/*
* 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
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
+
+#include "block.h"
+#include "qdev.h"
+#include "sys-queue.h"
+
#define USB_TOKEN_SETUP 0x2d
#define USB_TOKEN_IN 0x69 /* device -> host */
#define USB_TOKEN_OUT 0xe1 /* host -> device */
#define USB_MSG_ATTACH 0x100
#define USB_MSG_DETACH 0x101
#define USB_MSG_RESET 0x102
-#define USB_MSG_DESTROY 0x103
-#define USB_RET_NODEV (-1)
+#define USB_RET_NODEV (-1)
#define USB_RET_NAK (-2)
#define USB_RET_STALL (-3)
#define USB_RET_BABBLE (-4)
+#define USB_RET_ASYNC (-5)
#define USB_SPEED_LOW 0
#define USB_SPEED_FULL 1
#define USB_DT_INTERFACE 0x04
#define USB_DT_ENDPOINT 0x05
+#define USB_ENDPOINT_XFER_CONTROL 0
+#define USB_ENDPOINT_XFER_ISOC 1
+#define USB_ENDPOINT_XFER_BULK 2
+#define USB_ENDPOINT_XFER_INT 3
+
+typedef struct USBBus USBBus;
typedef struct USBPort USBPort;
typedef struct USBDevice USBDevice;
+typedef struct USBDeviceInfo USBDeviceInfo;
+typedef struct USBPacket USBPacket;
/* definition of a USB device */
struct USBDevice {
+ DeviceState qdev;
+ USBDeviceInfo *info;
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 destroy);
- 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;
char devname[32];
-
+ int attached;
+
int state;
uint8_t setup_buf[8];
uint8_t data_buf[1024];
int setup_index;
};
+struct USBDeviceInfo {
+ DeviceInfo qdev;
+ int (*init)(USBDevice *dev);
+
+ /*
+ * Process USB packet.
+ * Called by the HC (Host Controller).
+ *
+ * Returns length of the transaction
+ * or one of the USB_RET_XXX codes.
+ */
+ int (*handle_packet)(USBDevice *dev, USBPacket *p);
+
+ /*
+ * Called when device is destroyed.
+ */
+ void (*handle_destroy)(USBDevice *dev);
+
+ /*
+ * Reset the device
+ */
+ void (*handle_reset)(USBDevice *dev);
+
+ /*
+ * Process control request.
+ * Called from handle_packet().
+ *
+ * Returns length or one of the USB_RET_ codes.
+ */
+ int (*handle_control)(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data);
+
+ /*
+ * Process data transfers (both BULK and ISOC).
+ * Called from handle_packet().
+ *
+ * Returns length or one of the USB_RET_ codes.
+ */
+ int (*handle_data)(USBDevice *dev, USBPacket *p);
+};
+
typedef void (*usb_attachfn)(USBPort *port, USBDevice *dev);
/* USB port on which a device can be connected */
usb_attachfn attach;
void *opaque;
int index; /* internal port index, may be used with the opaque */
- struct USBPort *next; /* Used internally by qemu. */
+ TAILQ_ENTRY(USBPort) next;
};
-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);
+typedef void USBCallback(USBPacket * packet, void *opaque);
+
+/* Structure used to hold information about an active USB packet. */
+struct USBPacket {
+ /* Data fields for use by the driver. */
+ int pid;
+ uint8_t devaddr;
+ uint8_t devep;
+ uint8_t *data;
+ int len;
+ /* Internal use by the USB layer. */
+ USBCallback *complete_cb;
+ void *complete_opaque;
+ USBCallback *cancel_cb;
+ void *cancel_opaque;
+};
-/* usb hub */
-USBDevice *usb_hub_init(int nb_ports);
+/* Defer completion of a USB packet. The hadle_packet routine should then
+ return USB_RET_ASYNC. Packets that complete immediately (before
+ handle_packet returns) should not call this method. */
+static inline void usb_defer_packet(USBPacket *p, USBCallback *cancel,
+ void * opaque)
+{
+ p->cancel_cb = cancel;
+ p->cancel_opaque = opaque;
+}
-/* usb-uhci.c */
-void usb_uhci_init(PCIBus *bus, int devfn);
+/* Notify the controller that an async packet is complete. This should only
+ be called for packets previously deferred with usb_defer_packet, and
+ should never be called from within handle_packet. */
+static inline void usb_packet_complete(USBPacket *p)
+{
+ p->complete_cb(p, p->complete_opaque);
+}
-/* usb-ohci.c */
-void usb_ohci_init(struct PCIBus *bus, int num_ports, int devfn);
+/* Cancel an active packet. The packed must have been deferred with
+ usb_defer_packet, and not yet completed. */
+static inline void usb_cancel_packet(USBPacket * p)
+{
+ p->cancel_cb(p, p->cancel_opaque);
+}
+
+void usb_attach(USBPort *port, USBDevice *dev);
+int usb_generic_handle_packet(USBDevice *s, USBPacket *p);
+int set_usb_string(uint8_t *buf, const char *str);
+void usb_send_msg(USBDevice *dev, int msg);
/* usb-linux.c */
USBDevice *usb_host_device_open(const char *devname);
-void usb_host_info(void);
+int usb_host_device_close(const char *devname);
+void usb_host_info(Monitor *mon);
/* usb-hid.c */
-USBDevice *usb_mouse_init(void);
-USBDevice *usb_tablet_init(void);
+void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *));
/* usb-msd.c */
USBDevice *usb_msd_init(const char *filename);
+BlockDriverState *usb_msd_get_bdrv(USBDevice *dev);
+
+/* usb-net.c */
+USBDevice *usb_net_init(NICInfo *nd);
+
+/* usb-bt.c */
+USBDevice *usb_bt_init(HCIInfo *hci);
+
+/* usb-serial.c */
+USBDevice *usb_serial_init(const char *filename);
+
+/* usb ports of the VM */
+
+#define VM_USB_HUB_SIZE 8
+
+/* usb-musb.c */
+enum musb_irq_source_e {
+ musb_irq_suspend = 0,
+ musb_irq_resume,
+ musb_irq_rst_babble,
+ musb_irq_sof,
+ musb_irq_connect,
+ musb_irq_disconnect,
+ musb_irq_vbus_request,
+ musb_irq_vbus_error,
+ musb_irq_rx,
+ musb_irq_tx,
+ musb_set_vbus,
+ musb_set_session,
+ __musb_irq_max,
+};
+
+typedef struct MUSBState MUSBState;
+MUSBState *musb_init(qemu_irq *irqs);
+uint32_t musb_core_intr_get(MUSBState *s);
+void musb_core_intr_clear(MUSBState *s, uint32_t mask);
+void musb_set_size(MUSBState *s, int epnum, int size, int is_tx);
+
+/* usb-bus.c */
+
+struct USBBus {
+ BusState qbus;
+ int busnr;
+ int nfree;
+ int nused;
+ TAILQ_HEAD(, USBPort) free;
+ TAILQ_HEAD(, USBPort) used;
+ TAILQ_ENTRY(USBBus) next;
+};
+
+USBBus *usb_bus_new(DeviceState *host);
+USBBus *usb_bus_find(int busnr);
+void usb_qdev_register(USBDeviceInfo *info);
+void usb_qdev_register_many(USBDeviceInfo *info);
+USBDevice *usb_create(USBBus *bus, const char *name);
+USBDevice *usb_create_simple(USBBus *bus, const char *name);
+void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
+ usb_attachfn attach);
+int usb_device_attach(USBDevice *dev);
+int usb_device_delete_addr(int busnr, int addr);
+
+static inline USBBus *usb_bus_from_device(USBDevice *d)
+{
+ return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
+}
projects / qemu / blobdiff