spi: implement processing

Implement processing with writing to provided buffer or in-place
Fix types.
Add more PortInfo flags
Remove release-id, we now use a callback, which is more practical and
still allows deallocation out of the rt-threads if needed as well as
recycling the buffers into an atomic pool
Add more comments
Allow NULL in set_params to reset params
This commit is contained in:
Wim Taymans 2016-06-02 16:40:20 +02:00
parent b44d2d86b6
commit 03046301bf
5 changed files with 333 additions and 109 deletions

View file

@ -36,11 +36,20 @@ typedef struct _SpiEvent SpiEvent;
* @SPI_PORT_INFO_FLAG_NONE: no flags
* @SPI_PORT_INFO_FLAG_REMOVABLE: port can be removed
* @SPI_PORT_INFO_FLAG_OPTIONAL: processing on port is optional
* @SPI_PORT_INFO_FLAG_CAN_GIVE_BUFFER: the port can give a buffer
* @SPI_PORT_INFO_FLAG_CAN_USE_BUFFER: the port can use a provided buffer
* @SPI_PORT_INFO_FLAG_IN_PLACE: the port can process data in-place and will need
* a writable input buffer when no output buffer is specified.
* @SPI_PORT_INFO_FLAG_NO_REF: the port does not keep a ref on the buffer
*/
typedef enum {
SPI_PORT_INFO_FLAG_NONE = 0,
SPI_PORT_INFO_FLAG_REMOVABLE = 1 << 0,
SPI_PORT_INFO_FLAG_OPTIONAL = 1 << 1,
SPI_PORT_INFO_FLAG_CAN_GIVE_BUFFER = 1 << 2,
SPI_PORT_INFO_FLAG_CAN_USE_BUFFER = 1 << 3,
SPI_PORT_INFO_FLAG_IN_PLACE = 1 << 4,
SPI_PORT_INFO_FLAG_NO_REF = 1 << 5,
} SpiPortInfoFlags;
/**
@ -50,16 +59,16 @@ typedef enum {
* @align: required alignment of the data
* @maxbuffering: the maximum amount of bytes that the element will keep
* around internally
* @latency: latency on this port
* @latency: latency on this port in nanoseconds
* @features: NULL terminated array of extra port features
*
*/
typedef struct {
SpiPortInfoFlags flags;
int minsize;
int align;
int maxbuffering;
int latency;
size_t minsize;
uint32_t align;
unsigned int maxbuffering;
uint64_t latency;
const char **features;
} SpiPortInfo;
@ -67,12 +76,12 @@ typedef struct {
* SpiPortStatusFlags:
* @SPI_PORT_STATUS_FLAG_NONE: no status flags
* @SPI_PORT_STATUS_FLAG_HAVE_OUTPUT: port has output
* @SPI_PORT_STATUS_FLAG_ACCEPT_INPUT: port accepts input
* @SPI_PORT_STATUS_FLAG_NEED_INPUT: port needs input
*/
typedef enum {
SPI_PORT_STATUS_FLAG_NONE = 0,
SPI_PORT_STATUS_FLAG_HAVE_OUTPUT = 1 << 0,
SPI_PORT_STATUS_FLAG_ACCEPT_INPUT = 1 << 1,
SPI_PORT_STATUS_FLAG_NEED_INPUT = 1 << 1,
} SpiPortStatusFlags;
typedef struct {
@ -86,31 +95,36 @@ typedef enum {
SPI_EVENT_TYPE_HAVE_OUTPUT,
SPI_EVENT_TYPE_NEED_INPUT,
SPI_EVENT_TYPE_REQUEST_DATA,
SPI_EVENT_TYPE_RELEASE_ID,
SPI_EVENT_TYPE_DRAINED,
SPI_EVENT_TYPE_MARKER,
SPI_EVENT_TYPE_ERROR,
} SpiEventType;
typedef struct {
int n_ids;
void **ids;
} SpiEventReleaseID;
struct _SpiEvent {
const void *id;
volatile int refcount;
SpiNotify notify;
SpiEventType type;
int port_id;
uint32_t port_id;
void *data;
size_t size;
};
/**
* SpiDataFlags:
* @SPI_DATA_FLAG_NONE: no flag
* @SPI_DATA_FLAG_DISCARD: the buffer can be discarded
* @SPI_DATA_FLAG_FORMAT_CHANGED: the format of this port changed
* @SPI_DATA_FLAG_PROPERTIES_CHANGED: properties of this port changed
* @SPI_DATA_FLAG_REMOVED: this port is removed
* @SPI_DATA_FLAG_NO_BUFFER: no buffer was produced
*/
typedef enum {
SPI_DATA_FLAG_NONE = 0,
SPI_DATA_FLAG_FORMAT_CHANGED = (1 << 0),
SPI_DATA_FLAG_PROPERTIES_CHANGED = (1 << 1),
SPI_DATA_FLAG_EOS = (1 << 2),
SPI_DATA_FLAG_NO_BUFFER = (1 << 3),
SPI_DATA_FLAG_DISCARD = (1 << 0),
SPI_DATA_FLAG_FORMAT_CHANGED = (1 << 1),
SPI_DATA_FLAG_PROPERTIES_CHANGED = (1 << 2),
SPI_DATA_FLAG_REMOVED = (1 << 3),
SPI_DATA_FLAG_NO_BUFFER = (1 << 4),
} SpiDataFlags;
/**
@ -121,7 +135,7 @@ typedef enum {
* @event: an event
*/
typedef struct {
int port_id;
uint32_t port_id;
SpiDataFlags flags;
SpiBuffer *buffer;
SpiEvent *event;
@ -139,8 +153,10 @@ typedef enum {
} SpiCommandType;
typedef struct {
int port_id;
volatile int refcount;
SpiNotify notify;
SpiCommandType type;
uint32_t port_id;
void *data;
size_t size;
} SpiCommand;
@ -156,19 +172,72 @@ typedef void (*SpiEventCallback) (SpiNode *node,
void *user_data);
/**
* SpiNodeInterface:
* SpiNode:
*
* Spi node interface.
* The main processing nodes.
*/
struct _SpiNode {
/* user_data that can be set by the application */
void * user_data;
int size;
/* the total size of this node. This can be used to expand this
* structure in the future */
size_t size;
/**
* SpiNode::get_params:
* @Node: a #SpiNode
* @props: a location for a #SpiParams pointer
*
* Get the configurable parameters of @node.
*
* The returned @props is a snapshot of the current configuration and
* can be modified. The modifications will take effect after a call
* to SpiNode::set_params.
*
* Returns: #SPI_RESULT_OK on success
* #SPI_RESULT_INVALID_ARGUMENTS when node or props are %NULL
* #SPI_RESULT_NOT_IMPLEMENTED when there are no properties
* implemented on @node
*/
SpiResult (*get_params) (SpiNode *node,
SpiParams **props);
/**
* SpiNode::set_params:
* @Node: a #SpiNode
* @props: a #SpiParams
*
* Set the configurable parameters in @node.
*
* Usually, @props will be obtained from SpiNode::get_params and then
* modified but it is also possible to set another #SpiParams object
* as long as its keys and types match those of SpiParams::get_params.
*
* Properties with keys that are not known are ignored.
*
* If @props is NULL, all the parameters are reset to their defaults.
*
* Returns: #SPI_RESULT_OK on success
* #SPI_RESULT_INVALID_ARGUMENTS when node is %NULL
* #SPI_RESULT_NOT_IMPLEMENTED when no properties can be
* modified on @node.
* #SPI_RESULT_WRONG_PARAM_TYPE when a property has the wrong
* type.
*/
SpiResult (*set_params) (SpiNode *node,
const SpiParams *props);
/**
* SpiNode::send_command:
* @Node: a #SpiNode
* @command: a #SpiCommand
*
* Send a command to @node.
*
* Returns: #SPI_RESULT_OK on success
* #SPI_RESULT_INVALID_ARGUMENTS when node or command is %NULL
* #SPI_RESULT_NOT_IMPLEMENTED when this node can't process commands
* #SPI_RESULT_INVALID_COMMAND @command is an invalid command
*/
SpiResult (*send_command) (SpiNode *node,
SpiCommand *command);
SpiResult (*get_event) (SpiNode *node,
@ -176,55 +245,82 @@ struct _SpiNode {
SpiResult (*set_event_callback) (SpiNode *node,
SpiEventCallback callback,
void *user_data);
/**
* SpiNode::get_n_ports:
* @Node: a #SpiNode
* @n_input_ports: location to hold the number of input ports or %NULL
* @max_input_ports: location to hold the maximum number of input ports or %NULL
* @n_output_ports: location to hold the number of output ports or %NULL
* @max_output_ports: location to hold the maximum number of output ports or %NULL
*
* Get the current number of input and output ports and also the maximum
* number of ports.
*
* Returns: #SPI_RESULT_OK on success
* #SPI_RESULT_INVALID_ARGUMENTS when node is %NULL
*/
SpiResult (*get_n_ports) (SpiNode *node,
int *n_input_ports,
int *max_input_ports,
int *n_output_ports,
int *max_output_ports);
unsigned int *n_input_ports,
unsigned int *max_input_ports,
unsigned int *n_output_ports,
unsigned int *max_output_ports);
/**
* SpiNode::get_port_ids:
* @Node: a #SpiNode
* @n_input_ports: size of the @input_ids array
* @input_ids: array to store the input stream ids
* @n_output_ports: size of the @output_ids array
* @output_ids: array to store the output stream ids
*
* Get the current number of input and output ports and also the maximum
* number of ports.
*
* Returns: #SPI_RESULT_OK on success
* #SPI_RESULT_INVALID_ARGUMENTS when node is %NULL
*/
SpiResult (*get_port_ids) (SpiNode *node,
int n_input_ports,
int *input_ids,
int n_output_ports,
int *output_ids);
unsigned int n_input_ports,
uint32_t *input_ids,
unsigned int n_output_ports,
uint32_t *output_ids);
SpiResult (*add_port) (SpiNode *node,
SpiDirection direction,
int *port_id);
uint32_t *port_id);
SpiResult (*remove_port) (SpiNode *node,
int port_id);
uint32_t port_id);
SpiResult (*get_port_formats) (SpiNode *node,
int port_id,
int format_idx,
uint32_t port_id,
unsigned int format_idx,
SpiParams **format);
SpiResult (*set_port_format) (SpiNode *node,
int port_id,
uint32_t port_id,
int test_only,
const SpiParams *format);
SpiResult (*get_port_format) (SpiNode *node,
int port_id,
uint32_t port_id,
const SpiParams **format);
SpiResult (*get_port_info) (SpiNode *node,
int port_id,
uint32_t port_id,
SpiPortInfo *info);
SpiResult (*get_port_params) (SpiNode *node,
int port_id,
uint32_t port_id,
SpiParams **params);
SpiResult (*set_port_params) (SpiNode *node,
int port_id,
uint32_t port_id,
const SpiParams *params);
SpiResult (*get_port_status) (SpiNode *node,
int port_id,
uint32_t port_id,
SpiPortStatus *status);
SpiResult (*send_port_data) (SpiNode *node,
SpiDataInfo *data);
SpiResult (*receive_port_data) (SpiNode *node,
int n_data,
unsigned int n_data,
SpiDataInfo *data);
};