diff options
| author | Yunzhi Li <lyz@rock-chips.com> | 2015-07-02 15:28:11 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-07-16 22:39:59 +0200 |
| commit | ebd3da7dba7d72b0d7a4fa50ffbad61259562447 (patch) | |
| tree | 715a8a4873f22173fad0c73cbf311d3ca1081a96 /payloads/libpayload/include/usb | |
| parent | ae3d71a4d10b28bb5da1b3399358988acdcf1ace (diff) | |
libpayload: usb: dwc2: support split transaction
With split transaction, dwc2 host controller can handle full- and
low-speed devices on hub in high-speed mode. This commit adds support
for split control and interrupt transfers
BUG=None
TEST=Connect usb keyboard through hub, usb keyboard can work
BRANCH=None
Change-Id: If7a00db21c8ad4c635f39581382b877603075d1a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 4fb514b7f7f7e414fa94bfce05420957b1c57019
Original-Change-Id: I07e64064c6182d33905ae4efb13712645de7cf93
Original-Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/283282
Original-Tested-by: Lin Huang <hl@rock-chips.com>
Original-Commit-Queue: Lin Huang <hl@rock-chips.com>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/10956
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'payloads/libpayload/include/usb')
| -rw-r--r-- | payloads/libpayload/include/usb/dwc2_registers.h | 24 | ||||
| -rw-r--r-- | payloads/libpayload/include/usb/usb.h | 2 |
2 files changed, 26 insertions, 0 deletions
diff --git a/payloads/libpayload/include/usb/dwc2_registers.h b/payloads/libpayload/include/usb/dwc2_registers.h index 0e46985d4b..b44a5ac2f7 100644 --- a/payloads/libpayload/include/usb/dwc2_registers.h +++ b/payloads/libpayload/include/usb/dwc2_registers.h @@ -597,6 +597,30 @@ typedef union { }; } hcchar_t; +/** + * This union represents the bit fields in the Host Channel-n Split Control + * Register. + */ +typedef union { + /* raw register data */ + uint32_t d32; + + /* register bits */ + struct { + /** Port Address */ + unsigned prtaddr:7; + /** Hub Address */ + unsigned hubaddr:7; + /** Transaction Position */ + unsigned xactpos:2; + /** Do Complete Split */ + unsigned compsplt:1; + unsigned reserved:14; + /** Split Enable */ + unsigned spltena:1; + }; +} hcsplit_t; + typedef enum { EPDIR_OUT = 0, EPDIR_IN, diff --git a/payloads/libpayload/include/usb/usb.h b/payloads/libpayload/include/usb/usb.h index df507db6ea..cf52a4aece 100644 --- a/payloads/libpayload/include/usb/usb.h +++ b/payloads/libpayload/include/usb/usb.h @@ -277,6 +277,8 @@ void usb_hid_init (usbdev_t *dev); void usb_msc_init (usbdev_t *dev); void usb_generic_init (usbdev_t *dev); +int closest_usb2_hub(const usbdev_t *dev, int *const addr, int *const port); + static inline unsigned char gen_bmRequestType (dev_req_dir dir, dev_req_type type, dev_req_recp recp) { |