gl-mifi-mcu: remove package as it is device specific and I can't test it anymore

Signed-off-by: Nuno Gonçalves <nunojpg@gmail.com>

diff --git a/utils/gl-mifi-mcu/Makefile b/utils/gl-mifi-mcu/Makefile
deleted file mode 100755 (executable)
index dd47e2d..0000000
--- a/utils/gl-mifi-mcu/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=gl-mifi-mcu
-PKG_VERSION:=2
-PKG_RELEASE:=1
-
-PKG_MAINTAINER:=Nuno Goncalves <nunojpg@gmail.com>
-PKG_LICENSE:=GPL-3.0-or-later
-
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/gl-mifi-mcu
-  SUBMENU:=Hardware Monitoring Support
-  TITLE:=GL.iNet GL-MiFI Power monitoring support
-  AUTOLOAD:=$(call AutoLoad,60,gl-mifi-mcu)
-  FILES:=$(PKG_BUILD_DIR)/gl-mifi-mcu.ko
-endef
-
-define KernelPackage/gl-mifi-mcu/description
-  Interfaces with GL-MiFI Power monitoring MCU with a soft UART
-  and provides Battery SOC, Temperature and charging data at
-  /proc/gl_mifi_mcu.
-  This feature is supported from GL-MiFi PCB revision v2.6.2.
-  The content of /proc/gl_mifi_mcu is JSON as received from the
-  UART and will frequenty contain corrupted data due to soft UART
-  unreliability. User application must validate the data.
-endef
-
-define Build/Compile
-       $(KERNEL_MAKE) \
-               M="$(PKG_BUILD_DIR)" \
-               modules
-endef
-
-$(eval $(call KernelPackage,gl-mifi-mcu))

diff --git a/utils/gl-mifi-mcu/src/Makefile b/utils/gl-mifi-mcu/src/Makefile
deleted file mode 100755 (executable)
index bce424b..0000000
--- a/utils/gl-mifi-mcu/src/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-obj-m += gl-mifi-mcu.o
-
-gl-mifi-mcu-objs := module.o
-

diff --git a/utils/gl-mifi-mcu/src/module.c b/utils/gl-mifi-mcu/src/module.c
deleted file mode 100755 (executable)
index b73016e..0000000
--- a/utils/gl-mifi-mcu/src/module.c
+++ /dev/null
@@ -1,210 +0,0 @@
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/hrtimer.h>
-#include <linux/interrupt.h>
-#include <linux/ktime.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/version.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Nuno Goncalves");
-MODULE_DESCRIPTION("GL-MiFi power monitoring MCU interface");
-MODULE_VERSION("0.1");
-
-static int gpio_tx = 19;
-static int gpio_rx = 8;
-static int baudrate = 1200;
-static int query_interval_sec = 4;
-
-static struct hrtimer timer_tx;
-static struct hrtimer timer_rx;
-static ktime_t period;
-static int rx_bit_index = -1;
-
-static unsigned read_buf_ready = 0;
-static unsigned read_buf_size = 0;
-static char read_buf[2][64] = {{0},{0}};
-
-static int proc_show(struct seq_file *m, void *v)
-{
-  seq_printf(m, "%s\n", read_buf[read_buf_ready]);
-  return 0;
-}
-
-static int proc_open(struct inode *inode, struct  file *file)
-{
-  return single_open(file, proc_show, NULL);
-}
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0)
-static const struct proc_ops hello_proc_ops = {
-  .proc_open = proc_open,
-  .proc_read = seq_read,
-  .proc_lseek = seq_lseek,
-  .proc_release = single_release,
-};
-#else
-static const struct file_operations hello_proc_ops = {
-  .owner = THIS_MODULE,
-  .open = proc_open,
-  .read = seq_read,
-  .llseek = seq_lseek,
-  .release = single_release,
-};
-#endif
-
-static irqreturn_t handle_rx_start(int irq, void* device)
-{
-  if (rx_bit_index == -1)
-  {
-    hrtimer_start(&timer_rx, ktime_set(0, period / 2), HRTIMER_MODE_REL);
-  }
-  return IRQ_HANDLED;
-}
-
-static enum hrtimer_restart handle_tx(struct hrtimer* timer)
-{
-  ktime_t current_time = ktime_get();
-  const unsigned char character = 'g';
-  static int bit_index = -1;
-
-  // Start bit.
-  if (bit_index == -1)
-  {
-      gpio_set_value(gpio_tx, 0);
-      bit_index++;
-  }
-
-  // Data bits.
-  else if (0 <= bit_index && bit_index < 8)
-  {
-    gpio_set_value(gpio_tx, 1 & (character >> bit_index));
-    bit_index++;
-  }
-
-  // Stop bit.
-  else if (bit_index == 8)
-  {
-    gpio_set_value(gpio_tx, 1);
-    bit_index = -1;
-  }
-
-  hrtimer_forward(&timer_tx, current_time, bit_index == 8
-    ? ktime_set(query_interval_sec, 0) //wait for next query cycle
-    : period); //wait for next bit period
-
-  return HRTIMER_RESTART;
-}
-
-void receive_character(unsigned char character)
-{
-  if(character == '{')
-    read_buf_size = 0;
-
-  if(read_buf_size < (sizeof(read_buf[0])-1) || character == '}')
-  {
-    read_buf[!read_buf_ready][read_buf_size++] = character;
-    if(character == '}')
-    {
-      read_buf[!read_buf_ready][read_buf_size] = '\0';
-      read_buf_ready = !read_buf_ready;
-      read_buf_size = 0;
-    }
-  }
-}
-
-static enum hrtimer_restart handle_rx(struct hrtimer* timer)
-{
-  ktime_t current_time = ktime_get();
-  static unsigned int character = 0;
-  int bit_value = gpio_get_value(gpio_rx);
-  enum hrtimer_restart result = HRTIMER_NORESTART;
-  bool must_restart_timer = false;
-
-  // Start bit.
-  if (rx_bit_index == -1)
-  {
-    rx_bit_index++;
-    character = 0;
-    must_restart_timer = true;
-  }
-
-  // Data bits.
-  else if (0 <= rx_bit_index && rx_bit_index < 8)
-  {
-    if (bit_value == 0)
-    {
-      character &= 0xfeff;
-    }
-    else
-    {
-      character |= 0x0100;
-    }
-
-    rx_bit_index++;
-    character >>= 1;
-    must_restart_timer = true;
-  }
-
-  // Stop bit.
-  else if (rx_bit_index == 8)
-  {
-    receive_character(character);
-    rx_bit_index = -1;
-  }
-
-  // Restarts the RX timer.
-  if (must_restart_timer)
-  {
-    hrtimer_forward(&timer_rx, current_time, period);
-    result = HRTIMER_RESTART;
-  }
-
-  return result;
-}
-
-static int __init gl_mifi_mcu_init(void)
-{
-  bool success = true;
-
-  proc_create("gl_mifi_mcu", 0, NULL, &hello_proc_ops);
-
-  success &= gpio_request(gpio_tx, "soft_uart_tx") == 0;
-  success &= gpio_direction_output(gpio_tx, 1) == 0;
-  success &= gpio_request(gpio_rx, "soft_uart_rx") == 0;
-  success &= gpio_direction_input(gpio_rx) == 0;
-  success &= gpio_set_debounce(gpio_rx, 1000/baudrate/2);
-
-  success &= request_irq(
-    gpio_to_irq(gpio_rx),
-    handle_rx_start,
-    IRQF_TRIGGER_FALLING,
-    "gl_mifi_mcu_irq_handler",
-    NULL) == 0;
-
-  hrtimer_init(&timer_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-  timer_tx.function = &handle_tx;
-  hrtimer_init(&timer_rx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-  timer_rx.function = &handle_rx;
-  period = ktime_set(0, 1000000000/baudrate);
-  hrtimer_start(&timer_tx, period, HRTIMER_MODE_REL);
-
-  return success;
-}
-
-static void __exit gl_mifi_mcu_exit(void)
-{
-  disable_irq(gpio_to_irq(gpio_rx));
-  hrtimer_cancel(&timer_tx);
-  hrtimer_cancel(&timer_rx);
-  free_irq(gpio_to_irq(gpio_rx), NULL);
-  gpio_set_value(gpio_tx, 0);
-  gpio_free(gpio_tx);
-  gpio_free(gpio_rx);
-  remove_proc_entry("gl_mifi_mcu", NULL);
-}
-
-module_init(gl_mifi_mcu_init);
-module_exit(gl_mifi_mcu_exit);
-