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Commit 67f70fc6 authored by Aaro Koskinen's avatar Aaro Koskinen Committed by Greg Kroah-Hartman
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staging: octeon-usb: cvmx-usb: delete redundant example code 

Delete redundant example code found in comments. It's already there in
the driver proper.
Signed-off-by: default avatarAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a7c67948
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Showing with 1 addition and 208 deletions
drivers/staging/octeon-usb/cvmx-usb.h
View file @ 67f70fc6
......@@ -217,214 +217,7 @@
* messages similar to the usb 2.0 spec for hub control and
* status. For these systems it may be necessary to write
* function to decode standard usb control messages into
* equivalent cvmx-usb API calls. As an example, the following
* code is used under Linux for some of the basic hub control
* messages.
*
* @code
* static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength)
* {
* cvmx_usb_state_t *usb = (cvmx_usb_state_t *)hcd->hcd_priv;
* cvmx_usb_port_status_t usb_port_status;
* int port_status;
* struct usb_hub_descriptor *desc;
* unsigned long flags;
*
* switch (typeReq)
* {
* case ClearHubFeature:
* DEBUG_ROOT_HUB("OcteonUSB: ClearHubFeature\n");
* switch (wValue)
* {
* case C_HUB_LOCAL_POWER:
* case C_HUB_OVER_CURRENT:
* // Nothing required here
* break;
* default:
* return -EINVAL;
* }
* break;
* case ClearPortFeature:
* DEBUG_ROOT_HUB("OcteonUSB: ClearPortFeature");
* if (wIndex != 1)
* {
* DEBUG_ROOT_HUB(" INVALID\n");
* return -EINVAL;
* }
*
* switch (wValue)
* {
* case USB_PORT_FEAT_ENABLE:
* DEBUG_ROOT_HUB(" ENABLE");
* local_irq_save(flags);
* cvmx_usb_disable(usb);
* local_irq_restore(flags);
* break;
* case USB_PORT_FEAT_SUSPEND:
* DEBUG_ROOT_HUB(" SUSPEND");
* // Not supported on Octeon
* break;
* case USB_PORT_FEAT_POWER:
* DEBUG_ROOT_HUB(" POWER");
* // Not supported on Octeon
* break;
* case USB_PORT_FEAT_INDICATOR:
* DEBUG_ROOT_HUB(" INDICATOR");
* // Port inidicator not supported
* break;
* case USB_PORT_FEAT_C_CONNECTION:
* DEBUG_ROOT_HUB(" C_CONNECTION");
* // Clears drivers internal connect status change flag
* cvmx_usb_set_status(usb, cvmx_usb_get_status(usb));
* break;
* case USB_PORT_FEAT_C_RESET:
* DEBUG_ROOT_HUB(" C_RESET");
* // Clears the driver's internal Port Reset Change flag
* cvmx_usb_set_status(usb, cvmx_usb_get_status(usb));
* break;
* case USB_PORT_FEAT_C_ENABLE:
* DEBUG_ROOT_HUB(" C_ENABLE");
* // Clears the driver's internal Port Enable/Disable Change flag
* cvmx_usb_set_status(usb, cvmx_usb_get_status(usb));
* break;
* case USB_PORT_FEAT_C_SUSPEND:
* DEBUG_ROOT_HUB(" C_SUSPEND");
* // Clears the driver's internal Port Suspend Change flag,
* which is set when resume signaling on the host port is
* complete
* break;
* case USB_PORT_FEAT_C_OVER_CURRENT:
* DEBUG_ROOT_HUB(" C_OVER_CURRENT");
* // Clears the driver's overcurrent Change flag
* cvmx_usb_set_status(usb, cvmx_usb_get_status(usb));
* break;
* default:
* DEBUG_ROOT_HUB(" UNKNOWN\n");
* return -EINVAL;
* }
* DEBUG_ROOT_HUB("\n");
* break;
* case GetHubDescriptor:
* DEBUG_ROOT_HUB("OcteonUSB: GetHubDescriptor\n");
* desc = (struct usb_hub_descriptor *)buf;
* desc->bDescLength = 9;
* desc->bDescriptorType = 0x29;
* desc->bNbrPorts = 1;
* desc->wHubCharacteristics = 0x08;
* desc->bPwrOn2PwrGood = 1;
* desc->bHubContrCurrent = 0;
* desc->bitmap[0] = 0;
* desc->bitmap[1] = 0xff;
* break;
* case GetHubStatus:
* DEBUG_ROOT_HUB("OcteonUSB: GetHubStatus\n");
* *(__le32 *)buf = 0;
* break;
* case GetPortStatus:
* DEBUG_ROOT_HUB("OcteonUSB: GetPortStatus");
* if (wIndex != 1)
* {
* DEBUG_ROOT_HUB(" INVALID\n");
* return -EINVAL;
* }
*
* usb_port_status = cvmx_usb_get_status(usb);
* port_status = 0;
*
* if (usb_port_status.connect_change)
* {
* port_status |= (1 << USB_PORT_FEAT_C_CONNECTION);
* DEBUG_ROOT_HUB(" C_CONNECTION");
* }
*
* if (usb_port_status.port_enabled)
* {
* port_status |= (1 << USB_PORT_FEAT_C_ENABLE);
* DEBUG_ROOT_HUB(" C_ENABLE");
* }
*
* if (usb_port_status.connected)
* {
* port_status |= (1 << USB_PORT_FEAT_CONNECTION);
* DEBUG_ROOT_HUB(" CONNECTION");
* }
*
* if (usb_port_status.port_enabled)
* {
* port_status |= (1 << USB_PORT_FEAT_ENABLE);
* DEBUG_ROOT_HUB(" ENABLE");
* }
*
* if (usb_port_status.port_over_current)
* {
* port_status |= (1 << USB_PORT_FEAT_OVER_CURRENT);
* DEBUG_ROOT_HUB(" OVER_CURRENT");
* }
*
* if (usb_port_status.port_powered)
* {
* port_status |= (1 << USB_PORT_FEAT_POWER);
* DEBUG_ROOT_HUB(" POWER");
* }
*
* if (usb_port_status.port_speed == CVMX_USB_SPEED_HIGH)
* {
* port_status |= (1 << USB_PORT_FEAT_HIGHSPEED);
* DEBUG_ROOT_HUB(" HIGHSPEED");
* }
* else if (usb_port_status.port_speed == CVMX_USB_SPEED_LOW)
* {
* port_status |= (1 << USB_PORT_FEAT_LOWSPEED);
* DEBUG_ROOT_HUB(" LOWSPEED");
* }
*
* *((__le32 *)buf) = cpu_to_le32(port_status);
* DEBUG_ROOT_HUB("\n");
* break;
* case SetHubFeature:
* DEBUG_ROOT_HUB("OcteonUSB: SetHubFeature\n");
* // No HUB features supported
* break;
* case SetPortFeature:
* DEBUG_ROOT_HUB("OcteonUSB: SetPortFeature");
* if (wIndex != 1)
* {
* DEBUG_ROOT_HUB(" INVALID\n");
* return -EINVAL;
* }
*
* switch (wValue)
* {
* case USB_PORT_FEAT_SUSPEND:
* DEBUG_ROOT_HUB(" SUSPEND\n");
* return -EINVAL;
* case USB_PORT_FEAT_POWER:
* DEBUG_ROOT_HUB(" POWER\n");
* return -EINVAL;
* case USB_PORT_FEAT_RESET:
* DEBUG_ROOT_HUB(" RESET\n");
* local_irq_save(flags);
* cvmx_usb_disable(usb);
* if (cvmx_usb_enable(usb))
* DEBUG_ERROR("Failed to enable the port\n");
* local_irq_restore(flags);
* return 0;
* case USB_PORT_FEAT_INDICATOR:
* DEBUG_ROOT_HUB(" INDICATOR\n");
* // Not supported
* break;
* default:
* DEBUG_ROOT_HUB(" UNKNOWN\n");
* return -EINVAL;
* }
* break;
* default:
* DEBUG_ROOT_HUB("OcteonUSB: Unknown root hub request\n");
* return -EINVAL;
* }
* return 0;
* }
* @endcode
* equivalent cvmx-usb API calls.
*
* <h2>Interrupts</h2>
*
......
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