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File pisound-micro.c#

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  • #include "include/pisound-micro.h"
  • #include "include/pisound-micro/api_internal.h"
  • #include <ctype.h>
  • #include <stdio.h>
  • #include <stdlib.h>
  • #include <string.h>
  • #include <errno.h>
  • #include <unistd.h>
  • #include <sys/file.h>
  • #include <sys/ioctl.h>
  • #include <sys/types.h>
  • #include <sys/stat.h>
  • #include <linux/input.h>
  • #include <dirent.h>
  • #include <stdarg.h>
  • #include <time.h>
  • #include <threads.h>
  • #include <stdatomic.h>
  • #include "utils.h"

Classes#

Type Name
struct upisnd_ctx_t
struct upisnd_elements_list_node_t

Public Types#

Type Name
enum pisound-micro_8c_1adf764cbdea00d65edcd07bb9953ad2b7
enum upisnd_path_type_t
enum upisnd_element_attr_e

Public Static Attributes#

Type Name
const uint32_t UPISND_TIMEOUT_MS = 2000ul
const char *const UPISND_TEXT_SEPARATORS = " \n\t"
const char const UPISND_PIN_NAMES = /* multi line expression */
const char UPISND_SYSFS_DEFAULT_BASE_PATH = "/sys/pisound-micro"
const char UPISND_PATH_SETUP_FMT = "%s/setup"
const char UPISND_PATH_UNSETUP_FMT = "%s/unsetup"
const char UPISND_ELEMENT_PATH_ATTR_FMT = "%s/elements/%s/%s"
struct upisnd_ctx_t * upisnd_active_ctx
struct upisnd_ctx_t * upisnd_ctx_list

Public Functions#

Type Name
UPISND_DEFINE_STR_TO_ENUM (pin_pull, UPISND_PIN_PULL_COUNT)
UPISND_DEFINE_STR_TO_ENUM (activity, UPISND_ACTIVITY_COUNT)
UPISND_DEFINE_STR_TO_ENUM (element_type, UPISND_ELEMENT_TYPE_COUNT)
UPISND_DEFINE_STR_TO_ENUM (pin_direction, UPISND_PIN_DIR_COUNT)
UPISND_DEFINE_STR_TO_ENUM (value_mode, UPISND_VALUE_MODE_COUNT)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (0, 3, upisnd_element_type_e, element_type)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (3, 8, upisnd_pin_t, pin_id)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (11, 2, upisnd_pin_pull_e, gpio_pull)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (13, 1, upisnd_pin_direction_e, gpio_dir)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (12, 1, bool, gpio_output)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (13, 8, upisnd_pin_t, encoder_pin_b_id)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (21, 2, upisnd_pin_pull_e, encoder_pin_b_pull)
UPISND_DEFINE_INTERNAL_SETUP_FIELD (11, 2, upisnd_activity_e, activity_type)

Public Static Functions#

Type Name
struct upisnd_ctx_t * upisnd_ctx_alloc (const char * sysfs_base)
void upisnd_ctx_free (struct upisnd_ctx_t * ctx)
void upisnd_contexts_prepend (struct upisnd_ctx_t * ctx)
int upisnd_contexts_remove (struct upisnd_ctx_t * ctx)
struct upisnd_elements_list_node_t * upisnd_element_alloc (const char * name, struct upisnd_ctx_t * ctx)
void upisnd_elements_free (upisnd_element_ref_t el)
void upisnd_elements_prepend (struct upisnd_elements_list_node_t * node)
int upisnd_elements_remove (upisnd_element_ref_t el)
uint32_t upisnd_get_ms (void)
struct upisnd_ctx_t * upisnd_set_active_ctx (struct upisnd_ctx_t * ctx)
struct upisnd_ctx_t * upisnd_init_internal (const char * sysfs_base)
int upisnd_path (char * path, upisnd_path_type_t type, const char * sysfs_base)
int upisnd_open_fd (upisnd_path_type_t type, int flags, const char * sysfs_base)
int upisnd_element_path (char * path, const char * sysfs_base, const char * name, upisnd_element_attr_e attr)
int upisnd_element_attr_open (upisnd_element_attr_e attr, int flags, upisnd_element_ref_t el)
int upisnd_element_attr_read_int (upisnd_element_attr_e attr, upisnd_element_ref_t el)
int upisnd_element_attr_write_int (upisnd_element_attr_e attr, upisnd_element_ref_t el, int i)
int upisnd_element_attr_read_str (char * dst, size_t n, upisnd_element_attr_e attr, upisnd_element_ref_t el)
int upisnd_element_attr_write_str (upisnd_element_attr_e attr, upisnd_element_ref_t el, const char * str)
int upisnd_unsetup_do (const char * sysfs_base, const char * name)
bool upisnd_element_exists_in_sysfs (const char * sysfs_base, const char * name)
upisnd_element_ref_t upisnd_setup_do (struct upisnd_ctx_t * ctx, const char * name, const char * request_fmt, ...)
upisnd_pin_pull_e upisnd_element_get_pull (upisnd_element_ref_t el, upisnd_element_attr_e attr)
int upisnd_unsetup_all_elements (struct upisnd_ctx_t * ctx)

Macros#

Type Name
define UPISND_DEFINE_STR_TO_ENUM (middle_part, count) /* multi line expression */
define UPISND_DEFINE_INTERNAL_SETUP_FIELD (shift, bits, type, name) /* multi line expression */
define UPISND_DO_WITH_ERR_CHECK (x) if ((err = (x)) &lt; 0) { return err; }

pisound-micro_8c_1adf764cbdea00d65edcd07bb9953ad2b7#

enum pisound-micro_8c_1adf764cbdea00d65edcd07bb9953ad2b7 {
    UPISND_MAX_BASE_PATH_LENGTH = 64,
    UPISND_ELEMENT_MAX_PATH_LENGTH = UPISND_MAX_ELEMENT_NAME_LENGTH + UPISND_MAX_BASE_PATH_LENGTH,
    UPISND_MAX_REQUEST_LENGTH = UPISND_MAX_ELEMENT_NAME_LENGTH + 64
};

upisnd_path_type_t#

enum upisnd_path_type_t {
    UPISND_PATH_SETUP,
    UPISND_PATH_UNSETUP
};

upisnd_element_attr_e#

enum upisnd_element_attr_e {
    UPISND_ELEMENT_ATTR_ROOT,
    UPISND_ELEMENT_ATTR_TYPE,
    UPISND_ELEMENT_ATTR_DIRECTION,
    UPISND_ELEMENT_ATTR_PIN,
    UPISND_ELEMENT_ATTR_PIN_NAME,
    UPISND_ELEMENT_ATTR_PIN_PULL,
    UPISND_ELEMENT_ATTR_PIN_B,
    UPISND_ELEMENT_ATTR_PIN_B_NAME,
    UPISND_ELEMENT_ATTR_PIN_B_PULL,
    UPISND_ELEMENT_ATTR_GPIO_EXPORT,
    UPISND_ELEMENT_ATTR_GPIO_UNEXPORT,
    UPISND_ELEMENT_ATTR_INPUT_MIN,
    UPISND_ELEMENT_ATTR_INPUT_MAX,
    UPISND_ELEMENT_ATTR_VALUE_LOW,
    UPISND_ELEMENT_ATTR_VALUE_HIGH,
    UPISND_ELEMENT_ATTR_VALUE_MODE,
    UPISND_ELEMENT_ATTR_VALUE,
    UPISND_ELEMENT_ATTR_ACTIVITY_TYPE
};

UPISND_TIMEOUT_MS#

const uint32_t UPISND_TIMEOUT_MS;

UPISND_TEXT_SEPARATORS#

const char* const UPISND_TEXT_SEPARATORS;

UPISND_PIN_NAMES#

const char const UPISND_PIN_NAMES[UPISND_PIN_COUNT][4];

UPISND_SYSFS_DEFAULT_BASE_PATH#

const char UPISND_SYSFS_DEFAULT_BASE_PATH[];

UPISND_PATH_SETUP_FMT#

const char UPISND_PATH_SETUP_FMT[];

UPISND_PATH_UNSETUP_FMT#

const char UPISND_PATH_UNSETUP_FMT[];

UPISND_ELEMENT_PATH_ATTR_FMT#

const char UPISND_ELEMENT_PATH_ATTR_FMT[];

upisnd_active_ctx#

struct upisnd_ctx_t* upisnd_active_ctx;

upisnd_ctx_list#

struct upisnd_ctx_t* upisnd_ctx_list;

UPISND_DEFINE_STR_TO_ENUM#

UPISND_DEFINE_STR_TO_ENUM (
    pin_pull,
    UPISND_PIN_PULL_COUNT
)

UPISND_DEFINE_STR_TO_ENUM#

UPISND_DEFINE_STR_TO_ENUM (
    activity,
    UPISND_ACTIVITY_COUNT
)

UPISND_DEFINE_STR_TO_ENUM#

UPISND_DEFINE_STR_TO_ENUM (
    element_type,
    UPISND_ELEMENT_TYPE_COUNT
)

UPISND_DEFINE_STR_TO_ENUM#

UPISND_DEFINE_STR_TO_ENUM (
    pin_direction,
    UPISND_PIN_DIR_COUNT
)

UPISND_DEFINE_STR_TO_ENUM#

UPISND_DEFINE_STR_TO_ENUM (
    value_mode,
    UPISND_VALUE_MODE_COUNT
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    0,
    3,
    upisnd_element_type_e,
    element_type
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    3,
    8,
    upisnd_pin_t,
    pin_id
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    11,
    2,
    upisnd_pin_pull_e,
    gpio_pull
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    13,
    1,
    upisnd_pin_direction_e,
    gpio_dir
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    12,
    1,
    bool,
    gpio_output
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    13,
    8,
    upisnd_pin_t,
    encoder_pin_b_id
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    21,
    2,
    upisnd_pin_pull_e,
    encoder_pin_b_pull
)

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    11,
    2,
    upisnd_activity_e,
    activity_type
)

upisnd_ctx_alloc#

static struct upisnd_ctx_t * upisnd_ctx_alloc (
    const char * sysfs_base
)

upisnd_ctx_free#

static void upisnd_ctx_free (
    struct upisnd_ctx_t * ctx
)

upisnd_contexts_prepend#

static void upisnd_contexts_prepend (
    struct upisnd_ctx_t * ctx
)

upisnd_contexts_remove#

static int upisnd_contexts_remove (
    struct upisnd_ctx_t * ctx
)

upisnd_element_alloc#

static struct upisnd_elements_list_node_t * upisnd_element_alloc (
    const char * name,
    struct upisnd_ctx_t * ctx
)

upisnd_elements_free#

static void upisnd_elements_free (
    upisnd_element_ref_t el
)

upisnd_elements_prepend#

static void upisnd_elements_prepend (
    struct upisnd_elements_list_node_t * node
)

upisnd_elements_remove#

static int upisnd_elements_remove (
    upisnd_element_ref_t el
)

upisnd_get_ms#

static uint32_t upisnd_get_ms (
    void
)

upisnd_set_active_ctx#

static struct upisnd_ctx_t * upisnd_set_active_ctx (
    struct upisnd_ctx_t * ctx
)

upisnd_init_internal#

static struct upisnd_ctx_t * upisnd_init_internal (
    const char * sysfs_base
)

upisnd_path#

static int upisnd_path (
    char * path,
    upisnd_path_type_t type,
    const char * sysfs_base
)

upisnd_open_fd#

static int upisnd_open_fd (
    upisnd_path_type_t type,
    int flags,
    const char * sysfs_base
)

upisnd_element_path#

static int upisnd_element_path (
    char * path,
    const char * sysfs_base,
    const char * name,
    upisnd_element_attr_e attr
)

upisnd_element_attr_open#

static int upisnd_element_attr_open (
    upisnd_element_attr_e attr,
    int flags,
    upisnd_element_ref_t el
)

upisnd_element_attr_read_int#

static int upisnd_element_attr_read_int (
    upisnd_element_attr_e attr,
    upisnd_element_ref_t el
)

upisnd_element_attr_write_int#

static int upisnd_element_attr_write_int (
    upisnd_element_attr_e attr,
    upisnd_element_ref_t el,
    int i
)

upisnd_element_attr_read_str#

static int upisnd_element_attr_read_str (
    char * dst,
    size_t n,
    upisnd_element_attr_e attr,
    upisnd_element_ref_t el
)

upisnd_element_attr_write_str#

static int upisnd_element_attr_write_str (
    upisnd_element_attr_e attr,
    upisnd_element_ref_t el,
    const char * str
)

upisnd_unsetup_do#

static int upisnd_unsetup_do (
    const char * sysfs_base,
    const char * name
)

upisnd_element_exists_in_sysfs#

static bool upisnd_element_exists_in_sysfs (
    const char * sysfs_base,
    const char * name
)

upisnd_setup_do#

static upisnd_element_ref_t upisnd_setup_do (
    struct upisnd_ctx_t * ctx,
    const char * name,
    const char * request_fmt,
    ...
)

upisnd_element_get_pull#

static upisnd_pin_pull_e upisnd_element_get_pull (
    upisnd_element_ref_t el,
    upisnd_element_attr_e attr
)

upisnd_unsetup_all_elements#

static int upisnd_unsetup_all_elements (
    struct upisnd_ctx_t * ctx
)

Macro Definition Documentation#

UPISND_DEFINE_STR_TO_ENUM#

#define UPISND_DEFINE_STR_TO_ENUM (
    middle_part,
    count
) `/* multi line expression */`

UPISND_DEFINE_INTERNAL_SETUP_FIELD#

#define UPISND_DEFINE_INTERNAL_SETUP_FIELD (
    shift,
    bits,
    type,
    name
) `/* multi line expression */`

UPISND_DO_WITH_ERR_CHECK#

#define UPISND_DO_WITH_ERR_CHECK (
    x
) `if ((err = (x)) < 0) { return err; }`