initial USB support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1597 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 139 insertions, 0 deletions

diff --git a/hw/usb.h b/hw/usb.h
new file mode 100644
index 0000000000..1bfce3b516
--- /dev/null
+++ b/hw/usb.h
@@ -0,0 +1,139 @@
+/*
+ * QEMU USB API
+ * 
+ * Copyright (c) 2005 Fabrice Bellard
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#define USB_TOKEN_SETUP 0x2d
+#define USB_TOKEN_IN    0x69 /* device -> host */
+#define USB_TOKEN_OUT   0xe1 /* host -> device */
+
+/* specific usb messages, also sent in the 'pid' parameter */
+#define USB_MSG_ATTACH   0x100
+#define USB_MSG_DETACH   0x101
+#define USB_MSG_RESET    0x102
+
+#define USB_RET_NODEV  (-1) 
+#define USB_RET_NAK    (-2)
+#define USB_RET_STALL  (-3)
+#define USB_RET_BABBLE (-4)
+
+#define USB_SPEED_LOW   0
+#define USB_SPEED_FULL  1
+#define USB_SPEED_HIGH  2
+
+#define USB_STATE_NOTATTACHED 0
+#define USB_STATE_ATTACHED    1
+//#define USB_STATE_POWERED     2
+#define USB_STATE_DEFAULT     3
+//#define USB_STATE_ADDRESS     4
+//#define	USB_STATE_CONFIGURED  5
+#define USB_STATE_SUSPENDED   6
+
+#define USB_DIR_OUT			0
+#define USB_DIR_IN			0x80
+
+#define USB_TYPE_MASK			(0x03 << 5)
+#define USB_TYPE_STANDARD		(0x00 << 5)
+#define USB_TYPE_CLASS			(0x01 << 5)
+#define USB_TYPE_VENDOR			(0x02 << 5)
+#define USB_TYPE_RESERVED		(0x03 << 5)
+
+#define USB_RECIP_MASK			0x1f
+#define USB_RECIP_DEVICE		0x00
+#define USB_RECIP_INTERFACE		0x01
+#define USB_RECIP_ENDPOINT		0x02
+#define USB_RECIP_OTHER			0x03
+
+#define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
+#define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
+
+#define USB_REQ_GET_STATUS		0x00
+#define USB_REQ_CLEAR_FEATURE		0x01
+#define USB_REQ_SET_FEATURE		0x03
+#define USB_REQ_SET_ADDRESS		0x05
+#define USB_REQ_GET_DESCRIPTOR		0x06
+#define USB_REQ_SET_DESCRIPTOR		0x07
+#define USB_REQ_GET_CONFIGURATION	0x08
+#define USB_REQ_SET_CONFIGURATION	0x09
+#define USB_REQ_GET_INTERFACE		0x0A
+#define USB_REQ_SET_INTERFACE		0x0B
+#define USB_REQ_SYNCH_FRAME		0x0C
+
+#define USB_DEVICE_SELF_POWERED		0
+#define USB_DEVICE_REMOTE_WAKEUP	1
+
+#define USB_DT_DEVICE			0x01
+#define USB_DT_CONFIG			0x02
+#define USB_DT_STRING			0x03
+#define USB_DT_INTERFACE		0x04
+#define USB_DT_ENDPOINT			0x05
+
+typedef struct USBPort USBPort;
+typedef struct USBDevice USBDevice;
+
+/* definition of a USB device */
+struct USBDevice {
+    void *opaque;
+    int (*handle_packet)(USBDevice *dev, int pid, 
+                         uint8_t devaddr, uint8_t devep,
+                         uint8_t *data, int len);
+    int speed;
+    
+    /* The following fields are used by the generic USB device
+       layer. They are here just to avoid creating a new structure for
+       them. */
+    void (*handle_reset)(USBDevice *dev);
+    int (*handle_control)(USBDevice *dev, int request, int value,
+                          int index, int length, uint8_t *data);
+    int (*handle_data)(USBDevice *dev, int pid, uint8_t devep,
+                       uint8_t *data, int len);
+    uint8_t addr;
+    
+    int state;
+    uint8_t setup_buf[8];
+    uint8_t data_buf[1024];
+    int remote_wakeup;
+    int setup_state;
+    int setup_len;
+    int setup_index;
+};
+
+/* USB port on which a device can be connected */
+struct USBPort {
+    void (*attach)(USBPort *port, USBDevice *dev);
+    void *opaque;
+    int index; /* internal port index, may be used with the opaque */
+};
+
+void usb_attach(USBPort *port, USBDevice *dev);
+int usb_generic_handle_packet(USBDevice *s, int pid, 
+                              uint8_t devaddr, uint8_t devep,
+                              uint8_t *data, int len);
+int set_usb_string(uint8_t *buf, const char *str);
+
+/* usb hub */
+USBDevice *usb_hub_init(USBPort **usb_ports, int nb_ports);
+
+/* usb-uhci.c */
+void usb_uhci_init(PCIBus *bus, USBPort **usb_ports);
+
+/* usb-linux.c */
+USBDevice *usb_host_hub_init(void);