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1 | /* linux/include/asm-arm/arch-msm/hsusb.h |
2 | * | |
3 | * Copyright (C) 2008 Google, Inc. | |
4 | * Author: Brian Swetland <swetland@google.com> | |
d860852e | 5 | * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved. |
e0c201f3 PK |
6 | * |
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. | |
10 | * | |
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. | |
15 | * | |
16 | */ | |
17 | ||
18 | #ifndef __ASM_ARCH_MSM_HSUSB_H | |
19 | #define __ASM_ARCH_MSM_HSUSB_H | |
20 | ||
591fc116 | 21 | #include <linux/extcon.h> |
e0c201f3 PK |
22 | #include <linux/types.h> |
23 | #include <linux/usb/otg.h> | |
5146d771 | 24 | #include <linux/clk.h> |
e0c201f3 | 25 | |
e0c201f3 PK |
26 | /** |
27 | * OTG control | |
28 | * | |
29 | * OTG_NO_CONTROL Id/VBUS notifications not required. Useful in host | |
30 | * only configuration. | |
31 | * OTG_PHY_CONTROL Id/VBUS notifications comes form USB PHY. | |
32 | * OTG_PMIC_CONTROL Id/VBUS notifications comes from PMIC hardware. | |
33 | * OTG_USER_CONTROL Id/VBUS notifcations comes from User via sysfs. | |
34 | * | |
35 | */ | |
36 | enum otg_control_type { | |
37 | OTG_NO_CONTROL = 0, | |
38 | OTG_PHY_CONTROL, | |
39 | OTG_PMIC_CONTROL, | |
40 | OTG_USER_CONTROL, | |
41 | }; | |
42 | ||
d860852e PK |
43 | /** |
44 | * PHY used in | |
45 | * | |
46 | * INVALID_PHY Unsupported PHY | |
47 | * CI_45NM_INTEGRATED_PHY Chipidea 45nm integrated PHY | |
48 | * SNPS_28NM_INTEGRATED_PHY Synopsis 28nm integrated PHY | |
49 | * | |
50 | */ | |
51 | enum msm_usb_phy_type { | |
52 | INVALID_PHY = 0, | |
53 | CI_45NM_INTEGRATED_PHY, | |
54 | SNPS_28NM_INTEGRATED_PHY, | |
55 | }; | |
56 | ||
57 | #define IDEV_CHG_MAX 1500 | |
58 | #define IUNIT 100 | |
59 | ||
60 | /** | |
61 | * Different states involved in USB charger detection. | |
62 | * | |
63 | * USB_CHG_STATE_UNDEFINED USB charger is not connected or detection | |
64 | * process is not yet started. | |
65 | * USB_CHG_STATE_WAIT_FOR_DCD Waiting for Data pins contact. | |
66 | * USB_CHG_STATE_DCD_DONE Data pin contact is detected. | |
67 | * USB_CHG_STATE_PRIMARY_DONE Primary detection is completed (Detects | |
68 | * between SDP and DCP/CDP). | |
69 | * USB_CHG_STATE_SECONDARY_DONE Secondary detection is completed (Detects | |
70 | * between DCP and CDP). | |
71 | * USB_CHG_STATE_DETECTED USB charger type is determined. | |
72 | * | |
73 | */ | |
74 | enum usb_chg_state { | |
75 | USB_CHG_STATE_UNDEFINED = 0, | |
76 | USB_CHG_STATE_WAIT_FOR_DCD, | |
77 | USB_CHG_STATE_DCD_DONE, | |
78 | USB_CHG_STATE_PRIMARY_DONE, | |
79 | USB_CHG_STATE_SECONDARY_DONE, | |
80 | USB_CHG_STATE_DETECTED, | |
81 | }; | |
82 | ||
83 | /** | |
84 | * USB charger types | |
85 | * | |
86 | * USB_INVALID_CHARGER Invalid USB charger. | |
87 | * USB_SDP_CHARGER Standard downstream port. Refers to a downstream port | |
88 | * on USB2.0 compliant host/hub. | |
89 | * USB_DCP_CHARGER Dedicated charger port (AC charger/ Wall charger). | |
90 | * USB_CDP_CHARGER Charging downstream port. Enumeration can happen and | |
91 | * IDEV_CHG_MAX can be drawn irrespective of USB state. | |
92 | * | |
93 | */ | |
94 | enum usb_chg_type { | |
95 | USB_INVALID_CHARGER = 0, | |
96 | USB_SDP_CHARGER, | |
97 | USB_DCP_CHARGER, | |
98 | USB_CDP_CHARGER, | |
99 | }; | |
100 | ||
e0c201f3 PK |
101 | /** |
102 | * struct msm_otg_platform_data - platform device data | |
dfb2130c | 103 | * for msm_otg driver. |
8364f9af II |
104 | * @phy_init_seq: PHY configuration sequence values. Value of -1 is reserved as |
105 | * "do not overwrite default vaule at this address". | |
106 | * @phy_init_sz: PHY configuration sequence size. | |
e0c201f3 PK |
107 | * @vbus_power: VBUS power on/off routine. |
108 | * @power_budget: VBUS power budget in mA (0 will be treated as 500mA). | |
109 | * @mode: Supported mode (OTG/peripheral/host). | |
110 | * @otg_control: OTG switch controlled by user/Id pin | |
e0c201f3 PK |
111 | */ |
112 | struct msm_otg_platform_data { | |
113 | int *phy_init_seq; | |
8364f9af | 114 | int phy_init_sz; |
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115 | void (*vbus_power)(bool on); |
116 | unsigned power_budget; | |
971232cf | 117 | enum usb_dr_mode mode; |
e0c201f3 | 118 | enum otg_control_type otg_control; |
d860852e | 119 | enum msm_usb_phy_type phy_type; |
e0c201f3 PK |
120 | void (*setup_gpio)(enum usb_otg_state state); |
121 | }; | |
122 | ||
591fc116 II |
123 | /** |
124 | * struct msm_usb_cable - structure for exteternal connector cable | |
125 | * state tracking | |
126 | * @nb: hold event notification callback | |
127 | * @conn: used for notification registration | |
128 | */ | |
129 | struct msm_usb_cable { | |
130 | struct notifier_block nb; | |
83b7b67c | 131 | struct extcon_dev *extcon; |
591fc116 II |
132 | }; |
133 | ||
e0c201f3 PK |
134 | /** |
135 | * struct msm_otg: OTG driver data. Shared by HCD and DCD. | |
136 | * @otg: USB OTG Transceiver structure. | |
137 | * @pdata: otg device platform data. | |
138 | * @irq: IRQ number assigned for HSUSB controller. | |
139 | * @clk: clock struct of usb_hs_clk. | |
140 | * @pclk: clock struct of usb_hs_pclk. | |
e0c201f3 PK |
141 | * @core_clk: clock struct of usb_hs_core_clk. |
142 | * @regs: ioremapped register base address. | |
143 | * @inputs: OTG state machine inputs(Id, SessValid etc). | |
144 | * @sm_work: OTG state machine work. | |
87c0104a PK |
145 | * @in_lpm: indicates low power mode (LPM) state. |
146 | * @async_int: Async interrupt arrived. | |
d860852e PK |
147 | * @cur_power: The amount of mA available from downstream port. |
148 | * @chg_work: Charger detection work. | |
149 | * @chg_state: The state of charger detection process. | |
150 | * @chg_type: The type of charger attached. | |
151 | * @dcd_retires: The retry count used to track Data contact | |
152 | * detection process. | |
44e42ae3 II |
153 | * @manual_pullup: true if VBUS is not routed to USB controller/phy |
154 | * and controller driver therefore enables pull-up explicitly before | |
155 | * starting controller using usbcmd run/stop bit. | |
591fc116 II |
156 | * @vbus: VBUS signal state trakining, using extcon framework |
157 | * @id: ID signal state trakining, using extcon framework | |
6f98f545 II |
158 | * @switch_gpio: Descriptor for GPIO used to control external Dual |
159 | * SPDT USB Switch. | |
160 | * @reboot: Used to inform the driver to route USB D+/D- line to Device | |
161 | * connector | |
e0c201f3 PK |
162 | */ |
163 | struct msm_otg { | |
1d4c9293 | 164 | struct usb_phy phy; |
e0c201f3 PK |
165 | struct msm_otg_platform_data *pdata; |
166 | int irq; | |
167 | struct clk *clk; | |
168 | struct clk *pclk; | |
e0c201f3 PK |
169 | struct clk *core_clk; |
170 | void __iomem *regs; | |
171 | #define ID 0 | |
172 | #define B_SESS_VLD 1 | |
173 | unsigned long inputs; | |
174 | struct work_struct sm_work; | |
87c0104a PK |
175 | atomic_t in_lpm; |
176 | int async_int; | |
d860852e | 177 | unsigned cur_power; |
cfa3ff5d | 178 | int phy_number; |
d860852e PK |
179 | struct delayed_work chg_work; |
180 | enum usb_chg_state chg_state; | |
181 | enum usb_chg_type chg_type; | |
182 | u8 dcd_retries; | |
37cfdaf7 II |
183 | struct regulator *v3p3; |
184 | struct regulator *v1p8; | |
185 | struct regulator *vddcx; | |
a2734543 II |
186 | |
187 | struct reset_control *phy_rst; | |
188 | struct reset_control *link_rst; | |
01799b62 | 189 | int vdd_levels[3]; |
591fc116 | 190 | |
44e42ae3 II |
191 | bool manual_pullup; |
192 | ||
591fc116 II |
193 | struct msm_usb_cable vbus; |
194 | struct msm_usb_cable id; | |
6f98f545 II |
195 | |
196 | struct gpio_desc *switch_gpio; | |
197 | struct notifier_block reboot; | |
e0c201f3 PK |
198 | }; |
199 | ||
200 | #endif |