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#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
#include <freertos/task.h>
#include <freertos/queue.h>
#include <esp_log.h>
#include "eos.h"
#include "msgq.h"
#include "net.h"
#include "cell.h"
#define CELL_SIZE_QUEUE 2
static const char *TAG = "EOS CELL";
static uint8_t cell_mode;
static EOSBufQ cell_buf_q;
static unsigned char *cell_bufq_array[CELL_SIZE_QUEUE];
static SemaphoreHandle_t mutex;
static QueueHandle_t cell_queue;
static void _cell_handler(unsigned char _mtype, unsigned char *buffer, uint16_t buf_len) {
uint8_t mtype;
if (buf_len < 1) return;
mtype = buffer[0];
switch (mtype & EOS_CELL_MTYPE_MASK) {
case EOS_CELL_MTYPE_DEV: {
switch (mtype & ~EOS_CELL_MTYPE_MASK) {
case EOS_CELL_MTYPE_STATUS: {
size_t rv;
rv = eos_modem_get_status(buffer + 1);
eos_net_reply(EOS_NET_MTYPE_CELL, buffer, rv + 1);
break;
}
case EOS_CELL_MTYPE_RESET: {
eos_modem_reset();
break;
}
case EOS_CELL_MTYPE_UART_TAKE: {
uint8_t mode;
mode = eos_modem_get_mode();
if (mode == EOS_CELL_UART_MODE_NONE) break;
eos_modem_set_mode(EOS_CELL_UART_MODE_RELAY);
cell_mode = mode;
break;
}
case EOS_CELL_MTYPE_UART_GIVE: {
eos_modem_atinit();
eos_modem_set_mode(cell_mode);
break;
}
case EOS_CELL_MTYPE_UART_DATA: {
if (eos_modem_get_mode() == EOS_CELL_UART_MODE_RELAY) eos_modem_write(buffer + 1, buf_len - 1);
break;
}
}
break;
}
case EOS_CELL_MTYPE_VOICE: {
eos_cell_voice_handler(mtype & ~EOS_CELL_MTYPE_MASK, buffer, buf_len);
break;
}
case EOS_CELL_MTYPE_SMS: {
eos_cell_sms_handler(mtype & ~EOS_CELL_MTYPE_MASK, buffer, buf_len);
break;
}
case EOS_CELL_MTYPE_USSD: {
eos_cell_ussd_handler(mtype & ~EOS_CELL_MTYPE_MASK, buffer, buf_len);
break;
}
case EOS_CELL_MTYPE_PDP: {
eos_cell_pdp_handler(mtype & ~EOS_CELL_MTYPE_MASK, buffer, buf_len);
break;
}
}
}
static void cell_handler_task(void *pvParameters) {
EOSMsgItem mi;
while (1) {
if (xQueueReceive(cell_queue, &mi, portMAX_DELAY)) {
_cell_handler(mi.type, mi.buffer, mi.len);
xSemaphoreTake(mutex, portMAX_DELAY);
eos_bufq_push(&cell_buf_q, mi.buffer);
xSemaphoreGive(mutex);
}
}
vTaskDelete(NULL);
}
static void cell_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
EOSMsgItem mi;
unsigned char *buf;
xSemaphoreTake(mutex, portMAX_DELAY);
buf = eos_bufq_pop(&cell_buf_q);
xSemaphoreGive(mutex);
if (buf == NULL) {
if (len) ESP_LOGE(TAG, "Cell message NOT handled: %2x", buffer[0]);
return;
}
memcpy(buf, buffer, len);
mi.type = type;
mi.buffer = buf;
mi.len = len;
xQueueSend(cell_queue, &mi, portMAX_DELAY);
}
void eos_cell_init(void) {
int i;
eos_bufq_init(&cell_buf_q, cell_bufq_array, CELL_SIZE_QUEUE);
for (i=0; i<CELL_SIZE_QUEUE; i++) {
eos_bufq_push(&cell_buf_q, malloc(EOS_NET_SIZE_BUF));
}
mutex = xSemaphoreCreateBinary();
xSemaphoreGive(mutex);
cell_queue = xQueueCreate(CELL_SIZE_QUEUE, sizeof(EOSMsgItem));
xTaskCreate(cell_handler_task, "cell_handler", EOS_TASK_SSIZE_CELL, NULL, EOS_TASK_PRIORITY_CELL, NULL);
eos_net_set_handler(EOS_NET_MTYPE_CELL, cell_handler);
}
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