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review.evervolv.com / android_kernel_oneplus_msm8996 / 453f77558810ffa669ed5a510a7173ec49def396 / . / include / linux / usb / langwell_otg.h
blob: e115ae6df1dab8735a9c552a47a60571549d504a [file] [log] [blame]
Hao Wu453f7752009-06-04 16:06:50 +0800[diff] [blame^]1/*
2 * Intel Langwell USB OTG transceiver driver
3 * Copyright (C) 2008, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 */
19
20#ifndef __LANGWELL_OTG_H__
21#define __LANGWELL_OTG_H__
22
23/* notify transceiver driver about OTG events */
24extern void langwell_update_transceiver(void);
25/* HCD register bus driver */
26extern int langwell_register_host(struct pci_driver *host_driver);
27/* HCD unregister bus driver */
28extern void langwell_unregister_host(struct pci_driver *host_driver);
29/* DCD register bus driver */
30extern int langwell_register_peripheral(struct pci_driver *client_driver);
31/* DCD unregister bus driver */
32extern void langwell_unregister_peripheral(struct pci_driver *client_driver);
33/* No silent failure, output warning message */
34extern void langwell_otg_nsf_msg(unsigned long message);
35
36#define CI_USBCMD 0x30
37# define USBCMD_RST BIT(1)
38# define USBCMD_RS BIT(0)
39#define CI_USBSTS 0x34
40# define USBSTS_SLI BIT(8)
41# define USBSTS_URI BIT(6)
42# define USBSTS_PCI BIT(2)
43#define CI_PORTSC1 0x74
44# define PORTSC_PP BIT(12)
45# define PORTSC_LS (BIT(11) | BIT(10))
46# define PORTSC_SUSP BIT(7)
47# define PORTSC_CCS BIT(0)
48#define CI_HOSTPC1 0xb4
49# define HOSTPC1_PHCD BIT(22)
50#define CI_OTGSC 0xf4
51# define OTGSC_DPIE BIT(30)
52# define OTGSC_1MSE BIT(29)
53# define OTGSC_BSEIE BIT(28)
54# define OTGSC_BSVIE BIT(27)
55# define OTGSC_ASVIE BIT(26)
56# define OTGSC_AVVIE BIT(25)
57# define OTGSC_IDIE BIT(24)
58# define OTGSC_DPIS BIT(22)
59# define OTGSC_1MSS BIT(21)
60# define OTGSC_BSEIS BIT(20)
61# define OTGSC_BSVIS BIT(19)
62# define OTGSC_ASVIS BIT(18)
63# define OTGSC_AVVIS BIT(17)
64# define OTGSC_IDIS BIT(16)
65# define OTGSC_DPS BIT(14)
66# define OTGSC_1MST BIT(13)
67# define OTGSC_BSE BIT(12)
68# define OTGSC_BSV BIT(11)
69# define OTGSC_ASV BIT(10)
70# define OTGSC_AVV BIT(9)
71# define OTGSC_ID BIT(8)
72# define OTGSC_HABA BIT(7)
73# define OTGSC_HADP BIT(6)
74# define OTGSC_IDPU BIT(5)
75# define OTGSC_DP BIT(4)
76# define OTGSC_OT BIT(3)
77# define OTGSC_HAAR BIT(2)
78# define OTGSC_VC BIT(1)
79# define OTGSC_VD BIT(0)
80# define OTGSC_INTEN_MASK (0x7f << 24)
81# define OTGSC_INTSTS_MASK (0x7f << 16)
82#define CI_USBMODE 0xf8
83# define USBMODE_CM (BIT(1) | BIT(0))
84# define USBMODE_IDLE 0
85# define USBMODE_DEVICE 0x2
86# define USBMODE_HOST 0x3
87
88#define INTR_DUMMY_MASK (USBSTS_SLI | USBSTS_URI | USBSTS_PCI)
89
90struct otg_hsm {
91 /* Input */
92 int a_bus_resume;
93 int a_bus_suspend;
94 int a_conn;
95 int a_sess_vld;
96 int a_srp_det;
97 int a_vbus_vld;
98 int b_bus_resume;
99 int b_bus_suspend;
100 int b_conn;
101 int b_se0_srp;
102 int b_sess_end;
103 int b_sess_vld;
104 int id;
105
106 /* Internal variables */
107 int a_set_b_hnp_en;
108 int b_srp_done;
109 int b_hnp_enable;
110
111 /* Timeout indicator for timers */
112 int a_wait_vrise_tmout;
113 int a_wait_bcon_tmout;
114 int a_aidl_bdis_tmout;
115 int b_ase0_brst_tmout;
116 int b_bus_suspend_tmout;
117 int b_srp_res_tmout;
118
119 /* Informative variables */
120 int a_bus_drop;
121 int a_bus_req;
122 int a_clr_err;
123 int a_suspend_req;
124 int b_bus_req;
125
126 /* Output */
127 int drv_vbus;
128 int loc_conn;
129 int loc_sof;
130
131 /* Others */
132 int b_bus_suspend_vld;
133};
134
135#define TA_WAIT_VRISE 100
136#define TA_WAIT_BCON 30000
137#define TA_AIDL_BDIS 15000
138#define TB_ASE0_BRST 5000
139#define TB_SE0_SRP 2
140#define TB_SRP_RES 100
141#define TB_BUS_SUSPEND 500
142
143struct langwell_otg_timer {
144 unsigned long expires; /* Number of count increase to timeout */
145 unsigned long count; /* Tick counter */
146 void (*function)(unsigned long); /* Timeout function */
147 unsigned long data; /* Data passed to function */
148 struct list_head list;
149};
150
151struct langwell_otg {
152 struct otg_transceiver otg;
153 struct otg_hsm hsm;
154 void __iomem *regs;
155 unsigned region;
156 struct pci_driver *host_ops;
157 struct pci_driver *client_ops;
158 struct pci_dev *pdev;
159 struct work_struct work;
160 struct workqueue_struct *qwork;
161 spinlock_t lock;
162 spinlock_t wq_lock;
163};
164
165static inline struct langwell_otg *otg_to_langwell(struct otg_transceiver *otg)
166{
167 return container_of(otg, struct langwell_otg, otg);
168}
169
170#ifdef DEBUG
171#define otg_dbg(fmt, args...) \
172 printk(KERN_DEBUG fmt , ## args)
173#else
174#define otg_dbg(fmt, args...) \
175 do { } while (0)
176#endif /* DEBUG */
177#endif /* __LANGWELL_OTG_H__ */