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#include "streamdeck.h"
#include <bits/pthreadtypes.h>
#include <hidapi/hidapi.h>
#include <pthread.h>
pthread_mutex_t inflate_lock;
int update_current_folder (screen* folder);
int load_folder ();
int load_key ();
int createreadthread (streamdeck* target);
void read_deck_stream (void* target);
int
init ()
{
/*
* Init the HIDAPI library
*/
if (hid_init() < 0)
{
(void) fprintf(stderr, "Could not init the HID library\n");
return -1;
}
/*
* Initialize the lock for inflating the config file
*/
if (pthread_mutex_init(&inflate_lock, NULL))
{
(void) fprintf(stderr, "Could not init lock\n");
return -2;
}
return 0;
}
handler*
create_hid_handler ()
{
handler* res = NULL;
res = malloc(sizeof(handler));
if (!res) {
return NULL;
}
/*
* Create the device handler
*/
/* These are dev id and manufacturer id for the mini */
res->handler = hid_open(0x0fd9, 0x0063, NULL);
if (!res->handler) {
(void) fprintf(stderr, "Could not open Streamdeck!\n");
free(res);
hid_exit();
return NULL;
}
/*
* Set handler to be non-blocking
*/
/* We will likely only want to set this later, or maybe never. */
// if (hid_set_nonblocking(res->handler, 1) < 0) {
// (void) fprintf(stderr, "Could not set HIDAPI handler to be non-blocking\n");
// free(res);
// hid_exit();
// return NULL;
// }
return res;
}
streamdeck*
connect()
{
streamdeck* res = malloc(sizeof(streamdeck));
if (!res)
return NULL;
res->hid_handle = create_hid_handler ();
if (1) /* Replace this with the actual ID of the different streamdecks */
{
screen* startscreen = malloc(sizeof(screen));
startscreen->keys = malloc(sizeof(key) * STREAMDECK_MINI);
for (int i = 0; i < STREAMDECK_MINI; i++)
{
/* Upon second thought, this may actually not be necessary */
pthread_mutex_init(&(startscreen->keys + i)->key_mutex , NULL);
}
res->curr_screen = startscreen;
}
/* We will either to this before or after we initialize the streamdeck struct */
if (resetkeystream(res->hid_handle) != 0)
{
fprintf (stderr, "Failed to reset key stream!\n");
}
return res;
}
int
createreadthread(streamdeck* target)
{
if (pthread_create(pthread_t *restrict newthread, NULL, read_deck_stream, target))
return 1;
return 0;
}
int
resetkeystream(handler* deck)
{
unsigned char data[IMAGE_REPORT_LENGTH];
if (!memset(data, 0x00, IMAGE_REPORT_LENGTH))
return -2;
data[0] = 0x02;
if (hid_write(deck->handler, data, IMAGE_REPORT_LENGTH) < 0)
{
printf("Unable to write()/2: %ls\n", hid_error(deck->handler));
return -1;
}
return 0;
}
/* Clears the buttons and displays "standby image" */
int
reset(handler* deck)
{
unsigned char data[17];
if (set_data(data) == -1)
return -2;
data[0] = 0x0B;
data[1] = 0x63;
if (hid_send_feature_report(deck->handler, data, 17) == -1)
return -1;
return 0;
}
int
set_key_image(streamdeck* deck, int key, image* img)
{
if (!(0 <= key && key < deck->numkeys))
return -1;
/* Pass NULL for blank key */
if (!img)
{
}
size_t remaining = img->size;
int pages = 0;
unsigned char data[17];
while (remaining > 0)
{
size_t sent_len = (remaining > IMAGE_REPORT_LENGTH) ? IMAGE_REPORT_LENGTH : remaining;
size_t total_sent = pages * IMAGE_REPORT_LENGTH;
if (set_data(data) == -1)
return -1;
data[0] = 0x02;
data[1] = 0x01;
data[2] = pages;
data[4] = (remaining == sent_len) ? 1 : 0;
data[5] = key + 1;
unsigned char* payload = calloc (17 + sent_len, sizeof (unsigned char));
memcpy(payload, data, 17);
memcpy(payload + 17, img->data + total_sent, sent_len);
if (hid_write(deck->hid_handle->handler, payload, IMAGE_REPORT_LENGTH + 17) == -1)
return -1;
remaining = remaining - sent_len;
pages++;
}
}
int
update_current_folder (screen* folder)
{
for (int i = 0; i < STREAMDECK_MINI; i++ )
{
;
}
return 0;
}
int
load_folder ()
{
}
int
load_key ()
{
}
void
destroy_streamdeck (streamdeck* target)
{
hid_close (target->hid_handle->handler);
free (target->hid_handle);
free (target->curr_screen);
free (target);
}
void
clean_exit ()
{
hid_exit ();
}
/* Eventually want to change this to return the old
* brightness level */
int
set_brightness (streamdeck* deck, int new_level)
{
new_level = (new_level > 100) ? 100 : new_level;
unsigned char data[17];
if (set_data(data) == -1)
return -2;
data[0] = 0x05;
data[1] = 0x55;
data[2] = 0xaa;
data[3] = 0xd1;
data[4] = 0x01;
data[5] = new_level;
if (hid_send_feature_report(deck->hid_handle->handler, data, 17) == -1)
return -1;
return 0;
}
void
read_deck_stream (void* target)
{
streamdeck* deck = (streamdeck*) target;
if (!deck)
return;
}
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