From patchwork Fri Mar 1 04:08:40 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julius Werner X-Patchwork-Id: 224245 X-Patchwork-Delegate: marek.vasut@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 0EAA82C02A1 for ; Fri, 1 Mar 2013 18:43:20 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id BFF0E4A051; Fri, 1 Mar 2013 08:43:14 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xzUArN6fZuf8; Fri, 1 Mar 2013 08:43:14 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 26A8E4A058; Fri, 1 Mar 2013 08:42:55 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 281EC4A04A for ; Fri, 1 Mar 2013 05:08:55 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2tbjKwT0hRKD for ; Fri, 1 Mar 2013 05:08:54 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-da0-f41.google.com (mail-da0-f41.google.com [209.85.210.41]) by theia.denx.de (Postfix) with ESMTPS id 824E04A048 for ; Fri, 1 Mar 2013 05:08:52 +0100 (CET) Received: by mail-da0-f41.google.com with SMTP id j17so1192845dan.0 for ; Thu, 28 Feb 2013 20:08:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=x-received:from:to:cc:subject:date:message-id:x-mailer:references :in-reply-to; bh=7cvbXyaXO/x5Lla6nnL0Ohy6qLxJLxe3XLwskU1T7cI=; b=XSEvt0N3Ac25lib2WX7HIN34dwBNKYOjEeCOImat0NEk/Y2TCFQ4CK9XcRak/V5bbw +M//KI25QtRO1K7yZHa1w3YX0Vae/A8oQXOcBS/FldYIdaIhpPy6MoLqIou+hmUHptPL qeG6dYxu15S0cyyvOYRNgnooRJ7AZSI2XJyWU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:references :in-reply-to:x-gm-message-state; bh=7cvbXyaXO/x5Lla6nnL0Ohy6qLxJLxe3XLwskU1T7cI=; b=YFWN8+DHapy0FsF46114/lrOiZ8qN/CRDXBp1jTz1AvdvuBP2Ld8hmxUoDmYZTd1Gs X0hQRfUT2B3u1hOJmKw76iQ2D73NSzMCK3mWWbCD/5XIll242f3No1UROSvizg0wx+jF oaa2pnFXDf4oJbfhgw8CMGfC9wbobMH8gRcXMld5DdJPq/o1Bp+jVLse8YAVoC6YTGGO tqcQDBQvdXgtfSSTKYf/auurfoMLxM/uDZV+bZY1K9MUT2Xl1syVWrigM16ylR/X5ZvU SwbH+k+QAJz6ySGto3uEe8T68O6Upc/Cl3QXJ1nAV5Bum/0G74ErAEmSO9ob4a/gpPfC A4hw== X-Received: by 10.68.138.225 with SMTP id qt1mr12430628pbb.82.1362110930559; Thu, 28 Feb 2013 20:08:50 -0800 (PST) Received: from jwerner-linux.mtv.corp.google.com (jwerner-linux.mtv.corp.google.com [172.22.72.75]) by mx.google.com with ESMTPS id tp2sm10545807pbc.12.2013.02.28.20.08.49 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 28 Feb 2013 20:08:49 -0800 (PST) From: Julius Werner To: U-Boot Mailing List Date: Thu, 28 Feb 2013 20:08:40 -0800 Message-Id: <1362110921-9779-1-git-send-email-jwerner@chromium.org> X-Mailer: git-send-email 1.8.1.3 References: <1360979565-23002-1-git-send-email-jwerner@chromium.org> <20130218190151.GB3050@bill-the-cat> <5123FAD6.3010200@ti.com> <1361322897-16029-1-git-send-email-jwerner@chromium.org> In-Reply-To: X-Gm-Message-State: ALoCoQm9xURSGOIXyEghPl1JSdDz9H3b6dekk9wr8CEwlaGQZTVw+Ben2sVKbun3leqmA6el+7mW X-Mailman-Approved-At: Fri, 01 Mar 2013 08:42:51 +0100 Cc: Julius Werner Subject: [U-Boot] [PATCH] usb: Add new command to set USB 2.0 port test modes X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de 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 --- common/cmd_usb.c | 121 +++++++++++++++++++++++++++++++++++--------- drivers/usb/host/ehci-hcd.c | 25 +++++---- include/usb_defs.h | 13 +++++ 3 files changed, 125 insertions(+), 34 deletions(-) diff --git a/common/cmd_usb.c b/common/cmd_usb.c index dacdc2d..adc5f02 100644 --- a/common/cmd_usb.c +++ b/common/cmd_usb.c @@ -269,6 +269,22 @@ static void usb_display_config(struct usb_device *dev) printf("\n"); } +static struct usb_device *usb_find_device(int devnum) +{ + struct usb_device *dev; + int d; + + for (d = 0; d < USB_MAX_DEVICE; d++) { + dev = usb_get_dev_index(d); + if (dev == NULL) + return NULL; + if (dev->devnum == devnum) + return dev; + } + + return NULL; +} + static inline char *portspeed(int speed) { if (speed == USB_SPEED_HIGH) @@ -348,6 +364,66 @@ static void usb_show_tree(struct usb_device *dev) usb_show_tree_graph(dev, &preamble[0]); } +static int usb_test(struct usb_device *dev, int port, char* arg) +{ + int mode; + + if (port > dev->maxchild) { + printf("Device is no hub or does not have %d ports.\n", port); + return 1; + } + + switch (arg[0]) { + case 'J': + case 'j': + printf("Setting Test_J mode"); + mode = USB_TEST_MODE_J; + break; + case 'K': + case 'k': + printf("Setting Test_K mode"); + mode = USB_TEST_MODE_K; + break; + case 'S': + case 's': + printf("Setting Test_SE0_NAK mode"); + mode = USB_TEST_MODE_SE0_NAK; + break; + case 'P': + case 'p': + printf("Setting Test_Packet mode"); + mode = USB_TEST_MODE_PACKET; + break; + case 'F': + case 'f': + printf("Setting Test_Force_Enable mode"); + mode = USB_TEST_MODE_FORCE_ENABLE; + break; + default: + printf("Unrecognized test mode: %s\nAvailable modes: " + "J, K, S[E0_NAK], P[acket], F[orce_Enable]\n", arg); + return 1; + } + + if (port) + printf(" on downstream facing port %d...\n", port); + else + printf(" on upstream facing port...\n"); + + if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_FEATURE, + port ? USB_RT_PORT : USB_RECIP_DEVICE, + port ? USB_PORT_FEAT_TEST : USB_FEAT_TEST, + (mode << 8) | port, + NULL, 0, USB_CNTL_TIMEOUT) == -1) { + printf("Error during SET_FEATURE.\n"); + return 1; + } else { + printf("Test mode successfully set. Use 'usb start' " + "to return to normal operation.\n"); + return 0; + } +} + /****************************************************************************** * usb boot command intepreter. Derived from diskboot @@ -441,17 +517,9 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } return 0; } else { - int d; - - i = simple_strtoul(argv[2], NULL, 16); + i = simple_strtoul(argv[2], NULL, 10); printf("config for device %d\n", i); - for (d = 0; d < USB_MAX_DEVICE; d++) { - dev = usb_get_dev_index(d); - if (dev == NULL) - break; - if (dev->devnum == i) - break; - } + dev = usb_find_device(i); if (dev == NULL) { printf("*** No device available ***\n"); return 0; @@ -462,6 +530,18 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } return 0; } + if (strncmp(argv[1], "test", 4) == 0) { + if (argc < 5) + return CMD_RET_USAGE; + i = simple_strtoul(argv[2], NULL, 10); + dev = usb_find_device(i); + if (dev == NULL) { + printf("Device %d does not exist.\n", i); + return 1; + } + i = simple_strtoul(argv[3], NULL, 10); + return usb_test(dev, i, argv[4]); + } #ifdef CONFIG_USB_STORAGE if (strncmp(argv[1], "stor", 4) == 0) return usb_stor_info(); @@ -571,7 +651,6 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return CMD_RET_USAGE; } -#ifdef CONFIG_USB_STORAGE U_BOOT_CMD( usb, 5, 1, do_usb, "USB sub-system", @@ -580,30 +659,26 @@ U_BOOT_CMD( "usb stop [f] - stop USB [f]=force stop\n" "usb tree - show USB device tree\n" "usb info [dev] - show available USB devices\n" + "usb test [dev] [port] [mode] - set USB 2.0 test mode\n" + " (specify port 0 to indicate the device's upstream port)\n" + " Available modes: J, K, S[E0_NAK], P[acket], F[orce_Enable]\n" +#ifdef CONFIG_USB_STORAGE "usb storage - show details of USB storage devices\n" "usb dev [dev] - show or set current USB storage device\n" "usb part [dev] - print partition table of one or all USB storage" - " devices\n" + " devices\n" "usb read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n" " to memory address `addr'\n" "usb write addr blk# cnt - write `cnt' blocks starting at block `blk#'\n" " from memory address `addr'" +#endif /* CONFIG_USB_STORAGE */ ); +#ifdef CONFIG_USB_STORAGE U_BOOT_CMD( usbboot, 3, 1, do_usbboot, "boot from USB device", "loadAddr dev:part" ); - -#else -U_BOOT_CMD( - usb, 5, 1, do_usb, - "USB sub-system", - "start - start (scan) USB controller\n" - "usb reset - reset (rescan) USB controller\n" - "usb tree - show USB device tree\n" - "usb info [dev] - show available USB devices" -); -#endif +#endif /* CONFIG_USB_STORAGE */ diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 7f98a63..0213d8a 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -602,15 +602,14 @@ 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 *)&hcor->or_portsc[port - 1]; srclen = 0; debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u\n", @@ -727,7 +726,7 @@ 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; @@ -753,7 +752,7 @@ 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; @@ -779,13 +778,17 @@ 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; @@ -812,7 +815,7 @@ 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)); diff --git a/include/usb_defs.h b/include/usb_defs.h index 9502544..5c5478f 100644 --- a/include/usb_defs.h +++ b/include/usb_defs.h @@ -150,6 +150,18 @@ #define USB_REQ_SET_IDLE 0x0A #define USB_REQ_SET_PROTOCOL 0x0B +/* Device features */ +#define USB_FEAT_HALT 0x00 +#define USB_FEAT_WAKEUP 0x01 +#define USB_FEAT_TEST 0x02 + +/* Test modes */ +#define USB_TEST_MODE_J 0x01 +#define USB_TEST_MODE_K 0x02 +#define USB_TEST_MODE_SE0_NAK 0x03 +#define USB_TEST_MODE_PACKET 0x04 +#define USB_TEST_MODE_FORCE_ENABLE 0x05 + /* "pipe" definitions */ @@ -208,6 +220,7 @@ #define USB_PORT_FEAT_C_SUSPEND 18 #define USB_PORT_FEAT_C_OVER_CURRENT 19 #define USB_PORT_FEAT_C_RESET 20 +#define USB_PORT_FEAT_TEST 21 /* wPortStatus bits */ #define USB_PORT_STAT_CONNECTION 0x0001