From aa33609d289c4ee07ec10e4825bc055492fa107c Mon Sep 17 00:00:00 2001 From: Yunzhi Li Date: Fri, 19 Jun 2015 17:09:04 +0800 Subject: libpayload: usb: dwc2: support interrupt transfer dwc2 host core do not have a periodic schedule list, so try to send an interrupt packet in poll_intr_queue() function and use frame number read from usb core register to calculate time and schedule transfers. BUG=None TEST=Tested on RK3288 with two USB keyboards(connect to SoC without USB hub), both work correctly. BRANCH=None Change-Id: I16f7977c45a84b37c32b7c495ca78ad76be9f0ce Signed-off-by: Patrick Georgi Original-Commit-Id: 3d0206b86634bcfdbe03da3e2c8adf186470e157 Original-Change-Id: Ie54699162ef799f4d3d2a0abf850dbeb62417777 Original-Signed-off-by: Yunzhi Li Original-Reviewed-on: https://chromium-review.googlesource.com/280750 Original-Reviewed-by: Julius Werner Original-Commit-Queue: Lin Huang Original-Tested-by: Lin Huang Reviewed-on: http://review.coreboot.org/10774 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- payloads/libpayload/include/usb/dwc2_registers.h | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'payloads/libpayload/include/usb/dwc2_registers.h') diff --git a/payloads/libpayload/include/usb/dwc2_registers.h b/payloads/libpayload/include/usb/dwc2_registers.h index b6ae2ed7ad..0e46985d4b 100644 --- a/payloads/libpayload/include/usb/dwc2_registers.h +++ b/payloads/libpayload/include/usb/dwc2_registers.h @@ -364,10 +364,10 @@ typedef union { uint32_t d32; /* register bits */ struct { - unsigned nptxfstaddr:16; - unsigned nptxfdep:16; + unsigned txfstaddr:16; + unsigned txfdep:16; }; -} gnptxfsiz_t; +} gtxfsiz_t; /** * This union represents the bit fields of the Core Receive FIFO Size @@ -511,6 +511,23 @@ typedef union { }; } hcfg_t; +/** + * This union represents the bit fields in the Host Frame Number/Frame Time + * Remaining Register + */ +typedef union { + /* raw register data */ + uint32_t d32; + + /* register bits */ + struct { + /** Frame Number */ + unsigned frnum:16; + /** Frame Time Remaining */ + unsigned frrem:16; + }; +} hfnum_t; + /** * This union represents the bit fields in the Host Port Control and status * Register. -- cgit v1.2.3