From 8cdc7528c800a3f10bca3e875e76f6d9661ab88f Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Sat, 7 Dec 2019 17:12:27 +0100
Subject: added net_alloc; fixed cell modem driver

---
 code/esp32/components/eos/pcm.c | 134 ----------------------------------------
 1 file changed, 134 deletions(-)
 delete mode 100644 code/esp32/components/eos/pcm.c

(limited to 'code/esp32/components/eos/pcm.c')

diff --git a/code/esp32/components/eos/pcm.c b/code/esp32/components/eos/pcm.c
deleted file mode 100644
index edfcf88..0000000
--- a/code/esp32/components/eos/pcm.c
+++ /dev/null
@@ -1,134 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-#include <freertos/FreeRTOS.h>
-#include <freertos/task.h>
-#include <freertos/queue.h>
-#include <driver/i2s.h>
-#include <esp_log.h>
-
-#include "eos.h"
-#include "modem.h"
-
-static i2s_dev_t* I2S[I2S_NUM_MAX] = {&I2S0, &I2S1};
-
-#define BUF_SIZE    2048
-
-static QueueHandle_t i2s_queue;
-
-static void i2s_event_task(void *pvParameters) {
-    size_t size_out;
-    i2s_event_t event;
-    // Reserve a buffer and process incoming data
-    uint8_t *data = (uint8_t *) malloc(BUF_SIZE);
-
-    int first = 1;
-    uint8_t *data_first = NULL;
-
-    while (1) {
-        // Waiting for I2S event.
-        if (xQueueReceive(i2s_queue, (void * )&event, (portTickType)portMAX_DELAY)) {
-            switch (event.type) {
-                case I2S_EVENT_RX_DONE:
-                    // Event of I2S receiving data
-                    // printf("*** I2S DATA RECEIVED: %d\n ***", event.size);
-                    i2s_read(I2S_NUM_0, (void *)data, BUF_SIZE, &size_out, 1000 / portTICK_RATE_MS);
-                    if (first) {
-                        if (data_first) {
-                            first = 0;
-                            i2s_write(I2S_NUM_0, (const void *)data_first, BUF_SIZE, &size_out, 1000 / portTICK_RATE_MS);
-                            free(data_first);
-                            data_first = NULL;
-                        } else {
-                            data_first = (uint8_t *) malloc(BUF_SIZE);
-                            memcpy(data_first, data, BUF_SIZE);
-                        }
-
-                    }
-                    i2s_write(I2S_NUM_0, (const void *)data, BUF_SIZE, &size_out, 1000 / portTICK_RATE_MS);
-                    break;
-                case I2S_EVENT_DMA_ERROR:
-                    printf("*** I2S DMA ERROR ***");
-                    break;
-                default:
-                    break;
-            }
-        }
-    }
-    free(data);
-    vTaskDelete(NULL);
-}
-
-static void i2s_write_task(void *pvParameters) {
-    uint8_t *data = (uint8_t *) malloc(BUF_SIZE);
-    memset(data, 0x0, BUF_SIZE);
-
-    int i;
-    for (i=0; i<BUF_SIZE; i+=16) {
-        data[i+3] = 0xaa;
-        data[i+2] = 0xff;
-    }
-    while(1) {
-        size_t size_out;
-        // i2s_read(I2S_NUM_0, (void *)data, BUF_SIZE, &size_out, 1000 / portTICK_RATE_MS);
-        // printf("!! I2S DATA IN: %d\n", size_out);
-        i2s_write(I2S_NUM_0, (const void *)data, BUF_SIZE, &size_out, 1000 / portTICK_RATE_MS);
-        printf("I2S DATA OUT: %d\n", size_out);
-    }
-    free(data);
-    vTaskDelete(NULL);
-}
-
-void eos_pcm_init(void) {
-    esp_err_t err;
-
-    i2s_config_t i2s_config = {
-        .mode = I2S_MODE_SLAVE | I2S_MODE_TX | I2S_MODE_RX,
-        .sample_rate = 32000,
-        .bits_per_sample = 32,
-        .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT,
-        .communication_format =  I2S_COMM_FORMAT_PCM | I2S_COMM_FORMAT_PCM_LONG,
-        .dma_buf_count = 4,
-        .dma_buf_len = 512,
-        .use_apll = true,
-        .fixed_mclk = 2048000 * 8,
-        .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1
-    };
-
-    i2s_pin_config_t pin_config = {
-        .bck_io_num = 33,
-        .ws_io_num = 4,
-        .data_out_num = 2,
-        .data_in_num = 34
-    };
-    err = i2s_driver_install(I2S_NUM_0, &i2s_config, 10, &i2s_queue);   //install and start i2s driver
-    printf("I2S ERR: %d\n", err);
-    err = i2s_set_pin(I2S_NUM_0, &pin_config);
-    printf("I2S ERR: %d\n", err);
-    i2s_stop(I2S_NUM_0);
-    I2S[I2S_NUM_0]->conf.tx_mono = 1;
-    I2S[I2S_NUM_0]->conf.rx_mono = 1;
-    i2s_start(I2S_NUM_0);
-
-    // Create a task to handle i2s event from ISR
-    xTaskCreate(i2s_event_task, "i2s_event_task", 2048, NULL, EOS_IRQ_PRIORITY_I2S, NULL);
-    // xTaskCreate(i2s_write_task, "i2s_write_task", 2048, NULL, EOS_IRQ_PRIORITY_I2S, NULL);
-}
-
-ssize_t eos_pcm_write(void *data, size_t size) {
-    size_t size_out;
-
-    esp_err_t ret = i2s_write(I2S_NUM_0, (const void *)data, size, &size_out, portMAX_DELAY);
-    if (ret != ESP_OK) return EOS_ERR;
-    return size_out;
-}
-
-void eos_pcm_call(void) {
-    const char *s = "ATD0631942317;\r";
-
-    i2s_zero_dma_buffer(I2S_NUM_0);
-    eos_modem_write((void *)s, strlen(s));
-    vTaskDelay(1000 / portTICK_RATE_MS);
-    i2s_start(I2S_NUM_0);
-}
-
-- 
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