1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * NXP ISP1301 USB transceiver driver
4  *
5  * Copyright (C) 2012 Roland Stigge <stigge@antcom.de>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; version 2 of the License.
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 __LINUX_USB_ISP1301_H
19 #define __LINUX_USB_ISP1301_H
20 
21 #include <linux/of.h>
22 
23 /* I2C Register definitions: */
24 
25 #define ISP1301_I2C_MODE_CONTROL_1	0x04	/* u8 read, set, +1 clear */
26 
27 #define MC1_SPEED_REG			(1 << 0)
28 #define MC1_SUSPEND_REG			(1 << 1)
29 #define MC1_DAT_SE0			(1 << 2)
30 #define MC1_TRANSPARENT			(1 << 3)
31 #define MC1_BDIS_ACON_EN		(1 << 4)
32 #define MC1_OE_INT_EN			(1 << 5)
33 #define MC1_UART_EN			(1 << 6)
34 #define MC1_MASK			0x7f
35 
36 #define ISP1301_I2C_MODE_CONTROL_2	0x12	/* u8 read, set, +1 clear */
37 
38 #define MC2_GLOBAL_PWR_DN		(1 << 0)
39 #define MC2_SPD_SUSP_CTRL		(1 << 1)
40 #define MC2_BI_DI			(1 << 2)
41 #define MC2_TRANSP_BDIR0		(1 << 3)
42 #define MC2_TRANSP_BDIR1		(1 << 4)
43 #define MC2_AUDIO_EN			(1 << 5)
44 #define MC2_PSW_EN			(1 << 6)
45 #define MC2_EN2V7			(1 << 7)
46 
47 #define ISP1301_I2C_OTG_CONTROL_1	0x06	/* u8 read, set, +1 clear */
48 
49 #define OTG1_DP_PULLUP			(1 << 0)
50 #define OTG1_DM_PULLUP			(1 << 1)
51 #define OTG1_DP_PULLDOWN		(1 << 2)
52 #define OTG1_DM_PULLDOWN		(1 << 3)
53 #define OTG1_ID_PULLDOWN		(1 << 4)
54 #define OTG1_VBUS_DRV			(1 << 5)
55 #define OTG1_VBUS_DISCHRG		(1 << 6)
56 #define OTG1_VBUS_CHRG			(1 << 7)
57 
58 #define ISP1301_I2C_OTG_CONTROL_2	0x10	/* u8 readonly */
59 
60 #define OTG_B_SESS_END			(1 << 6)
61 #define OTG_B_SESS_VLD			(1 << 7)
62 
63 #define ISP1301_I2C_INTERRUPT_SOURCE	0x8
64 #define ISP1301_I2C_INTERRUPT_LATCH	0xA
65 #define ISP1301_I2C_INTERRUPT_FALLING	0xC
66 #define ISP1301_I2C_INTERRUPT_RISING	0xE
67 
68 #define INT_VBUS_VLD			(1 << 0)
69 #define INT_SESS_VLD			(1 << 1)
70 #define INT_DP_HI			(1 << 2)
71 #define INT_ID_GND			(1 << 3)
72 #define INT_DM_HI			(1 << 4)
73 #define INT_ID_FLOAT			(1 << 5)
74 #define INT_BDIS_ACON			(1 << 6)
75 #define INT_CR_INT			(1 << 7)
76 
77 #define ISP1301_I2C_REG_CLEAR_ADDR	1	/* Register Address Modifier */
78 
79 struct i2c_client *isp1301_get_client(struct device_node *node);
80 
81 #endif /* __LINUX_USB_ISP1301_H */
82