); - cmd_params = (struct dprtc_cmd_destroy *)cmd.params; - cmd_params->object_id = cpu_to_le32(object_id); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_enable() - Enable the DPRTC. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_ENABLE, cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_disable() - Disable the DPRTC. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_disable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_DISABLE, - cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_is_enabled() - Check if the DPRTC 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 DPRTC object - * @en: Returns '1' if object is enabled; '0' otherwise - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_is_enabled(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *en) -{ - struct dprtc_rsp_is_enabled *rsp_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_IS_ENABLED, cmd_flags, - token); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_rsp_is_enabled *)cmd.params; - *en = dprtc_get_field(rsp_params->en, ENABLE); - - return 0; -} - -/** - * dprtc_reset() - Reset the DPRTC, 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 DPRTC object - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_reset(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_RESET, - cmd_flags, - token); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_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 DPRTC 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 dprtc_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en) -{ - struct dprtc_cmd_set_irq_enable *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_IRQ_ENABLE, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_set_irq_enable *)cmd.params; - cmd_params->irq_index = irq_index; - cmd_params->en = en; - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_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 DPRTC object - * @irq_index: The interrupt index to configure - * @en: Returned interrupt state - enable = 1, disable = 0 - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en) -{ - struct dprtc_rsp_get_irq_enable *rsp_params; - struct dprtc_cmd_get_irq *cmd_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_ENABLE, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_get_irq *)cmd.params; - cmd_params->irq_index = irq_index; - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_rsp_get_irq_enable *)cmd.params; - *en = rsp_params->en; - - return 0; -} - -/** - * dprtc_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 DPRTC 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 dprtc_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask) -{ - struct dprtc_cmd_set_irq_mask *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_IRQ_MASK, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_set_irq_mask *)cmd.params; - cmd_params->mask = cpu_to_le32(mask); - cmd_params->irq_index = irq_index; - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_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 DPRTC 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 dprtc_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask) -{ - struct dprtc_rsp_get_irq_mask *rsp_params; - struct dprtc_cmd_get_irq *cmd_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_MASK, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_get_irq *)cmd.params; - cmd_params->irq_index = irq_index; - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_rsp_get_irq_mask *)cmd.params; - *mask = le32_to_cpu(rsp_params->mask); - - return 0; -} - -/** - * dprtc_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 DPRTC 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 dprtc_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status) -{ - struct dprtc_cmd_get_irq_status *cmd_params; - struct dprtc_rsp_get_irq_status *rsp_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_STATUS, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_get_irq_status *)cmd.params; - cmd_params->status = cpu_to_le32(*status); - cmd_params->irq_index = irq_index; - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_rsp_get_irq_status *)cmd.params; - *status = le32_to_cpu(rsp_params->status); - - return 0; -} - -/** - * dprtc_clear_irq_status() - Clear a pending interrupt's status - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC 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 dprtc_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status) -{ - struct dprtc_cmd_clear_irq_status *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CLEAR_IRQ_STATUS, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_clear_irq_status *)cmd.params; - cmd_params->irq_index = irq_index; - cmd_params->status = cpu_to_le32(status); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_get_attributes - Retrieve DPRTC 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 DPRTC object - * @attr: Returned object's attributes - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_get_attributes(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dprtc_attr *attr) -{ - struct dprtc_rsp_get_attributes *rsp_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_ATTR, - cmd_flags, - token); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_rsp_get_attributes *)cmd.params; - attr->id = le32_to_cpu(rsp_params->id); - - return 0; -} - -/** - * dprtc_set_clock_offset() - Sets the clock's offset - * (usually relative to another clock). - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * @offset: New clock offset (in nanoseconds). - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_set_clock_offset(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int64_t offset) -{ - struct dprtc_cmd_set_clock_offset *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_CLOCK_OFFSET, - cmd_flags, - token); - cmd_params = (struct dprtc_cmd_set_clock_offset *)cmd.params; - cmd_params->offset = cpu_to_le64(offset); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_set_freq_compensation() - Sets a new frequency compensation value. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * @freq_compensation: The new frequency compensation value to set. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_set_freq_compensation(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u32 freq_compensation) -{ - struct dprtc_get_freq_compensation *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_FREQ_COMPENSATION, - cmd_flags, - token); - cmd_params = (struct dprtc_get_freq_compensation *)cmd.params; - cmd_params->freq_compensation = cpu_to_le32(freq_compensation); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_get_freq_compensation() - Retrieves the frequency compensation value - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * @freq_compensation: Frequency compensation value - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_get_freq_compensation(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u32 *freq_compensation) -{ - struct dprtc_get_freq_compensation *rsp_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_FREQ_COMPENSATION, - cmd_flags, - token); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_get_freq_compensation *)cmd.params; - *freq_compensation = le32_to_cpu(rsp_params->freq_compensation); - - return 0; -} - -/** - * dprtc_get_time() - Returns the current RTC time. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * @time: Current RTC time. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_get_time(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - uint64_t *time) -{ - struct dprtc_time *rsp_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_TIME, - cmd_flags, - token); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_time *)cmd.params; - *time = le64_to_cpu(rsp_params->time); - - return 0; -} - -/** - * dprtc_set_time() - Updates current RTC time. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * @time: New RTC time. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_set_time(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - uint64_t time) -{ - struct dprtc_time *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_TIME, - cmd_flags, - token); - cmd_params = (struct dprtc_time *)cmd.params; - cmd_params->time = cpu_to_le64(time); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_set_alarm() - Defines and sets alarm. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRTC object - * @time: In nanoseconds, the time when the alarm - * should go off - must be a multiple of - * 1 microsecond - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_set_alarm(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, uint64_t time) -{ - struct dprtc_time *cmd_params; - struct fsl_mc_command cmd = { 0 }; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_ALARM, - cmd_flags, - token); - cmd_params = (struct dprtc_time *)cmd.params; - cmd_params->time = cpu_to_le64(time); - - return mc_send_command(mc_io, &cmd); -} - -/** - * dprtc_get_api_version() - Get Data Path Real Time Counter 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 data path real time counter API - * @minor_ver: Minor version of data path real time counter API - * - * Return: '0' on Success; Error code otherwise. - */ -int dprtc_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver) -{ - struct dprtc_rsp_get_api_version *rsp_params; - struct fsl_mc_command cmd = { 0 }; - int err; - - cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_API_VERSION, - cmd_flags, - 0); - - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - rsp_params = (struct dprtc_rsp_get_api_version *)cmd.params; - *major_ver = le16_to_cpu(rsp_params->major); - *minor_ver = le16_to_cpu(rsp_params->minor); - - return 0; -} |