Add driver files

Driver/pcie40_driver/ecs.h

+#ifndef __PCIE40_DRIVER_ECS_H
+#define __PCIE40_DRIVER_ECS_H
+//p40driver``+
+
+#include "common.h"
+#include <linux/fs.h>
+
+#define P40_ECS_CDEV_BASEMINOR (0)
+#define P40_ECS_CDEV_COUNT (2)
+
+#define P40_ECS_BARS_MASK ((1<<0)|(1<<2)) //BAR0, BAR2
+
+//ug`pcie40_driver.files`bar0 _ /dev/pcie40_?_bar0::
+// Device to access user registers on the FPGA.
+#define BAR0_CDEV_MINOR (P40_ECS_CDEV_BASEMINOR + 0)
+static const char BAR0_CDEV_NAME[] = "bar0";
+
+//ug`pcie40_driver.files`bar2 _ /dev/pcie40_?_bar2::
+// Device to access low-level registers on the FPGA.
+#define BAR2_CDEV_MINOR (P40_ECS_CDEV_BASEMINOR + 1)
+static const char BAR2_CDEV_NAME[] = "bar2";
+
+//+`pcie40_ecs_state`
+struct pcie40_ecs_state {
+  struct pcie40_state *common;
+
+  dev_t dev_num; //base MAJOR/MINOR numbers for device files
+  struct cdev bar0_cdev;
+  struct cdev bar2_cdev;
+};
+
+//+`ecs_open`
+static int ecs_open(struct inode *inode, struct file *filp)//;?>
+{
+  struct pcie40_ecs_state *state = NULL;
+  switch (iminor(inode)) {
+    case BAR0_CDEV_MINOR:
+      printk(P40_INFO "BAR0", P40_PARM);
+      state = container_of(inode->i_cdev, struct pcie40_ecs_state, bar0_cdev);
+      break;
+    case BAR2_CDEV_MINOR:
+      printk(P40_INFO "BAR2", P40_PARM);
+      state = container_of(inode->i_cdev, struct pcie40_ecs_state, bar2_cdev);
+      break;
+    default:
+      printk(P40_INFO "invalid BAR", P40_PARM);
+      return -EINVAL;
+  }
+  filp->private_data = state;
+
+  return 0;
+}
+
+//+`ecs_release`
+static int ecs_release(struct inode *inode, struct file *filp)//;?>
+{
+  struct pcie40_ecs_state *state = NULL;
+  switch (iminor(inode)) {
+    case BAR0_CDEV_MINOR:
+      printk(P40_INFO "BAR0", P40_PARM);
+      state = container_of(inode->i_cdev, struct pcie40_ecs_state, bar0_cdev);
+      break;
+    case BAR2_CDEV_MINOR:
+      printk(P40_INFO "BAR2", P40_PARM);
+      state = container_of(inode->i_cdev, struct pcie40_ecs_state, bar2_cdev);
+      break;
+    default:
+      printk(P40_INFO "invalid BAR", P40_PARM);
+      return -EINVAL;
+  }
+  if (filp->private_data != state) {
+    printk(P40_ERR "inconsistent private_data\n", P40_PARM);
+    return -EINVAL;
+  }
+  filp->private_data = NULL;
+
+  return 0;
+}
+
+static struct class *pcie40_ecs_class = NULL;
+
+//+`pcie40_ecs_init` Register ECS device class.
+int pcie40_ecs_init(void)//;?>
+{
+  int rc = 0;
+
+  //? This functions registers a dedicated device class used to create ECS device files.
+  pcie40_ecs_class = class_create(THIS_MODULE, PCIE40_ECS_CLASS);
+  if (IS_ERR(pcie40_ecs_class)) {
+    rc = PTR_ERR(pcie40_ecs_class);
+    printk(P40_WARN "failed to register class, %d\n", P40_PARM, rc);
+    goto err_class_create;
+  }
+  //pcie40_ecs_class->dev_uevent = pcie40_dev_uevent;
+  pcie40_ecs_class->devnode = pcie40_devnode;
+
+err_class_create:
+  return rc;
+}
+
+//+`pcie40_ecs_exit` Destroy ECS device class.
+void pcie40_ecs_exit(void)//;?>
+{
+  class_destroy(pcie40_ecs_class);
+}
+
+#endif//__PCIE40_DRIVER_ECS_H