#include "../include/dpbp.h"
#include "../include/dpbp-cmd.h"
-int dpbp_open(struct fsl_mc_io *mc_io, int dpbp_id, uint16_t *token)
+/**
+ * dpbp_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_'
+ * @dpbp_id: DPBP 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 dpbp_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 dpbp_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpbp_id,
+ u16 *token)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
- MC_CMD_PRI_LOW, 0);
+ cmd_flags, 0);
cmd.params[0] |= mc_enc(0, 32, dpbp_id);
/* send command to mc*/
}
EXPORT_SYMBOL(dpbp_open);
-int dpbp_close(struct fsl_mc_io *mc_io, uint16_t token)
+/**
+ * dpbp_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 DPBP 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 dpbp_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(DPBP_CMDID_CLOSE, MC_CMD_PRI_HIGH,
+ cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLOSE, cmd_flags,
token);
/* send command to mc*/
}
EXPORT_SYMBOL(dpbp_close);
+/**
+ * dpbp_create() - Create the DPBP 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 DPBP 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 dpbp_open function to get an authentication
+ * token first.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_create(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
const struct dpbp_cfg *cfg,
- uint16_t *token)
+ u16 *token)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
- MC_CMD_PRI_LOW, 0);
+ cmd_flags, 0);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
return 0;
}
-int dpbp_destroy(struct fsl_mc_io *mc_io, uint16_t token)
+/**
+ * dpbp_destroy() - Destroy the DPBP 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 DPBP object
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpbp_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(DPBP_CMDID_DESTROY,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
-int dpbp_enable(struct fsl_mc_io *mc_io, uint16_t token)
+/**
+ * dpbp_enable() - Enable the DPBP.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpbp_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, MC_CMD_PRI_LOW,
+ cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, cmd_flags,
token);
/* send command to mc*/
}
EXPORT_SYMBOL(dpbp_enable);
-int dpbp_disable(struct fsl_mc_io *mc_io, uint16_t token)
+/**
+ * dpbp_disable() - Disable the DPBP.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpbp_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL(dpbp_disable);
-int dpbp_is_enabled(struct fsl_mc_io *mc_io, uint16_t token, int *en)
+/**
+ * dpbp_is_enabled() - Check if the DPBP 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 DPBP object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpbp_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_IS_ENABLED, MC_CMD_PRI_LOW,
+ cmd.header = mc_encode_cmd_header(DPBP_CMDID_IS_ENABLED, cmd_flags,
token);
/* send command to mc*/
return 0;
}
-int dpbp_reset(struct fsl_mc_io *mc_io, uint16_t token)
+/**
+ * dpbp_reset() - Reset the DPBP, 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 DPBP object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpbp_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(DPBP_CMDID_RESET,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_set_irq() - Set IRQ information for the DPBP 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 DPBP object
+ * @irq_index: Identifies the interrupt index to configure
+ * @irq_cfg: IRQ configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_set_irq(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint64_t irq_paddr,
- uint32_t irq_val,
- int user_irq_id)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ struct dpbp_irq_cfg *irq_cfg)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(0, 8, irq_index);
- cmd.params[0] |= mc_enc(32, 32, irq_val);
- cmd.params[1] |= mc_enc(0, 64, irq_paddr);
- cmd.params[2] |= mc_enc(0, 32, user_irq_id);
+ cmd.params[0] |= mc_enc(32, 32, irq_cfg->val);
+ cmd.params[1] |= mc_enc(0, 64, irq_cfg->addr);
+ cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_get_irq() - Get IRQ information from the DPBP.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPBP 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 dpbp_get_irq(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
int *type,
- uint64_t *irq_paddr,
- uint32_t *irq_val,
- int *user_irq_id)
+ struct dpbp_irq_cfg *irq_cfg)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(32, 8, irq_index);
/* send command to mc*/
return err;
/* retrieve response parameters */
- *irq_val = (uint32_t)mc_dec(cmd.params[0], 0, 32);
- *irq_paddr = (uint64_t)mc_dec(cmd.params[1], 0, 64);
- *user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
+ irq_cfg->val = (u32)mc_dec(cmd.params[0], 0, 32);
+ irq_cfg->addr = (u64)mc_dec(cmd.params[1], 0, 64);
+ irq_cfg->user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
*type = (int)mc_dec(cmd.params[2], 32, 32);
return 0;
}
+/**
+ * dpbp_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 DPBP 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 dpbp_set_irq_enable(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint8_t en)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_ENABLE,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(0, 8, en);
cmd.params[0] |= mc_enc(32, 8, irq_index);
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_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 DPBP object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_get_irq_enable(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint8_t *en)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_ENABLE,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(32, 8, irq_index);
/* send command to mc*/
return err;
/* retrieve response parameters */
- *en = (uint8_t)mc_dec(cmd.params[0], 0, 8);
+ *en = (u8)mc_dec(cmd.params[0], 0, 8);
return 0;
}
+/**
+ * dpbp_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 DPBP 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 dpbp_set_irq_mask(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint32_t mask)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_MASK,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(0, 32, mask);
cmd.params[0] |= mc_enc(32, 8, irq_index);
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_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 DPBP 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 dpbp_get_irq_mask(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint32_t *mask)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_MASK,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(32, 8, irq_index);
/* send command to mc*/
return err;
/* retrieve response parameters */
- *mask = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+ *mask = (u32)mc_dec(cmd.params[0], 0, 32);
return 0;
}
+/**
+ * dpbp_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 DPBP 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 dpbp_get_irq_status(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint32_t *status)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(32, 8, irq_index);
/* send command to mc*/
return err;
/* retrieve response parameters */
- *status = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+ *status = (u32)mc_dec(cmd.params[0], 0, 32);
return 0;
}
+/**
+ * dpbp_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 DPBP 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 dpbp_clear_irq_status(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint8_t irq_index,
- uint32_t status)
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLEAR_IRQ_STATUS,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
cmd.params[0] |= mc_enc(0, 32, status);
cmd.params[0] |= mc_enc(32, 8, irq_index);
return mc_send_command(mc_io, &cmd);
}
+/**
+ * dpbp_get_attributes - Retrieve DPBP 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 DPBP object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
int dpbp_get_attributes(struct fsl_mc_io *mc_io,
- uint16_t token,
+ u32 cmd_flags,
+ u16 token,
struct dpbp_attr *attr)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_ATTR,
- MC_CMD_PRI_LOW, token);
+ cmd_flags, token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
return err;
/* retrieve response parameters */
- attr->bpid = (uint16_t)mc_dec(cmd.params[0], 16, 16);
+ attr->bpid = (u16)mc_dec(cmd.params[0], 16, 16);
attr->id = (int)mc_dec(cmd.params[0], 32, 32);
- attr->version.major = (uint16_t)mc_dec(cmd.params[1], 0, 16);
- attr->version.minor = (uint16_t)mc_dec(cmd.params[1], 16, 16);
+ attr->version.major = (u16)mc_dec(cmd.params[1], 0, 16);
+ attr->version.minor = (u16)mc_dec(cmd.params[1], 16, 16);
return 0;
}
EXPORT_SYMBOL(dpbp_get_attributes);
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