1 /* linux/include/asm-arm/arch-msm/hsusb.h
3 * Copyright (C) 2008 Google, Inc.
4 * Author: Brian Swetland <swetland@google.com>
5 * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 #ifndef __ASM_ARCH_MSM_HSUSB_H
19 #define __ASM_ARCH_MSM_HSUSB_H
21 #include <linux/types.h>
22 #include <linux/usb/otg.h>
23 #include <linux/clk.h>
28 * OTG_NO_CONTROL Id/VBUS notifications not required. Useful in host
30 * OTG_PHY_CONTROL Id/VBUS notifications comes form USB PHY.
31 * OTG_PMIC_CONTROL Id/VBUS notifications comes from PMIC hardware.
32 * OTG_USER_CONTROL Id/VBUS notifcations comes from User via sysfs.
35 enum otg_control_type
{
45 * INVALID_PHY Unsupported PHY
46 * CI_45NM_INTEGRATED_PHY Chipidea 45nm integrated PHY
47 * SNPS_28NM_INTEGRATED_PHY Synopsis 28nm integrated PHY
50 enum msm_usb_phy_type
{
52 CI_45NM_INTEGRATED_PHY
,
53 SNPS_28NM_INTEGRATED_PHY
,
56 #define IDEV_CHG_MAX 1500
60 * Different states involved in USB charger detection.
62 * USB_CHG_STATE_UNDEFINED USB charger is not connected or detection
63 * process is not yet started.
64 * USB_CHG_STATE_WAIT_FOR_DCD Waiting for Data pins contact.
65 * USB_CHG_STATE_DCD_DONE Data pin contact is detected.
66 * USB_CHG_STATE_PRIMARY_DONE Primary detection is completed (Detects
67 * between SDP and DCP/CDP).
68 * USB_CHG_STATE_SECONDARY_DONE Secondary detection is completed (Detects
69 * between DCP and CDP).
70 * USB_CHG_STATE_DETECTED USB charger type is determined.
74 USB_CHG_STATE_UNDEFINED
= 0,
75 USB_CHG_STATE_WAIT_FOR_DCD
,
76 USB_CHG_STATE_DCD_DONE
,
77 USB_CHG_STATE_PRIMARY_DONE
,
78 USB_CHG_STATE_SECONDARY_DONE
,
79 USB_CHG_STATE_DETECTED
,
85 * USB_INVALID_CHARGER Invalid USB charger.
86 * USB_SDP_CHARGER Standard downstream port. Refers to a downstream port
87 * on USB2.0 compliant host/hub.
88 * USB_DCP_CHARGER Dedicated charger port (AC charger/ Wall charger).
89 * USB_CDP_CHARGER Charging downstream port. Enumeration can happen and
90 * IDEV_CHG_MAX can be drawn irrespective of USB state.
94 USB_INVALID_CHARGER
= 0,
101 * struct msm_otg_platform_data - platform device data
102 * for msm_otg driver.
103 * @phy_init_seq: PHY configuration sequence values. Value of -1 is reserved as
104 * "do not overwrite default vaule at this address".
105 * @phy_init_sz: PHY configuration sequence size.
106 * @vbus_power: VBUS power on/off routine.
107 * @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
108 * @mode: Supported mode (OTG/peripheral/host).
109 * @otg_control: OTG switch controlled by user/Id pin
111 struct msm_otg_platform_data
{
114 void (*vbus_power
)(bool on
);
115 unsigned power_budget
;
116 enum usb_dr_mode mode
;
117 enum otg_control_type otg_control
;
118 enum msm_usb_phy_type phy_type
;
119 void (*setup_gpio
)(enum usb_otg_state state
);
120 int (*link_clk_reset
)(struct clk
*link_clk
, bool assert);
121 int (*phy_clk_reset
)(struct clk
*phy_clk
);
125 * struct msm_otg: OTG driver data. Shared by HCD and DCD.
126 * @otg: USB OTG Transceiver structure.
127 * @pdata: otg device platform data.
128 * @irq: IRQ number assigned for HSUSB controller.
129 * @clk: clock struct of usb_hs_clk.
130 * @pclk: clock struct of usb_hs_pclk.
131 * @phy_reset_clk: clock struct of usb_phy_clk.
132 * @core_clk: clock struct of usb_hs_core_clk.
133 * @regs: ioremapped register base address.
134 * @inputs: OTG state machine inputs(Id, SessValid etc).
135 * @sm_work: OTG state machine work.
136 * @in_lpm: indicates low power mode (LPM) state.
137 * @async_int: Async interrupt arrived.
138 * @cur_power: The amount of mA available from downstream port.
139 * @chg_work: Charger detection work.
140 * @chg_state: The state of charger detection process.
141 * @chg_type: The type of charger attached.
142 * @dcd_retires: The retry count used to track Data contact
147 struct msm_otg_platform_data
*pdata
;
151 struct clk
*phy_reset_clk
;
152 struct clk
*core_clk
;
156 unsigned long inputs
;
157 struct work_struct sm_work
;
162 struct delayed_work chg_work
;
163 enum usb_chg_state chg_state
;
164 enum usb_chg_type chg_type
;
166 struct regulator
*v3p3
;
167 struct regulator
*v1p8
;
168 struct regulator
*vddcx
;
170 struct reset_control
*phy_rst
;
171 struct reset_control
*link_rst
;