[U-Boot] [RFC USB PATCH 1/3 V3] Prepare USB layer for ehci support
Remy Bohmer
linux at bohmer.net
Wed Dec 10 16:51:17 CET 2008
Hello Michael,
I already have those patches (V2) in the u-boot-usb tree, next branch.
Can you please rebase these patches on top of that tree, or at least
describe what you changed?
Kind Regards,
Remy
2008/12/10 Michael Trimarchi <trimarchi at gandalf.sssup.it>:
> 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
>
>
More information about the U-Boot
mailing list