[U-Boot] [RFC USB PATCH 1/3 V3] Prepare USB layer for ehci support

[Michael Trimarchi]

Prepare USB layer for support ehci

Signed-off-by: Michael Trimarchi <trimarchimichael at yahoo.it>

---
 common/cmd_usb.c   |    2 +-
 common/usb.c       |    2 +-
 include/usb.h      |   19 +++++++++++--------
 include/usb_defs.h |   10 ++++++++++
 4 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index 8b19240..9e55c7c 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -310,7 +310,7 @@ void usb_show_tree_graph(struct usb_device *dev, char *pre)
 	pre[index] = 0;
 	printf(" %s (%s, %dmA)\n", usb_get_class_desc(
 					dev->config.if_desc[0].bInterfaceClass),
-					dev->slow ? "1.5MBit/s" : "12MBit/s",
+					dev->speed ? "1.5MBit/s" : "12MBit/s",
 					dev->config.MaxPower * 2);
 	if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
 		printf(" %s  %s %s %s\n", pre, dev->mf, dev->prod, dev->serial);
diff --git a/common/usb.c b/common/usb.c
index ee18152..3138452 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -1136,7 +1136,7 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port)
 
 	/* Allocate a new device struct for it */
 	usb = usb_alloc_new_device();
-	usb->slow = (portstatus & USB_PORT_STAT_LOW_SPEED) ? 1 : 0;
+	usb->speed = (portstatus & USB_PORT_STAT_LOW_SPEED) ? 1 : 0;
 
 	dev->children[port] = usb;
 	usb->parent = dev;
diff --git a/include/usb.h b/include/usb.h
index 84a77b2..b85afec 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -138,7 +138,7 @@ enum {
 
 struct usb_device {
 	int	devnum;			/* Device number on USB bus */
-	int	slow;			/* Slow device? */
+	int	speed;			/* full/low/high */
 	char	mf[32];			/* manufacturer */
 	char	prod[32];		/* product */
 	char	serial[32];		/* serial number */
@@ -171,6 +171,7 @@ struct usb_device {
 	unsigned long status;
 	int act_len;			/* transfered bytes */
 	int maxchild;			/* Number of ports if hub */
+	int portnr;
 	struct usb_device *parent;
 	struct usb_device *children[USB_MAXCHILDREN];
 };
@@ -180,8 +181,9 @@ struct usb_device {
  */
 
 #if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || \
-	defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_SL811HS) || \
-	defined(CONFIG_USB_ISP116X_HCD) || defined(CONFIG_USB_R8A66597_HCD)
+	defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_OHCI_NEW) || \
+	defined(CONFIG_USB_SL811HS) || defined(CONFIG_USB_ISP116X_HCD) || \
+	defined(CONFIG_USB_R8A66597_HCD)
 
 int usb_lowlevel_init(void);
 int usb_lowlevel_stop(void);
@@ -279,7 +281,7 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate);
  *  - endpoint number (4 bits)
  *  - current Data0/1 state (1 bit)
  *  - direction (1 bit)
- *  - speed (1 bit)
+ *  - speed (2 bits)
  *  - max packet size (2 bits: 8, 16, 32 or 64)
  *  - pipe type (2 bits: control, interrupt, bulk, isochronous)
  *
@@ -296,7 +298,7 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate);
  *  - device:		bits 8-14
  *  - endpoint:		bits 15-18
  *  - Data0/1:		bit 19
- *  - speed:		bit 26		(0 = Full, 1 = Low Speed)
+ *  - speed:		bit 26		(0 = Full, 1 = Low Speed, 2 = High)
  *  - pipe type:	bits 30-31	(00 = isochronous, 01 = interrupt,
  *					 10 = control, 11 = bulk)
  *
@@ -308,8 +310,8 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate);
 /* Create various pipes... */
 #define create_pipe(dev,endpoint) \
 		(((dev)->devnum << 8) | (endpoint << 15) | \
-		((dev)->slow << 26) | (dev)->maxpacketsize)
-#define default_pipe(dev) ((dev)->slow << 26)
+		((dev)->speed << 26) | (dev)->maxpacketsize)
+#define default_pipe(dev) ((dev)->speed << 26)
 
 #define usb_sndctrlpipe(dev, endpoint)	((PIPE_CONTROL << 30) | \
 					 create_pipe(dev, endpoint))
@@ -359,7 +361,8 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate);
 #define usb_pipe_endpdev(pipe)	(((pipe) >> 8) & 0x7ff)
 #define usb_pipeendpoint(pipe)	(((pipe) >> 15) & 0xf)
 #define usb_pipedata(pipe)	(((pipe) >> 19) & 1)
-#define usb_pipeslow(pipe)	(((pipe) >> 26) & 1)
+#define usb_pipespeed(pipe)	(((pipe) >> 26) & 3)
+#define usb_pipeslow(pipe)	(usb_pipespeed(pipe) == USB_SPEED_LOW)
 #define usb_pipetype(pipe)	(((pipe) >> 30) & 3)
 #define usb_pipeisoc(pipe)	(usb_pipetype((pipe)) == PIPE_ISOCHRONOUS)
 #define usb_pipeint(pipe)	(usb_pipetype((pipe)) == PIPE_INTERRUPT)
diff --git a/include/usb_defs.h b/include/usb_defs.h
index 353019f..8032e57 100644
--- a/include/usb_defs.h
+++ b/include/usb_defs.h
@@ -80,6 +80,12 @@
 #define USB_DIR_OUT           0
 #define USB_DIR_IN            0x80
 
+/* USB device speeds */
+#define USB_SPEED_FULL		0x0	/* 12Mbps */
+#define USB_SPEED_LOW		0x1	/* 1.5Mbps */
+#define USB_SPEED_HIGH		0x2	/* 480Mbps */
+#define USB_SPEED_RESERVED	0x3
+
 /* Descriptor types */
 #define USB_DT_DEVICE        0x01
 #define USB_DT_CONFIG        0x02
@@ -202,6 +208,7 @@
 #define USB_PORT_FEAT_RESET          4
 #define USB_PORT_FEAT_POWER          8
 #define USB_PORT_FEAT_LOWSPEED       9
+#define USB_PORT_FEAT_HIGHSPEED      10
 #define USB_PORT_FEAT_C_CONNECTION   16
 #define USB_PORT_FEAT_C_ENABLE       17
 #define USB_PORT_FEAT_C_SUSPEND      18
@@ -216,6 +223,9 @@
 #define USB_PORT_STAT_RESET         0x0010
 #define USB_PORT_STAT_POWER         0x0100
 #define USB_PORT_STAT_LOW_SPEED     0x0200
+#define USB_PORT_STAT_HIGH_SPEED    0x0400	/* support for EHCI */
+#define USB_PORT_STAT_SPEED	\
+	(USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED)
 
 /* wPortChange bits */
 #define USB_PORT_STAT_C_CONNECTION  0x0001
-- 
1.5.6.5