xHCI: Adding #define values used for hub descriptor
xhci-hub used some numerical values for initialisation of root hub
descriptors. #define values are addded in usb 2.0 hub specification
file and these values are used for root hub characteristics
initialisation.
Also use some #defines in places where magic numbers are being used.
Signed-off-by: Aman Deep <amandeep3986@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 430e88f..35e257f 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -57,17 +57,15 @@
desc->bHubContrCurrent = 0;
desc->bNbrPorts = ports;
- /* Ugh, these should be #defines, FIXME */
- /* Using table 11-13 in USB 2.0 spec. */
temp = 0;
- /* Bits 1:0 - support port power switching, or power always on */
+ /* Bits 1:0 - support per-port power switching, or power always on */
if (HCC_PPC(xhci->hcc_params))
- temp |= 0x0001;
+ temp |= HUB_CHAR_INDV_PORT_LPSM;
else
- temp |= 0x0002;
+ temp |= HUB_CHAR_NO_LPSM;
/* Bit 2 - root hubs are not part of a compound device */
/* Bits 4:3 - individual port over current protection */
- temp |= 0x0008;
+ temp |= HUB_CHAR_INDV_PORT_OCPM;
/* Bits 6:5 - no TTs in root ports */
/* Bit 7 - no port indicators */
desc->wHubCharacteristics = cpu_to_le16(temp);
@@ -86,9 +84,9 @@
ports = xhci->num_usb2_ports;
xhci_common_hub_descriptor(xhci, desc, ports);
- desc->bDescriptorType = 0x29;
+ desc->bDescriptorType = USB_DT_HUB;
temp = 1 + (ports / 8);
- desc->bDescLength = 7 + 2 * temp;
+ desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * temp;
/* The Device Removable bits are reported on a byte granularity.
* If the port doesn't exist within that byte, the bit is set to 0.
@@ -137,8 +135,8 @@
ports = xhci->num_usb3_ports;
xhci_common_hub_descriptor(xhci, desc, ports);
- desc->bDescriptorType = 0x2a;
- desc->bDescLength = 12;
+ desc->bDescriptorType = USB_DT_SS_HUB;
+ desc->bDescLength = USB_DT_SS_HUB_SIZE;
/* header decode latency should be zero for roothubs,
* see section 4.23.5.2.