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Diffstat (limited to 'drivers/usb/gadget/ci13xxx_udc.h')
-rw-r--r--drivers/usb/gadget/ci13xxx_udc.h195
1 files changed, 195 insertions, 0 deletions
diff --git a/drivers/usb/gadget/ci13xxx_udc.h b/drivers/usb/gadget/ci13xxx_udc.h
new file mode 100644
index 000000000000..4026e9cede34
--- /dev/null
+++ b/drivers/usb/gadget/ci13xxx_udc.h
@@ -0,0 +1,195 @@
1/*
2 * ci13xxx_udc.h - structures, registers, and macros MIPS USB IP core
3 *
4 * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
5 *
6 * Author: David Lopo
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * Description: MIPS USB IP core family device controller
13 * Structures, registers and logging macros
14 */
15
16#ifndef _CI13XXX_h_
17#define _CI13XXX_h_
18
19/******************************************************************************
20 * DEFINE
21 *****************************************************************************/
22#define ENDPT_MAX (16)
23#define CTRL_PAYLOAD_MAX (64)
24#define RX (0) /* similar to USB_DIR_OUT but can be used as an index */
25#define TX (1) /* similar to USB_DIR_IN but can be used as an index */
26
27/******************************************************************************
28 * STRUCTURES
29 *****************************************************************************/
30/* DMA layout of transfer descriptors */
31struct ci13xxx_td {
32 /* 0 */
33 u32 next;
34#define TD_TERMINATE BIT(0)
35 /* 1 */
36 u32 token;
37#define TD_STATUS (0x00FFUL << 0)
38#define TD_STATUS_TR_ERR BIT(3)
39#define TD_STATUS_DT_ERR BIT(5)
40#define TD_STATUS_HALTED BIT(6)
41#define TD_STATUS_ACTIVE BIT(7)
42#define TD_MULTO (0x0003UL << 10)
43#define TD_IOC BIT(15)
44#define TD_TOTAL_BYTES (0x7FFFUL << 16)
45 /* 2 */
46 u32 page[5];
47#define TD_CURR_OFFSET (0x0FFFUL << 0)
48#define TD_FRAME_NUM (0x07FFUL << 0)
49#define TD_RESERVED_MASK (0x0FFFUL << 0)
50} __attribute__ ((packed));
51
52/* DMA layout of queue heads */
53struct ci13xxx_qh {
54 /* 0 */
55 u32 cap;
56#define QH_IOS BIT(15)
57#define QH_MAX_PKT (0x07FFUL << 16)
58#define QH_ZLT BIT(29)
59#define QH_MULT (0x0003UL << 30)
60 /* 1 */
61 u32 curr;
62 /* 2 - 8 */
63 struct ci13xxx_td td;
64 /* 9 */
65 u32 RESERVED;
66 struct usb_ctrlrequest setup;
67} __attribute__ ((packed));
68
69/* Extension of usb_request */
70struct ci13xxx_req {
71 struct usb_request req;
72 unsigned map;
73 struct list_head queue;
74 struct ci13xxx_td *ptr;
75 dma_addr_t dma;
76};
77
78/* Extension of usb_ep */
79struct ci13xxx_ep {
80 struct usb_ep ep;
81 const struct usb_endpoint_descriptor *desc;
82 u8 dir;
83 u8 num;
84 u8 type;
85 char name[16];
86 struct {
87 struct list_head queue;
88 struct ci13xxx_qh *ptr;
89 dma_addr_t dma;
90 } qh[2];
91 struct usb_request *status;
92 int wedge;
93
94 /* global resources */
95 spinlock_t *lock;
96 struct device *device;
97 struct dma_pool *td_pool;
98};
99
100/* CI13XXX UDC descriptor & global resources */
101struct ci13xxx {
102 spinlock_t *lock; /* ctrl register bank access */
103
104 struct dma_pool *qh_pool; /* DMA pool for queue heads */
105 struct dma_pool *td_pool; /* DMA pool for transfer descs */
106
107 struct usb_gadget gadget; /* USB slave device */
108 struct ci13xxx_ep ci13xxx_ep[ENDPT_MAX]; /* extended endpts */
109
110 struct usb_gadget_driver *driver; /* 3rd party gadget driver */
111};
112
113/******************************************************************************
114 * REGISTERS
115 *****************************************************************************/
116/* register size */
117#define REG_BITS (32)
118
119/* HCCPARAMS */
120#define HCCPARAMS_LEN BIT(17)
121
122/* DCCPARAMS */
123#define DCCPARAMS_DEN (0x1F << 0)
124#define DCCPARAMS_DC BIT(7)
125
126/* TESTMODE */
127#define TESTMODE_FORCE BIT(0)
128
129/* USBCMD */
130#define USBCMD_RS BIT(0)
131#define USBCMD_RST BIT(1)
132#define USBCMD_SUTW BIT(13)
133
134/* USBSTS & USBINTR */
135#define USBi_UI BIT(0)
136#define USBi_UEI BIT(1)
137#define USBi_PCI BIT(2)
138#define USBi_URI BIT(6)
139#define USBi_SLI BIT(8)
140
141/* DEVICEADDR */
142#define DEVICEADDR_USBADRA BIT(24)
143#define DEVICEADDR_USBADR (0x7FUL << 25)
144
145/* PORTSC */
146#define PORTSC_SUSP BIT(7)
147#define PORTSC_HSP BIT(9)
148#define PORTSC_PTC (0x0FUL << 16)
149
150/* DEVLC */
151#define DEVLC_PSPD (0x03UL << 25)
152#define DEVLC_PSPD_HS (0x02UL << 25)
153
154/* USBMODE */
155#define USBMODE_CM (0x03UL << 0)
156#define USBMODE_CM_IDLE (0x00UL << 0)
157#define USBMODE_CM_DEVICE (0x02UL << 0)
158#define USBMODE_CM_HOST (0x03UL << 0)
159#define USBMODE_SLOM BIT(3)
160
161/* ENDPTCTRL */
162#define ENDPTCTRL_RXS BIT(0)
163#define ENDPTCTRL_RXT (0x03UL << 2)
164#define ENDPTCTRL_RXR BIT(6) /* reserved for port 0 */
165#define ENDPTCTRL_RXE BIT(7)
166#define ENDPTCTRL_TXS BIT(16)
167#define ENDPTCTRL_TXT (0x03UL << 18)
168#define ENDPTCTRL_TXR BIT(22) /* reserved for port 0 */
169#define ENDPTCTRL_TXE BIT(23)
170
171/******************************************************************************
172 * LOGGING
173 *****************************************************************************/
174#define ci13xxx_printk(level, format, args...) \
175do { \
176 if (_udc == NULL) \
177 printk(level "[%s] " format "\n", __func__, ## args); \
178 else \
179 dev_printk(level, _udc->gadget.dev.parent, \
180 "[%s] " format "\n", __func__, ## args); \
181} while (0)
182
183#define err(format, args...) ci13xxx_printk(KERN_ERR, format, ## args)
184#define warn(format, args...) ci13xxx_printk(KERN_WARNING, format, ## args)
185#define info(format, args...) ci13xxx_printk(KERN_INFO, format, ## args)
186
187#ifdef TRACE
188#define trace(format, args...) ci13xxx_printk(KERN_DEBUG, format, ## args)
189#define dbg_trace(format, args...) dev_dbg(dev, format, ##args)
190#else
191#define trace(format, args...) do {} while (0)
192#define dbg_trace(format, args...) do {} while (0)
193#endif
194
195#endif /* _CI13XXX_h_ */
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