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76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
// vi:ft=c
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#ifndef NET_H
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#define NET_H
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#include <linux/input.h>
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#include <stdint.h>
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#include <stdlib.h>
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typedef enum {
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DeviceInfo = 1,
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DeviceReport = 2,
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DeviceDestroy = 3,
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ControllerState = 4,
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} MessageCode;
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typedef struct {
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MessageCode code;
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uint16_t abs_count;
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uint16_t rel_count;
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uint16_t key_count;
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uint16_t abs_id[ABS_CNT];
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uint32_t abs_min[ABS_CNT];
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uint32_t abs_max[ABS_CNT];
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uint32_t abs_fuzz[ABS_CNT];
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uint32_t abs_flat[ABS_CNT];
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uint32_t abs_res[ABS_CNT];
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uint16_t rel_id[REL_CNT];
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uint16_t key_id[KEY_CNT];
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} MessageDeviceInfo;
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#define MSS_DEVICE_INFO(abs, rel, key) (6 + abs * 22 + rel * 2 + key * 2)
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// MSS -> Message Serialized Size:
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// Size of the data of the message when serialized (no alignment / padding)
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typedef struct {
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MessageCode code;
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uint16_t abs_count;
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uint16_t rel_count;
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uint16_t key_count;
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uint32_t abs[ABS_CNT];
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uint32_t rel[REL_CNT];
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uint8_t key[KEY_CNT];
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} MessageDeviceReport;
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#define MSS_DEVICE_REPORT(abs, rel, key) (6 + abs * 4 + rel * 4 + key * 1)
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typedef struct {
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MessageCode code;
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uint8_t led[3];
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uint8_t small_rumble;
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uint8_t big_rumble;
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uint8_t flash_on;
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uint8_t flash_off;
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} MessageControllerState;
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#define MSS_CONTROLLER_STATE 7
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typedef union {
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MessageCode code;
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MessageDeviceInfo device_info;
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MessageDeviceReport device_report;
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MessageControllerState controller_state;
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} Message;
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// Read a message from a buffer with a length, message goes into dst, returns -1 if a messsage couldn't be
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// read
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int msg_deserialize(const uint8_t *buf, size_t len, Message *dst);
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// Write a message to a buffer with a length, return -1 if the message couldn't be written (buffer not big
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// enough). Returns the length of the serialized message if succeeded.
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int msg_serialize(uint8_t *buf, size_t len, Message *msg);
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#endif
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