diff options
| author | Julius Werner <jwerner@chromium.org> | 2013-02-28 18:08:40 +0000 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-05-05 23:54:21 +0200 |
| commit | 7d9aa8fd87171164a6f14167a0c9c066f4312b8d (patch) | |
| tree | bbb334c7825cec5fcf1b69118d9d43775ba61302 /drivers | |
| parent | b068deb363e34a72754877d3d8c7a71a5bc834db (diff) | |
| download | talos-obmc-uboot-7d9aa8fd87171164a6f14167a0c9c066f4312b8d.tar.gz talos-obmc-uboot-7d9aa8fd87171164a6f14167a0c9c066f4312b8d.zip | |
usb: Add new command to set USB 2.0 port test modes
This patch adds a new 'usb test' command, that will set a port to a USB
2.0 test mode (see USB 2.0 spec 7.1.20). It supports all five test modes
on both downstream hub ports and ordinary device's upstream ports. In
addition, it supports EHCI root hub ports.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 6a55cd244c..19d4352024 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -623,15 +623,14 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, int len, srclen; uint32_t reg; uint32_t *status_reg; + int port = le16_to_cpu(req->index) & 0xff; struct ehci_ctrl *ctrl = dev->controller; - if (le16_to_cpu(req->index) > CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) { - printf("The request port(%d) is not configured\n", - le16_to_cpu(req->index) - 1); + if (port > CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) { + printf("The request port(%d) is not configured\n", port - 1); return -1; } - status_reg = (uint32_t *)&ctrl->hcor->or_portsc[ - le16_to_cpu(req->index) - 1]; + status_reg = (uint32_t *)&ctrl->hcor->or_portsc[port - 1]; srclen = 0; debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u\n", @@ -748,7 +747,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, tmpbuf[2] |= USB_PORT_STAT_C_ENABLE; if (reg & EHCI_PS_OCC) tmpbuf[2] |= USB_PORT_STAT_C_OVERCURRENT; - if (ctrl->portreset & (1 << le16_to_cpu(req->index))) + if (ctrl->portreset & (1 << port)) tmpbuf[2] |= USB_PORT_STAT_C_RESET; srcptr = tmpbuf; @@ -774,7 +773,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, EHCI_PS_IS_LOWSPEED(reg)) { /* Low speed device, give up ownership. */ debug("port %d low speed --> companion\n", - req->index - 1); + port - 1); reg |= EHCI_PS_PO; ehci_writel(status_reg, reg); break; @@ -800,13 +799,17 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, ret = handshake(status_reg, EHCI_PS_PR, 0, 2 * 1000); if (!ret) - ctrl->portreset |= - 1 << le16_to_cpu(req->index); + ctrl->portreset |= 1 << port; else printf("port(%d) reset error\n", - le16_to_cpu(req->index) - 1); + port - 1); } break; + case USB_PORT_FEAT_TEST: + reg &= ~(0xf << 16); + reg |= ((le16_to_cpu(req->index) >> 8) & 0xf) << 16; + ehci_writel(status_reg, reg); + break; default: debug("unknown feature %x\n", le16_to_cpu(req->value)); goto unknown; @@ -833,7 +836,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_OCC; break; case USB_PORT_FEAT_C_RESET: - ctrl->portreset &= ~(1 << le16_to_cpu(req->index)); + ctrl->portreset &= ~(1 << port); break; default: debug("unknown feature %x\n", le16_to_cpu(req->value)); |
