diff options
author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2018-12-07 16:19:32 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-07 15:40:41 +0100 |
commit | 5f78a54f8d31e86aedd50f5b4d148dfeabafe88a (patch) | |
tree | ec9d64ce792505670456183995bc4099ebacee63 /drivers/usb/host | |
parent | 1c2d81cc287c59161b19c5810f0091fe33448e07 (diff) | |
download | linux-5f78a54f8d31e86aedd50f5b4d148dfeabafe88a.tar.bz2 |
xhci: move usb3 speficic bits to own function in get_port_status call
refactoring, no functional changes
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r-- | drivers/usb/host/xhci-hub.c | 68 |
1 files changed, 40 insertions, 28 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 5dba0a40acad..60aeff3e154b 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -818,6 +818,41 @@ static u32 xhci_get_ext_port_status(u32 raw_port_status, u32 port_li) return ext_stat; } +static void xhci_get_usb3_port_status(struct xhci_port *port, u32 *status, + u32 portsc) +{ + struct xhci_hcd *xhci; + u32 link_state; + u32 portnum; + + xhci = hcd_to_xhci(port->rhub->hcd); + link_state = portsc & PORT_PLS_MASK; + portnum = port->hcd_portnum; + + /* USB3 specific wPortChange bits + * + * Port link change with port in resume state should not be + * reported to usbcore, as this is an internal state to be + * handled by xhci driver. Reporting PLC to usbcore may + * cause usbcore clearing PLC first and port change event + * irq won't be generated. + */ + + if (portsc & PORT_PLC && (link_state != XDEV_RESUME)) + *status |= USB_PORT_STAT_C_LINK_STATE << 16; + if (portsc & PORT_WRC) + *status |= USB_PORT_STAT_C_BH_RESET << 16; + if (portsc & PORT_CEC) + *status |= USB_PORT_STAT_C_CONFIG_ERROR << 16; + + /* USB3 specific wPortStatus bits */ + if (portsc & PORT_POWER) + *status |= USB_SS_PORT_STAT_POWER; + + xhci_hub_report_usb3_link_state(xhci, status, portsc); + xhci_del_comp_mod_timer(xhci, portsc, portnum); +} + /* * Converts a raw xHCI port status into the format that external USB 2.0 or USB * 3.0 hubs use. @@ -854,22 +889,8 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd, if ((raw_port_status & PORT_RC)) status |= USB_PORT_STAT_C_RESET << 16; /* USB3.0 only */ - if (hcd->speed >= HCD_USB3) { - /* Port link change with port in resume state should not be - * reported to usbcore, as this is an internal state to be - * handled by xhci driver. Reporting PLC to usbcore may - * cause usbcore clearing PLC first and port change event - * irq won't be generated. - */ - if ((raw_port_status & PORT_PLC) && - (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME) - status |= USB_PORT_STAT_C_LINK_STATE << 16; - if ((raw_port_status & PORT_WRC)) - status |= USB_PORT_STAT_C_BH_RESET << 16; - if ((raw_port_status & PORT_CEC)) - status |= USB_PORT_STAT_C_CONFIG_ERROR << 16; - } - + if (hcd->speed >= HCD_USB3) + xhci_get_usb3_port_status(port, &status, raw_port_status); if (hcd->speed < HCD_USB3) { if ((raw_port_status & PORT_PLS_MASK) == XDEV_U3 && (raw_port_status & PORT_POWER)) @@ -989,22 +1010,13 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd, if (raw_port_status & PORT_RESET) status |= USB_PORT_STAT_RESET; if (raw_port_status & PORT_POWER) { - if (hcd->speed >= HCD_USB3) - status |= USB_SS_PORT_STAT_POWER; - else + if (hcd->speed < HCD_USB3) status |= USB_PORT_STAT_POWER; } /* Update Port Link State */ - if (hcd->speed >= HCD_USB3) { - xhci_hub_report_usb3_link_state(xhci, &status, raw_port_status); - /* - * Verify if all USB3 Ports Have entered U0 already. - * Delete Compliance Mode Timer if so. - */ - xhci_del_comp_mod_timer(xhci, raw_port_status, wIndex); - } else { + if (hcd->speed < HCD_USB3) xhci_hub_report_usb2_link_state(&status, raw_port_status); - } + if (bus_state->port_c_suspend & (1 << wIndex)) status |= USB_PORT_STAT_C_SUSPEND << 16; |