diff options
Diffstat (limited to 'common/usbx_host_controllers/src/ux_hcd_ehci_initialize.c')
| -rw-r--r-- | common/usbx_host_controllers/src/ux_hcd_ehci_initialize.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/common/usbx_host_controllers/src/ux_hcd_ehci_initialize.c b/common/usbx_host_controllers/src/ux_hcd_ehci_initialize.c index 49a1a6f..347bc09 100644 --- a/common/usbx_host_controllers/src/ux_hcd_ehci_initialize.c +++ b/common/usbx_host_controllers/src/ux_hcd_ehci_initialize.c @@ -60,7 +60,7 @@ /* FUNCTION RELEASE */ /* */ /* _ux_hcd_ehci_initialize PORTABLE C */ -/* 6.0 */ +/* 6.1 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ @@ -104,6 +104,10 @@ /* DATE NAME DESCRIPTION */ /* */ /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */ +/* 09-30-2020 Chaoqiong Xiao Modified comment(s), */ +/* optimized based on compile */ +/* definitions, */ +/* resulting in version 6.1 */ /* */ /**************************************************************************/ UINT _ux_hcd_ehci_initialize(UX_HCD *hcd) @@ -120,9 +124,11 @@ UINT status = UX_SUCCESS; /* The controller initialized here is of EHCI type. */ hcd -> ux_hcd_controller_type = UX_EHCI_CONTROLLER; +#if UX_MAX_DEVICES > 1 /* Initialize the max bandwidth for periodic endpoints. On EHCI, the spec says no more than 90% to be allocated for periodic. */ hcd -> ux_hcd_available_bandwidth = UX_EHCI_AVAILABLE_BANDWIDTH; +#endif /* Allocate memory for this EHCI HCD instance. */ hcd_ehci = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, sizeof(UX_HCD_EHCI)); @@ -241,8 +247,11 @@ UINT status = UX_SUCCESS; if (status == UX_SUCCESS) { +#if UX_MAX_DEVICES > 1 + /* Since this is a USB 2.0 controller, we can safely hardwire the version. */ hcd -> ux_hcd_version = 0x200; +#endif /* The EHCI Controller should not be running. */ ehci_register = _ux_hcd_ehci_register_read(hcd_ehci, EHCI_HCOR_USB_COMMAND); @@ -305,7 +314,9 @@ UINT status = UX_SUCCESS; local ehci container. */ ehci_register = _ux_hcd_ehci_register_read(hcd_ehci, EHCI_HCCR_HCS_PARAMS); hcd -> ux_hcd_nb_root_hubs = (UINT) (ehci_register & 0xf); - hcd_ehci -> ux_hcd_ehci_nb_root_hubs = (UINT) (ehci_register & 0xf); + if (hcd -> ux_hcd_nb_root_hubs > UX_MAX_ROOTHUB_PORT) + hcd -> ux_hcd_nb_root_hubs = UX_MAX_ROOTHUB_PORT; + hcd_ehci -> ux_hcd_ehci_nb_root_hubs = hcd -> ux_hcd_nb_root_hubs; /* The controller transceiver can now send the device connection/extraction signals to the EHCI controller. */ |