From patchwork Mon Nov 28 19:43:49 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jana Rapava X-Patchwork-Id: 128066 X-Patchwork-Delegate: linux@bohmer.net 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 AE9E9B6F87 for ; Tue, 29 Nov 2011 06:40:25 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 46DF7281D9; Mon, 28 Nov 2011 20:40:24 +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 JvqYAGkTH2UB; Mon, 28 Nov 2011 20:40:23 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 7A1E6281CC; Mon, 28 Nov 2011 20:40:21 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 12415281CC for ; Mon, 28 Nov 2011 20:40:19 +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 L5b+UPWE0zge for ; Mon, 28 Nov 2011 20:40:17 +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-bw0-f44.google.com (mail-bw0-f44.google.com [209.85.214.44]) by theia.denx.de (Postfix) with ESMTPS id 89C2F281CA for ; Mon, 28 Nov 2011 20:40:16 +0100 (CET) Received: by bkbzv15 with SMTP id zv15so8677903bkb.3 for ; Mon, 28 Nov 2011 11:40:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=OTvHCVQoMCLuKjkDHKUbfnK6ELGb4AqEEG56xw91bKA=; b=X4dlrtJtkLaLFk1iIhtBYeYPjAYeoiQDND+YovlGxTH80n/VGo00JkuecHqBoQM9pU eAjVOV6LXRB5z+uFnIbJID2zV1N1y4aW/hnMdZ4dVzfs9LulsVOyJZspegVmbyp8RMLR chJQMibO9MMQ9EPn8GUF5e7+mGmxWZrqLuK/0= Received: by 10.204.154.130 with SMTP id o2mr17240607bkw.138.1322509215525; Mon, 28 Nov 2011 11:40:15 -0800 (PST) Received: from hex.kolej.mff.cuni.cz (janalaptop.kolej.mff.cuni.cz. [78.128.199.214]) by mx.google.com with ESMTPS id z7sm31783515bka.1.2011.11.28.11.40.14 (version=SSLv3 cipher=OTHER); Mon, 28 Nov 2011 11:40:14 -0800 (PST) From: Jana Rapava To: u-boot@lists.denx.de Date: Mon, 28 Nov 2011 20:43:49 +0100 Message-Id: <1322509429-20976-1-git-send-email-fermata7@gmail.com> X-Mailer: git-send-email 1.7.6.3 In-Reply-To: <1322439545-25000-1-git-send-email-fermata7@gmail.com> References: <1322439545-25000-1-git-send-email-fermata7@gmail.com> Cc: Jana Rapava , Wolfgang Grandegger Subject: [U-Boot] [PATCH v6] ulpi: add generic ULPI functionality 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 Add generic functions for reading, writing and setting bits in ULPI registers. Signed-off-by: Jana Rapava Cc: Remy Bohmer Cc: Stefano Babic Cc: Igor Grinberg Cc: Wolfgang Grandegger Cc: Simon Glass Acked-by: Igor Grinberg Acked-by: Simon Glass --- Changes for v2: - make code EHCI-independent - use udelay() in waiting loop - mark static functions as static - naming changes Changes for v3: - merge with patch ulpi: add generic ULPI support header file - rewrite ULPI interface in more functionality-oriented way Changes for v4: - add error-checking - add waiting for completion into ulpi_reset() function Changes for v5: - CodingStyle changes - add comments - simplify implemenation of the ULPI interface functions Changes for v6: - cleanup function ulpi_drive_vbus() Makefile | 1 + drivers/usb/ulpi/Makefile | 45 +++++++ drivers/usb/ulpi/ulpi-viewport.c | 114 ++++++++++++++++++ drivers/usb/ulpi/ulpi.c | 161 +++++++++++++++++++++++++ include/usb/ulpi.h | 238 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 559 insertions(+), 0 deletions(-) create mode 100644 drivers/usb/ulpi/Makefile create mode 100644 drivers/usb/ulpi/ulpi-viewport.c create mode 100644 drivers/usb/ulpi/ulpi.c create mode 100644 include/usb/ulpi.h diff --git a/Makefile b/Makefile index dfe939f..70a1e1e 100644 --- a/Makefile +++ b/Makefile @@ -272,6 +272,7 @@ LIBS += drivers/usb/gadget/libusb_gadget.o LIBS += drivers/usb/host/libusb_host.o LIBS += drivers/usb/musb/libusb_musb.o LIBS += drivers/usb/phy/libusb_phy.o +LIBS += drivers/usb/ulpi/libusb_ulpi.o LIBS += drivers/video/libvideo.o LIBS += drivers/watchdog/libwatchdog.o LIBS += common/libcommon.o diff --git a/drivers/usb/ulpi/Makefile b/drivers/usb/ulpi/Makefile new file mode 100644 index 0000000..a1a2244 --- /dev/null +++ b/drivers/usb/ulpi/Makefile @@ -0,0 +1,45 @@ +# +# Copyright (C) 2011 Jana Rapava +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB := $(obj)libusb_ulpi.o + +COBJS-$(CONFIG_USB_ULPI) += ulpi.o +COBJS-$(CONFIG_USB_ULPI_VIEWPORT) += ulpi-viewport.o + +COBJS := $(COBJS-y) +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) + +all: $(LIB) + +$(LIB): $(obj).depend $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/drivers/usb/ulpi/ulpi-viewport.c b/drivers/usb/ulpi/ulpi-viewport.c new file mode 100644 index 0000000..7764939 --- /dev/null +++ b/drivers/usb/ulpi/ulpi-viewport.c @@ -0,0 +1,114 @@ +/* + * Copyright (C) 2011 Jana Rapava + * Based on: + * linux/drivers/usb/otg/ulpi_viewport.c + * + * Original Copyright follow: + * Copyright (C) 2011 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include + +/* ULPI viewport control bits */ +#define ULPI_WU (1 << 31) +#define ULPI_SS (1 << 27) +#define ULPI_RWRUN (1 << 30) +#define ULPI_RWCTRL (1 << 29) + +#define ULPI_ADDR_SHIFT 16 +#define ulpi_write_mask(value) ((value) & 0xff) +#define ulpi_read_mask(value) (((value) >> 8) & 0xff) + +/* This function issues ULPI wakeup/read-write request + * and waits until ULPI interface signalizes completion. + * 'ulpi_value' is properly constructed ULPI request, + * 'ulpi_mask' is ULPI_WU for wakeup, ULPI_RWRUN for read or write. + */ +static int ulpi_request(u32 ulpi_viewport, u32 ulpi_value, u32 ulpi_mask) +{ + int timeout = CONFIG_USB_ULPI_TIMEOUT; + u32 tmp; + + writel(ulpi_value, ulpi_viewport); + + /* Wait for the bits in ulpi_mask to become zero. */ + while (--timeout) { + tmp = readl(ulpi_viewport); + if (!(tmp & ulpi_mask)) + return 0; + udelay(1); + } + + return ULPI_ERROR; +} + +/* If ULPI bus isn't already awake, issue wakeup request via ulpi_request(). */ +static int ulpi_wakeup(u32 ulpi_viewport) +{ + if (readl(ulpi_viewport) & ULPI_SS) + return 0; /* already awake */ + + return ulpi_request(ulpi_viewport, ULPI_WU, ULPI_WU); +} + +/* + * Wakeup ULPI interface and, if successful, create and issue + * ULPI write request via ulpi_request(). + * 'reg' is pointer to member of structure ulpi_regs + * 'value' is value to be written. + */ +u32 ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value) +{ + u32 tmp; + + if (ulpi_wakeup(ulpi_viewport)) { + printf("ULPI wakeup timed out\n"); + return ULPI_ERROR; + } + + tmp = ulpi_request(ulpi_viewport, ULPI_RWRUN | ULPI_RWCTRL | + (u32)reg << ULPI_ADDR_SHIFT | ulpi_write_mask(value), + ULPI_RWRUN); + if (tmp) + printf("ULPI write timed out\n"); + + return tmp; +} + +/* + * Wakeup ULPI interface and, if successful, create and issue + * ULPI read request via ulpi_request(). + * 'reg' is pointer to member of structure ulpi_regs. + * Return value is value which was read, or ULPI_ERROR if wakeup or read + * request timed out. + */ +u32 ulpi_read(u32 ulpi_viewport, u8 *reg) +{ + u32 tmp; + + if (ulpi_wakeup(ulpi_viewport)) { + printf("ULPI wakeup timed out\n"); + return ULPI_ERROR; + } + + tmp = ulpi_request(ulpi_viewport, ULPI_RWRUN | + (u32)reg << ULPI_ADDR_SHIFT, ULPI_RWRUN); + if (tmp) { + printf("ULPI read timed out\n"); + return tmp; + } + + return ulpi_read_mask(readl(ulpi_viewport)); +} diff --git a/drivers/usb/ulpi/ulpi.c b/drivers/usb/ulpi/ulpi.c new file mode 100644 index 0000000..0a38877 --- /dev/null +++ b/drivers/usb/ulpi/ulpi.c @@ -0,0 +1,161 @@ +/* + * Copyright (C) 2011 Jana Rapava + * Based on: + * linux/drivers/usb/otg/ulpi.c + * Generic ULPI USB transceiver support + * + * Original Copyright follow: + * Copyright (C) 2009 Daniel Mack + * + * Based on sources from + * + * Sascha Hauer + * Freescale Semiconductors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include + +static struct ulpi_regs *ulpi = (struct ulpi_regs *)0; + +static int ulpi_integrity_check(u32 ulpi_viewport) +{ + u32 tmp = 0; + int i; + + /* + * Write at and read from 3 parts of the Scratch Register + * (8 bits each). + */ + for (i = 0; i < 2; i++) { + ulpi_write(ulpi_viewport, &ulpi->scratch, + ULPI_TEST_VALUE << i); + tmp = ulpi_read(ulpi_viewport, &ulpi->scratch); + + if (tmp != (ULPI_TEST_VALUE << i)) { + printf("ULPI integrity check failed\n"); + return ULPI_ERROR; + } + } + return 0; +} + +/* Identify ULPI transceiver, perform integrity check. */ +int ulpi_init(u32 ulpi_viewport) +{ + u32 tmp = 0; + int reg; + + /* Assemble ID from four ULPI ID registers (8 bits each). */ + for (reg = ULPI_ID_REGS_COUNT - 1; reg >= 0; reg--) + tmp |= ulpi_read(ulpi_viewport, (u8 *)reg) << (reg * 8); + + /* Split ID into vendor and product ID. */ + debug("Found ULPI transceiver ID %04x:%04x\n", tmp >> 16, tmp & 0xffff); + + return ulpi_integrity_check(ulpi_viewport); +} + +/* + * This function is used to select transceiver speed. + * Accepted 'speed' values are: + * ULPI_FC_HIGH_SPEED, ULPI_FC_FULL_SPEED, ULPI_FC_LOW_SPEED, ULPI_FC_FS4LS + * (FS transceiver for LS packets). + * Default value is ULPI_FC_FULL_SPEED. + */ +int ulpi_select_transceiver(u32 ulpi_viewport, int speed) +{ + return ulpi_write(ulpi_viewport, &ulpi->function_ctrl_set, speed); +} + +/* + * Signals that 5V is driven to VBUS. + * 'ext_power_supply' is 1, if we use external supply instead of + * internal charge pump(which is default). + * 'use_ext_indicator' is 1, if we use external VBUS over-current indicator. + */ +int ulpi_drive_vbus(u32 ulpi_viewport, + int ext_power_supply, int use_ext_indicator) +{ + int flags = ULPI_OTG_DRVVBUS; + + if (ext_power_supply) + flags |= ULPI_OTG_DRVVBUS_EXT; + if (use_ext_indicator) + flags |= ULPI_OTG_EXTVBUSIND; + + return ulpi_write(ulpi_viewport, &ulpi->otg_ctrl_set, flags); +} + +/* + * If enable is 0, pull-down resistors not connected to D+ and D-, + * else pull-down resistors connected to D+ and D-. + * Default behaviour is as for enable equal to 1. + */ +int ulpi_pulldown(u32 ulpi_viewport, int enable) +{ + u8 *reg = (enable) ? &ulpi->otg_ctrl_set + : &ulpi->otg_ctrl_clear; + + return ulpi_write(ulpi_viewport, reg, + ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN); +} + +/* + * This function is used to select bit encoding style. + * Accepted 'opmode' values are: + * ULPI_FC_OPMODE_NORMAL, ULPI_FC_OPMODE_NONDRIVING, + * ULPI_FC_OPMODE_DISABLE_NRZI, ULPI_FC_OPMODE_NOSYNC_NOEOP. + * Default value is ULPI_FC_OPMODE_NORMAL. + */ +int ulpi_select_opmode(u32 ulpi_viewport, int opmode) +{ + return ulpi_write(ulpi_viewport, &ulpi->function_ctrl_set, opmode); +} + +/* Put PHY into low power mode. */ +int ulpi_suspend(u32 ulpi_viewport) +{ + return ulpi_write(ulpi_viewport, &ulpi->function_ctrl_clear, + ULPI_FC_SUSPENDM); +} + +/* Put PHY out of low power mode. */ +int ulpi_resume(u32 ulpi_viewport) +{ + return ulpi_write(ulpi_viewport, &ulpi->function_ctrl_set, + ULPI_FC_SUSPENDM); +} + +/* Reset transceiver, does not reset ULPI interface or ULPI register set. */ +int ulpi_reset(u32 ulpi_viewport) +{ + int timeout = CONFIG_USB_ULPI_TIMEOUT; + u32 tmp; + int ret = ulpi_write(ulpi_viewport, &ulpi->function_ctrl_set, + ULPI_FC_RESET); + + if (ret) + return ret; + + /* Wait for the RESET bit to become zero. */ + while (--timeout) { + tmp = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); + if (!(tmp & ULPI_FC_RESET)) + return 0; + udelay(1); + } + + return ULPI_ERROR; +} diff --git a/include/usb/ulpi.h b/include/usb/ulpi.h new file mode 100644 index 0000000..d7b37a6 --- /dev/null +++ b/include/usb/ulpi.h @@ -0,0 +1,238 @@ +/* + * Copyright (C) 2011 Jana Rapava + * Based on: + * linux/include/linux/usb/ulpi.h + * ULPI defines and function prototypes + * + * Original Copyrights follow: + * Copyright (C) 2010 Nokia Corporation + * + * This software is distributed under the terms of the GNU General + * Public License ("GPL") as published by the Free Software Foundation, + * version 2 of that License. + */ + +#ifndef __USB_ULPI_H +#define __USB_ULPI_H + +#define ULPI_ID_REGS_COUNT 4 +#define ULPI_TEST_VALUE 0x55 +/* value greater than 0xff indicates failure */ +#define ULPI_ERROR (1 << 8) + +/* ULPI viewport control bits */ +#define ULPI_WU (1 << 31) +#define ULPI_SS (1 << 27) +#define ULPI_RWRUN (1 << 30) +#define ULPI_RWCTRL (1 << 29) + +/* ULPI access modes */ +#define ULPI_WRITE 0x00 +#define ULPI_SET 0x01 +#define ULPI_CLEAR 0x02 + +struct ulpi_regs { + /* Vendor ID and Product ID: 0x00 - 0x03 Read-only */ + u8 vendor_id_low; + u8 vendor_id_high; + u8 product_id_low; + u8 product_id_high; + /* Function Control: 0x04 - 0x06 Read */ + u8 function_ctrl; /* 0x04 Write */ + u8 function_ctrl_set; /* 0x05 Set */ + u8 function_ctrl_clear; /* 0x06 Clear */ + /* Interface Control: 0x07 - 0x09 Read */ + u8 iface_ctrl; /* 0x07 Write */ + u8 iface_ctrl_set; /* 0x08 Set */ + u8 iface_ctrl_clear; /* 0x09 Clear */ + /* OTG Control: 0x0A - 0x0C Read */ + u8 otg_ctrl; /* 0x0A Write */ + u8 otg_ctrl_set; /* 0x0B Set */ + u8 otg_ctrl_clear; /* 0x0C Clear */ + /* USB Interrupt Enable Rising: 0x0D - 0x0F Read */ + u8 usb_ie_rising; /* 0x0D Write */ + u8 usb_ie_rising_set; /* 0x0E Set */ + u8 usb_ie_rising_clear; /* 0x0F Clear */ + /* USB Interrupt Enable Falling: 0x10 - 0x12 Read */ + u8 usb_ie_falling; /* 0x10 Write */ + u8 usb_ie_falling_set; /* 0x11 Set */ + u8 usb_ie_falling_clear; /* 0x12 Clear */ + /* USB Interrupt Status: 0x13 Read-only */ + u8 usb_int_status; + /* USB Interrupt Latch: 0x14 Read-only with auto-clear */ + u8 usb_int_latch; + /* Debug: 0x15 Read-only */ + u8 debug; + /* Scratch Register: 0x16 - 0x18 Read */ + u8 scratch; /* 0x16 Write */ + u8 scratch_set; /* 0x17 Set */ + u8 scratch_clear; /* 0x18 Clear */ + /* + * Optional Carkit registers + */ + /* Carkit Control: 0x19 - 0x1B Read */ + u8 carkit_ctrl; /* 0x19 Write */ + u8 carkit_ctrl_set; /* 0x1A Set */ + u8 carkit_ctrl_clear; /* 0x1B Clear */ + /* Carkit Interrupt Delay: 0x1C Read, Write */ + u8 carkit_int_delay; + /* Carkit Interrupt Enable: 0x1D - 0x1F Read */ + u8 carkit_ie; /* 0x1D Write */ + u8 carkit_ie_set; /* 0x1E Set */ + u8 carkit_ie_clear; /* 0x1F Clear */ + /* Carkit Interrupt Status: 0x20 Read-only */ + u8 carkit_int_status; + /* Carkit Interrupt Latch: 0x21 Read-only with auto-clear */ + u8 carkit_int_latch; + /* Carkit Pulse Control: 0x22 - 0x24 Read */ + u8 carkit_pulse_ctrl; /* 0x22 Write */ + u8 carkit_pulse_ctrl_set; /* 0x23 Set */ + u8 carkit_pulse_ctrl_clear; /* 0x24 Clear */ + /* + * Other optional registers + */ + /* Transmit Positive Width: 0x25 Read, Write */ + u8 transmit_pos_width; + /* Transmit Negative Width: 0x26 Read, Write */ + u8 transmit_neg_width; + /* Receive Polarity Recovery: 0x27 Read, Write */ + u8 recv_pol_recovery; + /* + * Addresses 0x28 - 0x2E are reserved, so we use offsets + * for immediate registers with higher addresses + */ +}; + +/* Access Extended Register Set (indicator) */ +#define ACCESS_EXT_REGS_OFFSET 0x2f /* read-write */ +/* Vendor-specific */ +#define VENDOR_SPEC_OFFSET 0x30 + +/* + * Extended Register Set + * + * Addresses 0x00-0x3F map directly to Immediate Register Set. + * Addresses 0x40-0x7F are reserved. + * Addresses 0x80-0xff are vendor-specific. + */ +#define EXT_VENDOR_SPEC_OFFSET 0x80 + +/* + * Register Bits + */ + +/* Function Control */ +#define ULPI_FC_XCVRSEL (1 << 0) +#define ULPI_FC_XCVRSEL_MASK (3 << 0) +#define ULPI_FC_HIGH_SPEED (0 << 0) +#define ULPI_FC_FULL_SPEED (1 << 0) +#define ULPI_FC_LOW_SPEED (2 << 0) +#define ULPI_FC_FS4LS (3 << 0) +#define ULPI_FC_TERMSELECT (1 << 2) +#define ULPI_FC_OPMODE (1 << 3) +#define ULPI_FC_OPMODE_MASK (3 << 3) +#define ULPI_FC_OPMODE_NORMAL (0 << 3) +#define ULPI_FC_OPMODE_NONDRIVING (1 << 3) +#define ULPI_FC_OPMODE_DISABLE_NRZI (2 << 3) +#define ULPI_FC_OPMODE_NOSYNC_NOEOP (3 << 3) +#define ULPI_FC_RESET (1 << 5) +#define ULPI_FC_SUSPENDM (1 << 6) + +/* Interface Control */ +#define ULPI_IFACE_6_PIN_SERIAL_MODE (1 << 0) +#define ULPI_IFACE_3_PIN_SERIAL_MODE (1 << 1) +#define ULPI_IFACE_CARKITMODE (1 << 2) +#define ULPI_IFACE_CLOCKSUSPENDM (1 << 3) +#define ULPI_IFACE_AUTORESUME (1 << 4) +#define ULPI_IFACE_EXTVBUS_COMPLEMENT (1 << 5) +#define ULPI_IFACE_PASSTHRU (1 << 6) +#define ULPI_IFACE_PROTECT_IFC_DISABLE (1 << 7) + +/* OTG Control */ +#define ULPI_OTG_ID_PULLUP (1 << 0) +#define ULPI_OTG_DP_PULLDOWN (1 << 1) +#define ULPI_OTG_DM_PULLDOWN (1 << 2) +#define ULPI_OTG_DISCHRGVBUS (1 << 3) +#define ULPI_OTG_CHRGVBUS (1 << 4) +#define ULPI_OTG_DRVVBUS (1 << 5) +#define ULPI_OTG_DRVVBUS_EXT (1 << 6) +#define ULPI_OTG_EXTVBUSIND (1 << 7) + +/* + * USB Interrupt Enable Rising, + * USB Interrupt Enable Falling, + * USB Interrupt Status and + * USB Interrupt Latch + */ +#define ULPI_INT_HOST_DISCONNECT (1 << 0) +#define ULPI_INT_VBUS_VALID (1 << 1) +#define ULPI_INT_SESS_VALID (1 << 2) +#define ULPI_INT_SESS_END (1 << 3) +#define ULPI_INT_IDGRD (1 << 4) + +/* Debug */ +#define ULPI_DEBUG_LINESTATE0 (1 << 0) +#define ULPI_DEBUG_LINESTATE1 (1 << 1) + +/* Carkit Control */ +#define ULPI_CARKIT_CTRL_CARKITPWR (1 << 0) +#define ULPI_CARKIT_CTRL_IDGNDDRV (1 << 1) +#define ULPI_CARKIT_CTRL_TXDEN (1 << 2) +#define ULPI_CARKIT_CTRL_RXDEN (1 << 3) +#define ULPI_CARKIT_CTRL_SPKLEFTEN (1 << 4) +#define ULPI_CARKIT_CTRL_SPKRIGHTEN (1 << 5) +#define ULPI_CARKIT_CTRL_MICEN (1 << 6) + +/* Carkit Interrupt Enable */ +#define ULPI_CARKIT_INT_EN_IDFLOAT_RISE (1 << 0) +#define ULPI_CARKIT_INT_EN_IDFLOAT_FALL (1 << 1) +#define ULPI_CARKIT_INT_EN_CARINTDET (1 << 2) +#define ULPI_CARKIT_INT_EN_DP_RISE (1 << 3) +#define ULPI_CARKIT_INT_EN_DP_FALL (1 << 4) + +/* + * Carkit Interrupt Status and + * Carkit Interrupt Latch + */ +#define ULPI_CARKIT_INT_IDFLOAT (1 << 0) +#define ULPI_CARKIT_INT_CARINTDET (1 << 1) +#define ULPI_CARKIT_INT_DP (1 << 2) + +/* Carkit Pulse Control*/ +#define ULPI_CARKIT_PLS_CTRL_TXPLSEN (1 << 0) +#define ULPI_CARKIT_PLS_CTRL_RXPLSEN (1 << 1) +#define ULPI_CARKIT_PLS_CTRL_SPKRLEFT_BIASEN (1 << 2) +#define ULPI_CARKIT_PLS_CTRL_SPKRRIGHT_BIASEN (1 << 3) + +/* + * This is the generic ULPI interface. + * All functions with the exception of ulpi_read() return 0 in the case + * of success, ULPI_ERROR otherwise. + * 'ulpi_viewport' have to be address of ULPI Viewport register. + */ +/* + * This function should be called before every other function + * to check the ULPI registers. + */ +int ulpi_init(u32 ulpi_viewport); + +/* + * These are wrappers for functionalities, which could be enabled + * via ULPI registers. + */ +int ulpi_select_transceiver(u32 ulpi_viewport, int speed); +int ulpi_drive_vbus(u32 ulpi_viewport, + int ext_power_supply, int use_ext_indicator); +int ulpi_pulldown(u32 ulpi_viewport, int enable); +int ulpi_select_opmode(u32 ulpi_viewport, int style); +int ulpi_suspend(u32 ulpi_viewport); +int ulpi_resume(u32 ulpi_viewport); +int ulpi_reset(u32 ulpi_viewport); + +/* + * These are functions for direct reading from and writing to + * ULPI registers. + */ +u32 ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value); +u32 ulpi_read(u32 ulpi_viewport, u8 *reg); +#endif /* __USB_ULPI_H */