From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=56081 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pcyl2-00069O-Ll for qemu-devel@nongnu.org; Wed, 12 Jan 2011 06:20:54 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Pcyl0-0001a4-A4 for qemu-devel@nongnu.org; Wed, 12 Jan 2011 06:20:51 -0500 Received: from mx1.redhat.com ([209.132.183.28]:3366) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Pcyl0-0001Zl-36 for qemu-devel@nongnu.org; Wed, 12 Jan 2011 06:20:50 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id p0CBKnrN014405 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 12 Jan 2011 06:20:49 -0500 From: Gerd Hoffmann Date: Wed, 12 Jan 2011 12:20:00 +0100 Message-Id: <1294831214-4499-19-git-send-email-kraxel@redhat.com> In-Reply-To: <1294831214-4499-1-git-send-email-kraxel@redhat.com> References: <1294831214-4499-1-git-send-email-kraxel@redhat.com> Subject: [Qemu-devel] [PATCH v4 18/32] usb: uhci: remote wakeup support. List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gerd Hoffmann Add support for remote wakeup to the UHCI adapter. Signed-off-by: Gerd Hoffmann --- hw/usb-uhci.c | 23 +++++++++++++++++++++-- 1 files changed, 21 insertions(+), 2 deletions(-) diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c index 5e2e34a..2d2a9e7 100644 --- a/hw/usb-uhci.c +++ b/hw/usb-uhci.c @@ -57,13 +57,18 @@ #define TD_CTRL_NAK (1 << 19) #define TD_CTRL_TIMEOUT (1 << 18) +#define UHCI_PORT_SUSPEND (1 << 12) #define UHCI_PORT_RESET (1 << 9) #define UHCI_PORT_LSDA (1 << 8) +#define UHCI_PORT_RD (1 << 6) #define UHCI_PORT_ENC (1 << 3) #define UHCI_PORT_EN (1 << 2) #define UHCI_PORT_CSC (1 << 1) #define UHCI_PORT_CCS (1 << 0) +#define UHCI_PORT_READ_ONLY (0x1bb) +#define UHCI_PORT_WRITE_CLEAR (UHCI_PORT_CSC | UHCI_PORT_ENC) + #define FRAME_TIMER_FREQ 1000 #define FRAME_MAX_LOOPS 100 @@ -497,9 +502,10 @@ static void uhci_ioport_writew(void *opaque, uint32_t addr, uint32_t val) usb_send_msg(dev, USB_MSG_RESET); } } - port->ctrl = (port->ctrl & 0x01fb) | (val & ~0x01fb); + port->ctrl &= UHCI_PORT_READ_ONLY; + port->ctrl |= (val & ~UHCI_PORT_READ_ONLY); /* some bits are reset when a '1' is written to them */ - port->ctrl &= ~(val & 0x000a); + port->ctrl &= ~(val & UHCI_PORT_WRITE_CLEAR); } break; } @@ -629,6 +635,18 @@ static void uhci_detach(USBPort *port1) uhci_resume(s); } +static void uhci_wakeup(USBDevice *dev) +{ + USBBus *bus = usb_bus_from_device(dev); + UHCIState *s = container_of(bus, UHCIState, bus); + UHCIPort *port = s->ports + dev->port->index; + + if (port->ctrl & UHCI_PORT_SUSPEND && !(port->ctrl & UHCI_PORT_RD)) { + port->ctrl |= UHCI_PORT_RD; + uhci_resume(s); + } +} + static int uhci_broadcast_packet(UHCIState *s, USBPacket *p) { int i, ret; @@ -1094,6 +1112,7 @@ static void uhci_map(PCIDevice *pci_dev, int region_num, static USBPortOps uhci_port_ops = { .attach = uhci_attach, .detach = uhci_detach, + .wakeup = uhci_wakeup, }; static int usb_uhci_common_initfn(UHCIState *s) -- 1.7.1