patch-2.4.20 linux-2.4.20/drivers/usb/hc_simple.h

• Lines: 232
• Date: Thu Nov 28 15:53:14 2002
• Orig file: linux-2.4.19/drivers/usb/hc_simple.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.19/drivers/usb/hc_simple.h linux-2.4.20/drivers/usb/hc_simple.h
@@ -0,0 +1,231 @@
+/*-------------------------------------------------------------------------*/
+/* list of all controllers using this driver 
+ * */
+
+static LIST_HEAD (hci_hcd_list);
+
+/* URB states (urb_state) */
+/* isoc, interrupt single state */
+
+/* bulk transfer main state and 0-length packet */
+#define US_BULK		0
+#define US_BULK0	1
+/* three setup states */
+#define US_CTRL_SETUP	2
+#define US_CTRL_DATA	1
+#define US_CTRL_ACK	0
+
+/*-------------------------------------------------------------------------*/
+/* HC private part of a device descriptor
+ * */
+
+#define NUM_EDS 32
+
+typedef struct epd {
+	struct urb *pipe_head;
+	struct list_head urb_queue;
+//	int urb_state;
+	struct timer_list timeout;
+	int last_iso;		/* timestamp of last queued ISOC transfer */
+
+} epd_t;
+
+struct hci_device {
+	epd_t ed[NUM_EDS];
+};
+
+/*-------------------------------------------------------------------------*/
+/* Virtual Root HUB 
+ */
+
+#define usb_to_hci(usb)	((struct hci_device *)(usb)->hcpriv)
+
+struct virt_root_hub {
+	int devnum;		/* Address of Root Hub endpoint */
+	void *urb;		/* interrupt URB of root hub */
+	int send;		/* active flag */
+	int interval;		/* intervall of roothub interrupt transfers */
+	struct timer_list rh_int_timer;	/* intervall timer for rh interrupt EP */
+};
+
+#if 1
+/* USB HUB CONSTANTS (not OHCI-specific; see hub.h and USB spec) */
+
+/* destination of request */
+#define RH_INTERFACE		0x01
+#define RH_ENDPOINT		0x02
+#define RH_OTHER		0x03
+
+#define RH_CLASS		0x20
+#define RH_VENDOR		0x40
+
+/* Requests: bRequest << 8 | bmRequestType */
+#define RH_GET_STATUS		0x0080
+#define RH_CLEAR_FEATURE	0x0100
+#define RH_SET_FEATURE		0x0300
+#define RH_SET_ADDRESS		0x0500
+#define RH_GET_DESCRIPTOR	0x0680
+#define RH_SET_DESCRIPTOR	0x0700
+#define RH_GET_CONFIGURATION	0x0880
+#define RH_SET_CONFIGURATION	0x0900
+#define RH_GET_STATE		0x0280
+#define RH_GET_INTERFACE	0x0A80
+#define RH_SET_INTERFACE	0x0B00
+#define RH_SYNC_FRAME		0x0C80
+/* Our Vendor Specific Request */
+#define RH_SET_EP		0x2000
+
+/* Hub port features */
+#define RH_PORT_CONNECTION	0x00
+#define RH_PORT_ENABLE		0x01
+#define RH_PORT_SUSPEND		0x02
+#define RH_PORT_OVER_CURRENT	0x03
+#define RH_PORT_RESET		0x04
+#define RH_PORT_POWER		0x08
+#define RH_PORT_LOW_SPEED	0x09
+
+#define RH_C_PORT_CONNECTION	0x10
+#define RH_C_PORT_ENABLE	0x11
+#define RH_C_PORT_SUSPEND	0x12
+#define RH_C_PORT_OVER_CURRENT	0x13
+#define RH_C_PORT_RESET		0x14
+
+/* Hub features */
+#define RH_C_HUB_LOCAL_POWER	0x00
+#define RH_C_HUB_OVER_CURRENT	0x01
+
+#define RH_DEVICE_REMOTE_WAKEUP	0x00
+#define RH_ENDPOINT_STALL	0x01
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+/* struct for each HC 
+ */
+
+#define MAX_TRANS	32
+
+typedef struct td {
+	struct urb *urb;
+	__u16 len;
+	__u16 iso_index;
+} td_t;
+
+typedef struct td_array {
+	int len;
+	td_t td[MAX_TRANS];
+} td_array_t;
+
+typedef struct hci {
+	struct virt_root_hub rh;	/* roothub */
+	wait_queue_head_t waitq;	/* deletion of URBs and devices needs a waitqueue */
+	int active;			/* HC is operating */
+
+	struct list_head ctrl_list;	/* set of ctrl endpoints */
+	struct list_head bulk_list;	/* set of bulk endpoints */
+	struct list_head iso_list;	/* set of isoc endpoints */
+	struct list_head intr_list;	/* ordered (tree) set of int endpoints */
+	struct list_head del_list;	/* set of entpoints to be deleted */
+
+	td_array_t *td_array;
+	td_array_t a_td_array;
+	td_array_t i_td_array[2];
+
+	struct list_head hci_hcd_list;	/* list of all hci_hcd */
+	struct usb_bus *bus;		/* our bus */
+
+//	int trans;			/* number of transactions pending */
+	int active_urbs;
+	int active_trans;
+	int frame_number;		/* frame number */
+	hcipriv_t hp;			/* individual part of hc type */
+	int nakCnt;
+	int last_packet_nak;
+
+} hci_t;
+
+/*-------------------------------------------------------------------------*/
+/* condition (error) CC codes and mapping OHCI like
+ */
+
+#define TD_CC_NOERROR		0x00
+#define TD_CC_CRC		0x01
+#define TD_CC_BITSTUFFING	0x02
+#define TD_CC_DATATOGGLEM	0x03
+#define TD_CC_STALL		0x04
+#define TD_DEVNOTRESP		0x05
+#define TD_PIDCHECKFAIL		0x06
+#define TD_UNEXPECTEDPID	0x07
+#define TD_DATAOVERRUN		0x08
+#define TD_DATAUNDERRUN		0x09
+#define TD_BUFFEROVERRUN	0x0C
+#define TD_BUFFERUNDERRUN	0x0D
+#define TD_NOTACCESSED		0x0F
+
+
+/* urb interface functions */
+static int hci_get_current_frame_number (struct usb_device *usb_dev);
+static int hci_unlink_urb (struct urb * urb);
+
+static int qu_queue_urb (hci_t * hci, struct urb * urb);
+
+/* root hub */
+static int rh_init_int_timer (struct urb * urb);
+static int rh_submit_urb (struct urb * urb);
+static int rh_unlink_urb (struct urb * urb);
+
+/* schedule functions */
+static int sh_add_packet (hci_t * hci, struct urb * urb);
+
+/* hc specific functions */
+static inline void hc_flush_data_cache (hci_t * hci, void *data, int len);
+static inline int hc_parse_trans (hci_t * hci, int *actbytes, __u8 * data,
+				  int *cc, int *toggle, int length, int pid,
+				  int urb_state);
+static inline int hc_add_trans (hci_t * hci, int len, void *data, int toggle,
+				int maxps, int slow, int endpoint, int address,
+				int pid, int format, int urb_state);
+
+static void hc_start_int (hci_t * hci);
+static void hc_stop_int (hci_t * hci);
+static void SL811Write (hci_t * hci, char offset, char data);
+
+/* debug| print the main components of an URB     
+ * small: 0) header + data packets 1) just header */
+
+static void urb_print (struct urb * urb, char *str, int small)
+{
+	unsigned int pipe = urb->pipe;
+	int i, len;
+
+	if (!urb->dev || !urb->dev->bus) {
+		dbg ("%s URB: no dev", str);
+		return;
+	}
+
+	printk ("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,flags:%4x,len:%d/%d,stat:%d(%x)\n",
+		str, hci_get_current_frame_number (urb->dev),
+		usb_pipedevice (pipe), usb_pipeendpoint (pipe),
+		usb_pipeout (pipe) ? 'O' : 'I',
+		usb_pipetype (pipe) < 2 ? (usb_pipeint (pipe) ? "INTR" : "ISOC")
+		: (usb_pipecontrol (pipe) ? "CTRL" : "BULK"), urb->transfer_flags,
+		urb->actual_length, urb->transfer_buffer_length, urb->status,
+		urb->status);
+	if (!small) {
+		if (usb_pipecontrol (pipe)) {
+			printk (__FILE__ ": cmd(8):");
+			for (i = 0; i < 8; i++)
+				printk (" %02x", ((__u8 *) urb->setup_packet)[i]);
+			printk ("\n");
+		}
+		if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) {
+			printk (__FILE__ ": data(%d/%d):", urb->actual_length,
+				urb->transfer_buffer_length);
+			len = usb_pipeout (pipe) ? urb-> transfer_buffer_length : urb->actual_length;
+			for (i = 0; i < 2096 && i < len; i++)
+				printk (" %02x", ((__u8 *) urb->transfer_buffer)[i]);
+			printk ("%s stat:%d\n", i < len ? "..." : "",
+				urb->status);
+		}
+	}
+}