Adding McHCK DFU Bootloader

[kiibohd-controller.git] / Bootloader / usb-internal.h

diff --git a/Bootloader/usb-internal.h b/Bootloader/usb-internal.h
new file mode 100644 (file)
index 0000000..6d9210c
--- /dev/null
+++ b/Bootloader/usb-internal.h
@@ -0,0 +1,104 @@
+/* Copyright (c) 2011,2012 Simon Schubert <2@0x2c.org>.
+ * Modifications by Jacob Alexander 2014 <haata@kiibohd.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __USB_INTERNAL_H
+#define __USB_INTERNAL_H
+
+/**
+ * Internal driver structures
+ */
+
+/**
+ * USB state machine
+ * =================
+ *
+ * Device configuration states:
+ *
+ * Attached <-> Powered
+ * Powered -(reset)-> Default
+ * Default -(SET_ADDRESS)-> Address
+ * Address -(SET_CONFIGURATION)-> Configured
+ * Configured -(SET_CONFIGURATION 0)-> Address
+ * Address -(SET_ADDRESS 0)-> Default
+ * [Default, Configured, Address] -(reset)-> Default
+ */
+
+// ----- Defines -----
+
+#ifndef USB_MAX_EP
+#define USB_MAX_EP 16
+#endif
+
+
+
+// ----- Structs -----
+
+struct usbd_ep_pipe_state_t {
+       enum usb_ep_pingpong pingpong; /* next desc to use */
+       enum usb_data01 data01;
+       size_t transfer_size;
+       size_t pos;
+       uint8_t *data_buf;
+       const uint8_t *copy_source;
+       int short_transfer;
+       ep_callback_t callback;
+       void *callback_data;
+       size_t ep_maxsize;
+       /* constant */
+       int ep_num;
+       enum usb_ep_dir ep_dir;
+};
+
+struct usbd_ep_state_t {
+       union {
+               struct usbd_ep_pipe_state_t pipe[2];
+               struct {
+                       struct usbd_ep_pipe_state_t rx;
+                       struct usbd_ep_pipe_state_t tx;
+               };
+       };
+};
+
+struct usbd_t {
+       struct usbd_function_ctx_header functions;
+       struct usbd_function control_function;
+       const struct usbd_device *identity;
+       int address;
+       int config;
+       enum usbd_dev_state {
+               USBD_STATE_DISABLED = 0,
+               USBD_STATE_DEFAULT,
+               USBD_STATE_SETTING_ADDRESS,
+               USBD_STATE_ADDRESS,
+               USBD_STATE_CONFIGURED
+       } state;
+       enum usb_ctrl_req_dir ctrl_dir;
+       struct usbd_ep_state_t ep_state[USB_MAX_EP];
+};
+
+extern struct usbd_t usb;
+
+
+
+// ----- Functions -----
+
+void usb_restart(void);
+void usb_enable(void);
+const struct usbd_config *usb_get_config_data(int config);
+
+#endif
+